Built 2026-10-19 (19 October 2026)

Oskarshamn Weather Records (SWE00138028)

Record envelope, standing records and threshold days for Oskarshamn (SWE00138028), Sweden, with 86 years of record.

Key Facts for Oskarshamn

  • Oskarshamn (SWE00138028) is a weather station in Sweden at 57.27 latitude and 16.41 longitude, 20 m (66 ft) above sea level.
  • The station reports from 1941 to 2026, 86 years of record.
  • 1,464 records set at Oskarshamn still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Oskarshamn set a daily record high maximum temperature of 30.3 C (86.5 F) on 14 August 2026.

About the Station

  • Location: Sweden, 57.27 latitude, 16.41 longitude.
  • Elevation: 20 m (66 ft).
  • Period of record: 1941 to 2026, 86 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

13 days at or beyond a record
Daily record high and record low at Oskarshamn, with 2026 drawn through them The band shows the record high and record low for each calendar day at Oskarshamn. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Oskarshamn. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Oskarshamn, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.1 C (53.8 F)-31.0 C (-23.8 F)3.4 C (38.1 F)-10.7 C (12.7 F)
Feb16.1 C (61.0 F)-34.6 C (-30.3 F)8.7 C (47.7 F)-19.5 C (-3.1 F)
Mar22.2 C (72.0 F)-28.8 C (-19.8 F)17.4 C (63.3 F)-5.1 C (22.8 F)
Apr27.2 C (81.0 F)-19.2 C (-2.6 F)21.1 C (70.0 F)-6.7 C (19.9 F)
May30.3 C (86.5 F)-7.0 C (19.4 F)28.6 C (83.5 F)-2.3 C (27.9 F)
Jun33.7 C (92.7 F)-1.8 C (28.8 F)32.5 C (90.5 F)6.2 C (43.2 F)
Jul34.8 C (94.6 F)1.4 C (34.5 F)32.0 C (89.6 F)7.5 C (45.5 F)
Aug33.2 C (91.8 F)0.2 C (32.4 F)30.5 C (86.9 F)6.5 C (43.7 F)
Sep28.9 C (84.0 F)-6.6 C (20.1 F)n/an/a
Oct24.5 C (76.1 F)-11.0 C (12.2 F)n/an/a
Nov17.0 C (62.6 F)-24.3 C (-11.7 F)n/an/a
Dec13.6 C (56.5 F)-26.0 C (-14.8 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Oskarshamn by the year they were set 1,464 records at Oskarshamn still stand. 1942 holds the most, with 58. 02040601941: 491942: 581943: 101944: 131945: 51946: 151947: 251948: 101949: 121950: 51951: 111952: 201953: 111954: 41955: 261956: 241957: 181958: 131959: 101960: 111961: 71962: 131963: 101964: 161965: 251966: 271967: 41968: 241969: 261970: 171971: 241972: 51973: 231974: 111975: 161976: 181977: 181978: 321979: 141980: 181981: 151982: 181983: 211984: 51985: 191986: 131987: 321988: 121989: 271990: 281991: 51992: 211993: 161994: 21995: 171996: 131997: 181998: 221999: 132000: 152001: 122002: 172003: 72004: 62005: 112006: 272007: 232008: 82009: 52010: 222011: 152012: 112013: 82014: 172015: 232016: 192017: 92018: 362019: 152020: 262021: 232022: 162023: 152024: 142025: 292026: 201941195019591968197719861995200420132022
1,464 records at Oskarshamn still stand. 1942 holds the most, with 58.
Standing records at Oskarshamn by the year they were set
Year setStanding records
194149
194258
194310
194413
19455
194615
194725
194810
194912
19505
195111
195220
195311
19544
195526
195624
195718
195813
195910
196011
19617
196213
196310
196416
196525
196627
19674
196824
196926
197017
197124
19725
197323
197411
197516
197618
197718
197832
197914
198018
198115
198218
198321
19845
198519
198613
198732
198812
198927
199028
19915
199221
199316
19942
199517
199613
199718
199822
199913
200015
200112
200217
20037
20046
200511
200627
200723
20088
20095
201022
201115
201211
20138
201417
201523
201619
20179
201836
201915
202026
202123
202216
202315
202414
202529
202620

All-Time Record Progression

9 new records
When Oskarshamn set new all-time records 9 all-time records were set at Oskarshamn between 14 September 1995 and 21 July 2022. Each dot is a new record. Record daily precipitationRecord high minimum temperatureRecord high maximum temperature14 September 1995: Record daily precipitation 70.1 mm (2.8 in)14 July 1999: Record high minimum temperature 19.0 C (66.2 F)2 August 2002: Record high minimum temperature 19.7 C (67.5 F)2 July 2003: Record daily precipitation 98.0 mm (3.9 in)11 July 2010: Record high maximum temperature 34.3 C (93.7 F)18 July 2018: Record high minimum temperature 20.0 C (68.0 F)28 July 2018: Record high minimum temperature 20.1 C (68.2 F)2 August 2018: Record high minimum temperature 20.9 C (69.6 F)21 July 2022: Record high maximum temperature 34.8 C (94.6 F)199520002005201020152020
9 all-time records were set at Oskarshamn between 14 September 1995 and 21 July 2022. Each dot is a new record.
When Oskarshamn set new all-time records
DateKindDetail
1995-09-14Record daily precipitationRecord daily precipitation 70.1 mm (2.8 in)
1999-07-14Record high minimum temperatureRecord high minimum temperature 19.0 C (66.2 F)
2002-08-02Record high minimum temperatureRecord high minimum temperature 19.7 C (67.5 F)
2003-07-02Record daily precipitationRecord daily precipitation 98.0 mm (3.9 in)
2010-07-11Record high maximum temperatureRecord high maximum temperature 34.3 C (93.7 F)
2018-07-18Record high minimum temperatureRecord high minimum temperature 20.0 C (68.0 F)
2018-07-28Record high minimum temperatureRecord high minimum temperature 20.1 C (68.2 F)
2018-08-02Record high minimum temperatureRecord high minimum temperature 20.9 C (69.6 F)
2022-07-21Record high maximum temperatureRecord high maximum temperature 34.8 C (94.6 F)

Wettest Day of Each Month

Jul: 98.0 mm (3.9 in)
Record daily precipitation for each month at Oskarshamn The wettest day on record for each calendar month at Oskarshamn. The most was 98.0 mm (3.9 in) on 2 July 2003. 0255075100 Jan: 50.0 mm (2.0 in), 3 January 1985 Jan Feb: 28.0 mm (1.1 in), 9 February 1955 Feb Mar: 25.7 mm (1.0 in), 5 March 2017 Mar Apr: 56.6 mm (2.2 in), 10 April 1959 Apr May: 39.6 mm (1.6 in), 27 May 1976 May Jun: 46.3 mm (1.8 in), 26 June 2007 Jun Jul: 98.0 mm (3.9 in), 2 July 2003 Jul Aug: 62.5 mm (2.5 in), 17 August 2016 Aug Sep: 70.1 mm (2.8 in), 14 September 1995 Sep Oct: 47.3 mm (1.9 in), 13 October 1964 Oct Nov: 46.5 mm (1.8 in), 5 November 2014 Nov Dec: 48.1 mm (1.9 in), 14 December 1999 Dec
The wettest day on record for each calendar month at Oskarshamn. The most was 98.0 mm (3.9 in) on 2 July 2003.
Record daily precipitation for each month at Oskarshamn
MonthRecord daily precipitation (mm)Date
Jan50.0 mm (2.0 in)3 January 1985
Feb28.0 mm (1.1 in)9 February 1955
Mar25.7 mm (1.0 in)5 March 2017
Apr56.6 mm (2.2 in)10 April 1959
May39.6 mm (1.6 in)27 May 1976
Jun46.3 mm (1.8 in)26 June 2007
Jul98.0 mm (3.9 in)2 July 2003
Aug62.5 mm (2.5 in)17 August 2016
Sep70.1 mm (2.8 in)14 September 1995
Oct47.3 mm (1.9 in)13 October 1964
Nov46.5 mm (1.8 in)5 November 2014
Dec48.1 mm (1.9 in)14 December 1999

Period of Record Coverage

1941 to 2026
Days with data per year at Oskarshamn 86 years of record at Oskarshamn, 1941 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1994, 1995, 2026. 1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 364 of 365 days1955: 365 of 365 days1956: 365 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 181 of 365 days1995: 326 of 365 days1996: 357 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 359 of 365 days2004: 354 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 351 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 238 of 365 days195019651980199520102025
86 years of record at Oskarshamn, 1941 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1994, 1995, 2026.
Days with data per year at Oskarshamn
YearDays with dataShare of yearComplete
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954364100%Yes
1955365100%Yes
1956365100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
199418150%No
199532689%No
199635798%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
200335998%Yes
200435497%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
201435196%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202623865%No

Latest Records

20
Latest records at Oskarshamn
DateStationRecordValueBeat old record byOld record stoodSignificance
14 August 2026Oskarshamn, SEdaily high max30.3 C (86.5 F)0.8 C (1.4 F)5 years11 of 100 (Routine)
31 July 2026Oskarshamn, SEdaily high min18.8 C (65.8 F)0.4 C (0.7 F)77 years32 of 100 (Routine)
30 July 2026Oskarshamn, SEdaily high max29.9 C (85.8 F)1.3 C (2.3 F)27 years19 of 100 (Routine)
20 July 2026Oskarshamn, SEdaily low max15.2 C (59.4 F)1.3 C (2.3 F)47 years25 of 100 (Routine)
18 July 2026Oskarshamn, SEdaily rain48.0 mm (1.9 in)23.7 mm (0.9 in)79 years63 of 100 (Major)
16 July 2026Oskarshamn, SEdaily high max32.0 C (89.6 F)1.6 C (2.9 F)8 years14 of 100 (Routine)
29 June 2026Oskarshamn, SEmonthly high min20.2 C (68.4 F)0.4 C (0.7 F)0 years19 of 100 (Routine)
29 June 2026Oskarshamn, SEdaily high max30.5 C (86.9 F)0.2 C (0.4 F)7 years10 of 100 (Routine)
28 June 2026Oskarshamn, SEdaily high max31.8 C (89.2 F)2.3 C (4.1 F)52 years29 of 100 (Routine)
28 June 2026Oskarshamn, SEmonthly high min19.8 C (67.6 F)1.3 C (2.3 F)10 years24 of 100 (Routine)
27 June 2026Oskarshamn, SEdaily high max32.5 C (90.5 F)2.2 C (4.0 F)4 years14 of 100 (Routine)
5 June 2026Oskarshamn, SEdaily high min13.3 C (55.9 F)0.7 C (1.3 F)84 years35 of 100 (Notable)
25 May 2026Oskarshamn, SEdaily high max26.9 C (80.4 F)0.3 C (0.5 F)36 years19 of 100 (Routine)
23 May 2026Oskarshamn, SEdaily high max26.6 C (79.9 F)0.9 C (1.6 F)36 years21 of 100 (Routine)
3 May 2026Oskarshamn, SEdaily high min10.3 C (50.5 F)1.4 C (2.5 F)17 years16 of 100 (Routine)
2 May 2026Oskarshamn, SEdaily high max27.1 C (80.8 F)3.3 C (5.9 F)60 years33 of 100 (Routine)
1 May 2026Oskarshamn, SEdaily high max28.6 C (83.5 F)5.1 C (9.2 F)39 years30 of 100 (Routine)
19 March 2026Oskarshamn, SEdaily high min4.0 C (39.2 F)0.2 C (0.4 F)16 years12 of 100 (Routine)
14 March 2026Oskarshamn, SEdaily rain17.7 mm (0.7 in)5.3 mm (0.21 in)65 years20 of 100 (Routine)
13 March 2026Oskarshamn, SEdaily high min4.8 C (40.6 F)1.0 C (1.8 F)77 years32 of 100 (Routine)

Climate Trend

82 complete years, 1941 to 2025
Annual mean temperature at Oskarshamn as warming stripes, 1941 to 2025 One stripe for each of 82 complete years at Oskarshamn, 1941 to 2025. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1942, at 4.0 C (39.3 F), and the warmest was 2020, at 9.5 C (49.1 F). The strongest colour marks a difference of 2.9 C (5.2 F). 1941: 4.6 C, -2.4 C from the station mean1942: 4.0 C, -2.9 C from the station mean1943: 7.3 C, +0.4 C from the station mean1944: 6.6 C, -0.4 C from the station mean1945: 6.8 C, -0.1 C from the station mean1946: 6.3 C, -0.7 C from the station mean1947: 5.6 C, -1.3 C from the station mean1948: 6.9 C, 0.0 C from the station mean1949: 8.1 C, +1.1 C from the station mean1950: 6.9 C, 0.0 C from the station mean1951: 6.7 C, -0.2 C from the station mean1952: 5.5 C, -1.4 C from the station mean1953: 7.6 C, +0.7 C from the station mean1954: 6.2 C, -0.8 C from the station mean1955: 5.5 C, -1.4 C from the station mean1956: 5.1 C, -1.8 C from the station mean1957: 6.7 C, -0.3 C from the station mean1958: 5.6 C, -1.3 C from the station mean1959: 7.3 C, +0.4 C from the station mean1960: 6.0 C, -0.9 C from the station mean1961: 7.1 C, +0.2 C from the station mean1962: 5.3 C, -1.6 C from the station mean1963: 4.9 C, -2.0 C from the station mean1964: 6.2 C, -0.8 C from the station mean1965: 5.3 C, -1.7 C from the station mean1966: 5.5 C, -1.4 C from the station mean1967: 6.8 C, -0.1 C from the station mean1968: 6.3 C, -0.6 C from the station mean1969: 5.8 C, -1.1 C from the station mean1970: 5.0 C, -2.0 C from the station mean1971: 6.5 C, -0.4 C from the station mean1972: 6.8 C, -0.1 C from the station mean1973: 6.7 C, -0.2 C from the station mean1974: 7.0 C, 0.0 C from the station mean1975: 7.6 C, +0.7 C from the station mean1976: 5.6 C, -1.3 C from the station mean1977: 6.2 C, -0.7 C from the station mean1978: 5.8 C, -1.1 C from the station mean1979: 5.4 C, -1.5 C from the station mean1980: 5.4 C, -1.5 C from the station mean1981: 5.6 C, -1.3 C from the station mean1982: 6.5 C, -0.4 C from the station mean1983: 7.5 C, +0.6 C from the station mean1984: 7.2 C, +0.3 C from the station mean1985: 4.8 C, -2.2 C from the station mean1986: 5.8 C, -1.1 C from the station mean1987: 4.9 C, -2.0 C from the station mean1988: 6.6 C, -0.3 C from the station mean1989: 8.0 C, +1.1 C from the station mean1990: 8.3 C, +1.4 C from the station mean1991: 7.0 C, +0.1 C from the station mean1992: 7.3 C, +0.4 C from the station mean1993: 6.6 C, -0.3 C from the station mean1996: 6.3 C, -0.6 C from the station mean1997: 7.7 C, +0.8 C from the station mean1998: 7.1 C, +0.2 C from the station mean1999: 8.0 C, +1.1 C from the station mean2000: 8.5 C, +1.6 C from the station mean2001: 7.5 C, +0.6 C from the station mean2002: 8.1 C, +1.2 C from the station mean2003: 7.5 C, +0.6 C from the station mean2005: 7.5 C, +0.6 C from the station mean2006: 8.2 C, +1.3 C from the station mean2007: 8.3 C, +1.3 C from the station mean2008: 8.4 C, +1.5 C from the station mean2009: 7.5 C, +0.6 C from the station mean2010: 6.2 C, -0.7 C from the station mean2011: 8.3 C, +1.4 C from the station mean2012: 7.3 C, +0.3 C from the station mean2013: 7.5 C, +0.5 C from the station mean2014: 9.0 C, +2.1 C from the station mean2015: 8.8 C, +1.8 C from the station mean2016: 8.2 C, +1.3 C from the station mean2017: 8.2 C, +1.3 C from the station mean2018: 8.9 C, +1.9 C from the station mean2019: 8.9 C, +1.9 C from the station mean2020: 9.5 C, +2.6 C from the station mean2021: 8.2 C, +1.3 C from the station mean2022: 8.9 C, +1.9 C from the station mean2023: 8.3 C, +1.4 C from the station mean2024: 8.8 C, +1.9 C from the station mean2025: 9.2 C, +2.3 C from the station mean194119501960197019801990200020102020
One stripe for each of 82 complete years at Oskarshamn, 1941 to 2025. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1942, at 4.0 C (39.3 F), and the warmest was 2020, at 9.5 C (49.1 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Oskarshamn as warming stripes, 1941 to 2025
YearAnnual mean temperatureDifference from the station mean
19414.6 C-2.37 C
19424.0 C-2.89 C
19437.3 C+0.41 C
19446.6 C-0.37 C
19456.8 C-0.08 C
19466.3 C-0.66 C
19475.6 C-1.33 C
19486.9 C+0.00 C
19498.1 C+1.14 C
19506.9 C-0.02 C
19516.7 C-0.24 C
19525.5 C-1.44 C
19537.6 C+0.72 C
19546.2 C-0.76 C
19555.5 C-1.42 C
19565.1 C-1.83 C
19576.7 C-0.26 C
19585.6 C-1.28 C
19597.3 C+0.39 C
19606.0 C-0.89 C
19617.1 C+0.19 C
19625.3 C-1.58 C
19634.9 C-1.99 C
19646.2 C-0.77 C
19655.3 C-1.67 C
19665.5 C-1.43 C
19676.8 C-0.12 C
19686.3 C-0.58 C
19695.8 C-1.12 C
19705.0 C-1.96 C
19716.5 C-0.38 C
19726.8 C-0.11 C
19736.7 C-0.23 C
19747.0 C+0.03 C
19757.6 C+0.71 C
19765.6 C-1.29 C
19776.2 C-0.72 C
19785.8 C-1.10 C
19795.4 C-1.53 C
19805.4 C-1.51 C
19815.6 C-1.32 C
19826.5 C-0.41 C
19837.5 C+0.56 C
19847.2 C+0.32 C
19854.8 C-2.16 C
19865.8 C-1.14 C
19874.9 C-2.05 C
19886.6 C-0.28 C
19898.0 C+1.05 C
19908.3 C+1.37 C
19917.0 C+0.05 C
19927.3 C+0.42 C
19936.6 C-0.31 C
19966.3 C-0.65 C
19977.7 C+0.81 C
19987.1 C+0.20 C
19998.0 C+1.08 C
20008.5 C+1.55 C
20017.5 C+0.58 C
20028.1 C+1.20 C
20037.5 C+0.58 C
20057.5 C+0.56 C
20068.2 C+1.31 C
20078.3 C+1.34 C
20088.4 C+1.45 C
20097.5 C+0.60 C
20106.2 C-0.74 C
20118.3 C+1.37 C
20127.3 C+0.33 C
20137.5 C+0.53 C
20149.0 C+2.06 C
20158.8 C+1.84 C
20168.2 C+1.32 C
20178.2 C+1.32 C
20188.9 C+1.94 C
20198.9 C+1.93 C
20209.5 C+2.60 C
20218.2 C+1.29 C
20228.9 C+1.94 C
20238.3 C+1.41 C
20248.8 C+1.91 C
20259.2 C+2.28 C

The annual mean temperature here has risen by 0.3 C (0.3 to 0.4) per decade over 1941 to 2025. In Fahrenheit: 0.6 F (0.5 to 0.8) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Oskarshamn
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.3 to 0.4) per decade0.6 F (0.5 to 0.8) per decade1941 to 202582Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.6 F (0.4 to 0.7) per decade1941 to 202582Rise
Mean daily minimum0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.8) per decade1941 to 202582Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1941 to 2026
Yearly extremes at Oskarshamn: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.8 C (94.6 F)202230.1 C (86.1 F)86
Coldest night (TNn)-34.6 C (-30.3 F)1966-20.2 C (-4.5 F)86
Wettest day (Rx1day)98.0 mm (3.9 in)200331.8 mm (1.3 in)82
Wettest five days (Rx5day)169.4 mm (6.7 in)200354.2 mm (2.1 in)82
Longest dry spell (CDD)50 days199224 days82

Hottest day (TXx)

Hottest day (TXx) at Oskarshamn by year The hottest day of the year at Oskarshamn, 1941 to 2026. The record is 34.8 C (94.6 F) in 2022, marked on the chart; the median year is 30.1 C (86.1 F). 2527.53032.5351960198020002020Record: 34.8 C (94.6 F) in 2022
The hottest day of the year at Oskarshamn, 1941 to 2026. The record is 34.8 C (94.6 F) in 2022, marked on the chart; the median year is 30.1 C (86.1 F).
Hottest day (TXx) at Oskarshamn by year
YearHottest day (TXx)
194132.6 C (90.7 F)
194228.2 C (82.8 F)
194332.0 C (89.6 F)
194430.0 C (86.0 F)
194530.4 C (86.7 F)
194627.4 C (81.3 F)
194733.2 C (91.8 F)
194832.0 C (89.6 F)
194932.2 C (90.0 F)
195030.2 C (86.4 F)
195126.8 C (80.2 F)
195228.0 C (82.4 F)
195330.0 C (86.0 F)
195429.0 C (84.2 F)
195533.0 C (91.4 F)
195629.2 C (84.6 F)
195730.8 C (87.4 F)
195829.0 C (84.2 F)
195933.2 C (91.8 F)
196025.5 C (77.9 F)
196130.0 C (86.0 F)
196227.0 C (80.6 F)
196327.2 C (81.0 F)
196431.5 C (88.7 F)
196525.0 C (77.0 F)
196628.6 C (83.5 F)
196729.0 C (84.2 F)
196830.8 C (87.4 F)
196929.6 C (85.3 F)
197033.2 C (91.8 F)
197129.4 C (84.9 F)
197230.2 C (86.4 F)
197329.5 C (85.1 F)
197426.2 C (79.2 F)
197532.8 C (91.0 F)
197631.5 C (88.7 F)
197729.0 C (84.2 F)
197829.6 C (85.3 F)
197928.5 C (83.3 F)
198026.4 C (79.5 F)
198127.3 C (81.1 F)
198231.5 C (88.7 F)
198332.0 C (89.6 F)
198426.2 C (79.2 F)
198528.0 C (82.4 F)
198633.0 C (91.4 F)
198727.6 C (81.7 F)
198829.0 C (84.2 F)
198932.0 C (89.6 F)
199030.5 C (86.9 F)
199131.6 C (88.9 F)
199229.5 C (85.1 F)
199329.0 C (84.2 F)
199428.4 C (83.1 F)
199531.7 C (89.1 F)
199627.7 C (81.9 F)
199732.3 C (90.1 F)
199828.5 C (83.3 F)
199929.7 C (85.5 F)
200032.8 C (91.0 F)
200130.7 C (87.3 F)
200230.1 C (86.2 F)
200329.4 C (84.9 F)
200428.5 C (83.3 F)
200531.8 C (89.2 F)
200631.1 C (88.0 F)
200730.7 C (87.3 F)
200830.4 C (86.7 F)
200929.6 C (85.3 F)
201034.3 C (93.7 F)
201128.1 C (82.6 F)
201229.8 C (85.6 F)
201327.5 C (81.5 F)
201430.4 C (86.7 F)
201531.3 C (88.3 F)
201630.2 C (86.4 F)
201730.1 C (86.2 F)
201833.2 C (91.8 F)
201933.7 C (92.7 F)
202031.3 C (88.3 F)
202132.9 C (91.2 F)
202234.8 C (94.6 F)
202329.1 C (84.4 F)
202428.1 C (82.6 F)
202533.4 C (92.1 F)
202632.5 C (90.5 F)

Coldest night (TNn)

Coldest night (TNn) at Oskarshamn by year The coldest night of the year at Oskarshamn, 1941 to 2026. The record is -34.6 C (-30.3 F) in 1966, marked on the chart; the median year is -20.2 C (-4.5 F). -40-30-20-1001960198020002020Record: -34.6 C (-30.3 F) in 1966
The coldest night of the year at Oskarshamn, 1941 to 2026. The record is -34.6 C (-30.3 F) in 1966, marked on the chart; the median year is -20.2 C (-4.5 F).
Coldest night (TNn) at Oskarshamn by year
YearColdest night (TNn)
1941-28.0 C (-18.4 F)
1942-32.6 C (-26.7 F)
1943-25.0 C (-13.0 F)
1944-18.0 C (-0.4 F)
1945-21.5 C (-6.7 F)
1946-24.2 C (-11.6 F)
1947-28.2 C (-18.8 F)
1948-26.0 C (-14.8 F)
1949-12.4 C (9.7 F)
1950-18.0 C (-0.4 F)
1951-16.0 C (3.2 F)
1952-19.6 C (-3.3 F)
1953-23.0 C (-9.4 F)
1954-19.0 C (-2.2 F)
1955-24.8 C (-12.6 F)
1956-29.8 C (-21.6 F)
1957-16.8 C (1.8 F)
1958-26.8 C (-16.2 F)
1959-19.6 C (-3.3 F)
1960-26.2 C (-15.2 F)
1961-23.0 C (-9.4 F)
1962-22.1 C (-7.8 F)
1963-27.2 C (-17.0 F)
1964-24.3 C (-11.7 F)
1965-24.9 C (-12.8 F)
1966-34.6 C (-30.3 F)
1967-21.9 C (-7.4 F)
1968-25.0 C (-13.0 F)
1969-22.3 C (-8.1 F)
1970-26.1 C (-15.0 F)
1971-23.5 C (-10.3 F)
1972-19.9 C (-3.8 F)
1973-20.0 C (-4.0 F)
1974-12.3 C (9.9 F)
1975-15.1 C (4.8 F)
1976-23.0 C (-9.4 F)
1977-18.1 C (-0.6 F)
1978-27.5 C (-17.5 F)
1979-24.8 C (-12.6 F)
1980-27.8 C (-18.0 F)
1981-26.0 C (-14.8 F)
1982-24.5 C (-12.1 F)
1983-16.0 C (3.2 F)
1984-14.5 C (5.9 F)
1985-23.5 C (-10.3 F)
1986-25.5 C (-13.9 F)
1987-24.0 C (-11.2 F)
1988-19.0 C (-2.2 F)
1989-21.0 C (-5.8 F)
1990-9.4 C (15.1 F)
1991-21.0 C (-5.8 F)
1992-14.5 C (5.9 F)
1993-16.3 C (2.7 F)
1994-22.4 C (-8.3 F)
1995-21.7 C (-7.1 F)
1996-21.0 C (-5.8 F)
1997-19.8 C (-3.6 F)
1998-17.9 C (-0.2 F)
1999-17.1 C (1.2 F)
2000-16.6 C (2.1 F)
2001-22.0 C (-7.6 F)
2002-18.5 C (-1.3 F)
2003-20.2 C (-4.4 F)
2004-21.1 C (-6.0 F)
2005-19.2 C (-2.6 F)
2006-21.2 C (-6.2 F)
2007-19.7 C (-3.5 F)
2008-9.5 C (14.9 F)
2009-19.5 C (-3.1 F)
2010-24.7 C (-12.5 F)
2011-18.2 C (-0.8 F)
2012-24.7 C (-12.5 F)
2013-20.3 C (-4.5 F)
2014-14.7 C (5.5 F)
2015-9.6 C (14.7 F)
2016-16.5 C (2.3 F)
2017-16.8 C (1.8 F)
2018-13.8 C (7.2 F)
2019-11.2 C (11.8 F)
2020-7.5 C (18.5 F)
2021-17.4 C (0.7 F)
2022-18.2 C (-0.8 F)
2023-16.0 C (3.2 F)
2024-20.0 C (-4.0 F)
2025-13.1 C (8.4 F)
2026-19.5 C (-3.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Oskarshamn by year The wettest day of the year at Oskarshamn, 1941 to 2026. The record is 98.0 mm (3.9 in) in 2003, marked on the chart; the median year is 31.8 mm (1.3 in). 02550751001960198020002020Record: 98.0 mm (3.9 in) in 2003
The wettest day of the year at Oskarshamn, 1941 to 2026. The record is 98.0 mm (3.9 in) in 2003, marked on the chart; the median year is 31.8 mm (1.3 in).
Wettest day (Rx1day) at Oskarshamn by year
YearWettest day (Rx1day)
1941n/a
1942n/a
1943n/a
1944n/a
194554.8 mm (2.2 in)
194635.0 mm (1.4 in)
194742.6 mm (1.7 in)
194827.0 mm (1.1 in)
194927.2 mm (1.1 in)
195033.0 mm (1.3 in)
195129.8 mm (1.2 in)
195244.7 mm (1.8 in)
195332.0 mm (1.3 in)
195424.2 mm (1.0 in)
195535.2 mm (1.4 in)
195644.0 mm (1.7 in)
195727.2 mm (1.1 in)
195826.2 mm (1.0 in)
195956.6 mm (2.2 in)
196041.5 mm (1.6 in)
196123.9 mm (0.9 in)
196227.2 mm (1.1 in)
196323.0 mm (0.9 in)
196447.3 mm (1.9 in)
196535.8 mm (1.4 in)
196646.0 mm (1.8 in)
196733.5 mm (1.3 in)
196839.5 mm (1.6 in)
196922.2 mm (0.9 in)
197037.0 mm (1.5 in)
197150.1 mm (2.0 in)
197232.2 mm (1.3 in)
197332.0 mm (1.3 in)
197437.5 mm (1.5 in)
197524.5 mm (1.0 in)
197639.6 mm (1.6 in)
197714.0 mm (0.6 in)
197826.0 mm (1.0 in)
197931.5 mm (1.2 in)
198026.8 mm (1.1 in)
198125.5 mm (1.0 in)
198225.0 mm (1.0 in)
198332.0 mm (1.3 in)
198427.0 mm (1.1 in)
198550.0 mm (2.0 in)
198630.5 mm (1.2 in)
198730.0 mm (1.2 in)
198828.2 mm (1.1 in)
198922.0 mm (0.9 in)
199035.0 mm (1.4 in)
199117.8 mm (0.7 in)
199231.5 mm (1.2 in)
199338.0 mm (1.5 in)
199419.8 mm (0.8 in)
199570.1 mm (2.8 in)
199638.6 mm (1.5 in)
199717.2 mm (0.7 in)
199831.3 mm (1.2 in)
199948.1 mm (1.9 in)
200029.2 mm (1.1 in)
200139.7 mm (1.6 in)
200229.3 mm (1.2 in)
200398.0 mm (3.9 in)
200466.0 mm (2.6 in)
200524.6 mm (1.0 in)
200624.9 mm (1.0 in)
200746.3 mm (1.8 in)
200834.0 mm (1.3 in)
200926.6 mm (1.0 in)
201043.2 mm (1.7 in)
201122.4 mm (0.9 in)
201234.5 mm (1.4 in)
201317.7 mm (0.7 in)
201446.5 mm (1.8 in)
201525.4 mm (1.0 in)
201662.5 mm (2.5 in)
201742.7 mm (1.7 in)
201833.6 mm (1.3 in)
201921.8 mm (0.9 in)
202031.1 mm (1.2 in)
202127.3 mm (1.1 in)
202230.2 mm (1.2 in)
202327.0 mm (1.1 in)
202446.0 mm (1.8 in)
202529.7 mm (1.2 in)
202649.1 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Oskarshamn by year The wettest five days of the year at Oskarshamn, 1941 to 2026. The record is 169.4 mm (6.7 in) in 2003, marked on the chart; the median year is 54.2 mm (2.1 in). 0501001502001960198020002020Record: 169.4 mm (6.7 in) in 2003
The wettest five days of the year at Oskarshamn, 1941 to 2026. The record is 169.4 mm (6.7 in) in 2003, marked on the chart; the median year is 54.2 mm (2.1 in).
Wettest five days (Rx5day) at Oskarshamn by year
YearWettest five days (Rx5day)
1941n/a
1942n/a
1943n/a
1944n/a
194596.7 mm (3.8 in)
194680.8 mm (3.2 in)
1947130.5 mm (5.1 in)
194844.8 mm (1.8 in)
194952.9 mm (2.1 in)
195053.8 mm (2.1 in)
195170.9 mm (2.8 in)
195255.6 mm (2.2 in)
195362.9 mm (2.5 in)
195445.5 mm (1.8 in)
195551.8 mm (2.0 in)
195663.0 mm (2.5 in)
195739.2 mm (1.5 in)
195851.2 mm (2.0 in)
195973.4 mm (2.9 in)
196070.5 mm (2.8 in)
196156.7 mm (2.2 in)
196238.5 mm (1.5 in)
196350.6 mm (2.0 in)
196463.5 mm (2.5 in)
196541.0 mm (1.6 in)
196661.0 mm (2.4 in)
196747.2 mm (1.9 in)
196843.7 mm (1.7 in)
196959.3 mm (2.3 in)
197061.1 mm (2.4 in)
197184.1 mm (3.3 in)
197250.1 mm (2.0 in)
197365.8 mm (2.6 in)
197471.7 mm (2.8 in)
197544.8 mm (1.8 in)
197654.6 mm (2.1 in)
197727.8 mm (1.1 in)
197834.5 mm (1.4 in)
197950.4 mm (2.0 in)
198043.1 mm (1.7 in)
198137.5 mm (1.5 in)
198232.2 mm (1.3 in)
198345.8 mm (1.8 in)
198448.7 mm (1.9 in)
1985100.1 mm (3.9 in)
198651.0 mm (2.0 in)
198766.5 mm (2.6 in)
198841.9 mm (1.6 in)
198940.5 mm (1.6 in)
199048.6 mm (1.9 in)
199138.8 mm (1.5 in)
199241.5 mm (1.6 in)
199361.4 mm (2.4 in)
199446.6 mm (1.8 in)
1995117.3 mm (4.6 in)
199663.5 mm (2.5 in)
199739.0 mm (1.5 in)
199844.6 mm (1.8 in)
199976.7 mm (3.0 in)
200042.5 mm (1.7 in)
200174.1 mm (2.9 in)
200280.8 mm (3.2 in)
2003169.4 mm (6.7 in)
2004110.3 mm (4.3 in)
200545.0 mm (1.8 in)
200655.1 mm (2.2 in)
200773.2 mm (2.9 in)
200862.4 mm (2.5 in)
200936.2 mm (1.4 in)
2010112.0 mm (4.4 in)
201135.7 mm (1.4 in)
201264.4 mm (2.5 in)
201335.7 mm (1.4 in)
201454.5 mm (2.1 in)
201565.4 mm (2.6 in)
201686.6 mm (3.4 in)
201764.1 mm (2.5 in)
201852.2 mm (2.1 in)
201929.3 mm (1.2 in)
202063.3 mm (2.5 in)
202150.4 mm (2.0 in)
202254.6 mm (2.1 in)
202350.7 mm (2.0 in)
202458.0 mm (2.3 in)
202537.9 mm (1.5 in)
202687.0 mm (3.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Oskarshamn by year The longest dry spell of the year at Oskarshamn, 1941 to 2026. The record is 50 days in 1992, marked on the chart; the median year is 24 days. 10203040501960198020002020Record: 50 days in 1992
The longest dry spell of the year at Oskarshamn, 1941 to 2026. The record is 50 days in 1992, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Oskarshamn by year
YearLongest dry spell (CDD)
1941n/a
1942n/a
1943n/a
1944n/a
194522 days
194634 days
194739 days
194827 days
194923 days
195018 days
195124 days
195223 days
195333 days
195419 days
195535 days
195625 days
195716 days
195825 days
195940 days
196025 days
196143 days
196221 days
196319 days
196424 days
196519 days
196620 days
196720 days
196821 days
196939 days
197017 days
197120 days
197219 days
197323 days
197423 days
197537 days
197630 days
197717 days
197817 days
197918 days
198021 days
198125 days
198226 days
198326 days
198435 days
198520 days
198627 days
198727 days
198816 days
198942 days
199027 days
199122 days
199250 days
199321 days
199414 days
199529 days
199626 days
199734 days
199817 days
199915 days
200027 days
200115 days
200241 days
200331 days
200415 days
200546 days
200625 days
200721 days
200827 days
200936 days
201019 days
201132 days
201218 days
201320 days
201419 days
201528 days
201625 days
201719 days
201826 days
201939 days
202028 days
202123 days
202238 days
202331 days
202419 days
202522 days
202618 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

82 years with a frost

Across 82 years with a frost, the median last spring frost at Oskarshamn falls on 20 May and the median first autumn frost on 29 September, which leaves a median of 129 days between them.

In 1993 to 2025 the median growing season was 152 days. That is 29 days more than in 1941 to 1970.

Fitted over all years, the growing season changes by +4.3 days per decade at this station.

Frost dates and growing season at Oskarshamn
MeasureMedian, all yearsEarliest period (1941 to 1970)Recent period (1993 to 2025)Recent against earliestFitted trend
Last spring frost20 May24 May9 May15 days earlier-2.5 days per decade
First autumn frost29 September24 September8 October14 days later+1.8 days per decade
Growing days129 days123 days152 days29 days more+4.3 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

80 years, 1945 to 2025

A day with at least 31.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 82.2 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Oskarshamn: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years31.9 mm (1.3 in)
5 years42.7 mm (1.7 in)
10 years50.8 mm (2.0 in)
25 years62.2 mm (2.4 in)
50 years71.8 mm (2.8 in)
100 years82.2 mm (3.2 in)Longer than the 80 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 80 years of values from 1945 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 98.0 mm (3.9 in) in 2003; 70.1 mm (2.8 in) in 1995; 66.0 mm (2.6 in) in 2004.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Oskarshamn, at 1996. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1996 ran 0.3 C (0.5 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Oskarshamn, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1996+0.3+0.5likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Oskarshamn had a mean temperature of 8.5 C (47.4 F) and 533.7 mm (21.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Teterow (Germany, 459 km away), Ueckermunde (Germany, 419 km away) and Gardelegen (Germany, 618 km away).

Climate twins of Oskarshamn: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
TeterowGermany459 km (285 mi)8.3 C (47.0 F)544.0 mm (21.4 in)0.53
UeckermundeGermany419 km (260 mi)8.3 C (46.9 F)547.9 mm (21.6 in)0.54
GardelegenGermany618 km (384 mi)8.6 C (47.5 F)562.4 mm (22.1 in)0.57

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Oskarshamn standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Oskarshamn threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).