Sweers Island Weather Records (ASN00029139)

Record envelope, standing records and threshold days for Sweers Island (ASN00029139), Australia, with 134 years of record.

Key Facts for Sweers Island

Sweers Island (ASN00029139) is a weather station in Australia at -17.11 latitude and 139.60 longitude, 4 m (13 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
1,464 records set at Sweers Island still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Sweers Island set a daily record precipitation of 10.0 mm (0.4 in) on 25 June 2026.

About the Station

Location: Australia, -17.11 latitude, 139.60 longitude.
Elevation: 4 m (13 ft).
Period of record: 1893 to 2026, 134 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

2 days at or beyond a record

The band shows the record high and record low for each calendar day at Sweers Island. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Sweers Island, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	39.0 C (102.2 F)	15.2 C (59.4 F)	35.2 C (95.4 F)	25.0 C (77.0 F)
Feb	38.1 C (100.6 F)	20.6 C (69.1 F)	33.0 C (91.4 F)	26.0 C (78.8 F)
Mar	37.9 C (100.2 F)	19.5 C (67.1 F)	32.8 C (91.0 F)	22.7 C (72.9 F)
Apr	36.0 C (96.8 F)	14.2 C (57.6 F)	33.4 C (92.1 F)	22.1 C (71.8 F)
May	33.7 C (92.7 F)	12.2 C (54.0 F)	30.9 C (87.6 F)	15.3 C (59.5 F)
Jun	32.0 C (89.6 F)	11.2 C (52.2 F)	26.5 C (79.7 F)	15.6 C (60.1 F)
Jul	30.7 C (87.3 F)	9.1 C (48.4 F)	27.6 C (81.7 F)	17.2 C (63.0 F)
Aug	32.8 C (91.0 F)	10.7 C (51.3 F)	30.2 C (86.4 F)	16.1 C (61.0 F)
Sep	35.8 C (96.4 F)	14.0 C (57.2 F)	30.2 C (86.4 F)	20.1 C (68.2 F)
Oct	38.5 C (101.3 F)	18.9 C (66.0 F)	31.2 C (88.2 F)	21.2 C (70.2 F)
Nov	39.2 C (102.6 F)	18.0 C (64.4 F)	n/a	n/a
Dec	39.5 C (103.1 F)	18.2 C (64.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sweers Island still stand. 2016 holds the most, with 84.

Standing records at Sweers Island by the year they were set
Year set	Standing records
2001	37
2002	50
2003	56
2004	65
2005	52
2006	56
2007	63
2008	56
2009	56
2010	80
2011	66
2012	47
2013	55
2014	51
2015	72
2016	84
2017	57
2018	50
2019	42
2020	58
2021	55
2022	80
2023	45
2024	74
2025	53
2026	4

Wettest Day of Each Month

Mar: 280.0 mm (11.0 in)

The wettest day on record for each calendar month at Sweers Island. The most was 280.0 mm (11.0 in) on 18 March 2025.

Record daily precipitation for each month at Sweers Island
Month	Record daily precipitation (mm)	Date
Jan	223.0 mm (8.8 in)	4 January 2021
Feb	227.0 mm (8.9 in)	16 February 2024
Mar	280.0 mm (11.0 in)	18 March 2025
Apr	171.0 mm (6.7 in)	25 April 2022
May	57.0 mm (2.2 in)	12 May 2007
Jun	42.4 mm (1.7 in)	21 June 1894
Jul	23.4 mm (0.9 in)	14 July 2006
Aug	21.8 mm (0.9 in)	19 August 1893
Sep	55.9 mm (2.2 in)	18 September 1895
Oct	35.0 mm (1.4 in)	30 October 2007
Nov	128.8 mm (5.1 in)	24 November 1895
Dec	181.4 mm (7.1 in)	31 December 1897

Period of Record Coverage

2001 to 2026

26 years of record at Sweers Island, 2001 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2001, 2024, 2026.

Days with data per year at Sweers Island
Year	Days with data	Share of year	Complete
2001	134	37%	No
2002	365	100%	Yes
2003	363	99%	Yes
2004	365	100%	Yes
2005	356	98%	Yes
2006	340	93%	Yes
2007	364	100%	Yes
2008	363	99%	Yes
2009	365	100%	Yes
2010	363	99%	Yes
2011	365	100%	Yes
2012	365	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	363	99%	Yes
2016	365	100%	Yes
2017	363	99%	Yes
2018	363	99%	Yes
2019	363	99%	Yes
2020	362	99%	Yes
2021	364	100%	Yes
2022	354	97%	Yes
2023	357	98%	Yes
2024	280	77%	No
2025	342	94%	Yes
2026	187	51%	No

Latest Records

Latest records at Sweers Island
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 June 2026	Sweers Island, AU	daily rain	10.0 mm (0.4 in)	3.0 mm (0.12 in)	19 years	18 of 100 (Routine)
10 May 2026	Sweers Island, AU	daily rain	6.0 mm (0.24 in)	2.0 mm (0.08 in)	4 years	13 of 100 (Routine)
20 April 2026	Sweers Island, AU	daily rain	18.5 mm (0.7 in)	16.7 mm (0.7 in)	129 years	20 of 100 (Routine)

Climate Trend

21 complete years, 2002 to 2023

One stripe for each of 21 complete years at Sweers Island, 2002 to 2023. Blue stripes are years cooler than the station's own mean of 27.0 C (80.6 F); red stripes are warmer. The coolest year was 2011, at 26.0 C (78.7 F), and the warmest was 2013, at 27.6 C (81.6 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Sweers Island as warming stripes, 2002 to 2023
Year	Annual mean temperature	Difference from the station mean
2002	26.8 C	-0.16 C
2003	27.2 C	+0.17 C
2004	26.8 C	-0.17 C
2005	27.5 C	+0.54 C
2007	26.6 C	-0.35 C
2008	26.8 C	-0.22 C
2009	26.8 C	-0.14 C
2010	27.0 C	-0.03 C
2011	26.0 C	-1.01 C
2012	26.3 C	-0.66 C
2013	27.6 C	+0.57 C
2014	26.8 C	-0.20 C
2015	26.9 C	-0.04 C
2016	27.5 C	+0.56 C
2017	27.2 C	+0.24 C
2018	26.9 C	-0.13 C
2019	26.8 C	-0.14 C
2020	27.4 C	+0.46 C
2021	27.3 C	+0.35 C
2022	27.4 C	+0.37 C
2023	26.9 C	-0.06 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1893 to 2026

Yearly extremes at Sweers Island: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.5 C (103.1 F)	2012	37.3 C (99.1 F)	26
Coldest night (TNn)	9.1 C (48.4 F)	2002	12.6 C (54.6 F)	26
Wettest day (Rx1day)	280.0 mm (11.0 in)	2025	149.0 mm (5.9 in)	33
Wettest five days (Rx5day)	862.0 mm (33.9 in)	2017	298.5 mm (11.8 in)	33
Longest dry spell (CDD)	248 days	2002	137 days	33

Hottest day (TXx)

The hottest day of the year at Sweers Island, 1893 to 2026. The record is 39.5 C (103.1 F) in 2012, marked on the chart; the median year is 37.3 C (99.1 F).

Hottest day (TXx) at Sweers Island by year
Year	Hottest day (TXx)
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1900	n/a
1901	n/a
2001	37.0 C (98.6 F)
2002	38.0 C (100.4 F)
2003	38.5 C (101.3 F)
2004	39.2 C (102.6 F)
2005	38.5 C (101.3 F)
2006	37.0 C (98.6 F)
2007	36.9 C (98.4 F)
2008	36.7 C (98.1 F)
2009	37.6 C (99.7 F)
2010	36.0 C (96.8 F)
2011	37.2 C (99.0 F)
2012	39.5 C (103.1 F)
2013	37.9 C (100.2 F)
2014	37.3 C (99.1 F)
2015	36.6 C (97.9 F)
2016	38.1 C (100.6 F)
2017	36.2 C (97.2 F)
2018	38.6 C (101.5 F)
2019	38.1 C (100.6 F)
2020	39.0 C (102.2 F)
2021	37.2 C (99.0 F)
2022	37.0 C (98.6 F)
2023	38.0 C (100.4 F)
2024	36.6 C (97.9 F)
2025	37.1 C (98.8 F)
2026	35.2 C (95.4 F)

Coldest night (TNn)

The coldest night of the year at Sweers Island, 1893 to 2026. The record is 9.1 C (48.4 F) in 2002, marked on the chart; the median year is 12.6 C (54.6 F).

Coldest night (TNn) at Sweers Island by year
Year	Coldest night (TNn)
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1900	n/a
1901	n/a
2001	12.5 C (54.5 F)
2002	9.1 C (48.4 F)
2003	12.5 C (54.5 F)
2004	11.2 C (52.2 F)
2005	15.2 C (59.4 F)
2006	13.5 C (56.3 F)
2007	11.1 C (52.0 F)
2008	12.2 C (54.0 F)
2009	12.5 C (54.5 F)
2010	14.3 C (57.7 F)
2011	12.5 C (54.5 F)
2012	10.9 C (51.6 F)
2013	14.3 C (57.7 F)
2014	12.6 C (54.7 F)
2015	12.2 C (54.0 F)
2016	12.4 C (54.3 F)
2017	16.7 C (62.1 F)
2018	13.5 C (56.3 F)
2019	14.0 C (57.2 F)
2020	12.9 C (55.2 F)
2021	15.1 C (59.2 F)
2022	12.2 C (54.0 F)
2023	14.1 C (57.4 F)
2024	12.2 C (54.0 F)
2025	13.0 C (55.4 F)
2026	15.3 C (59.5 F)

Wettest day (Rx1day)

The wettest day of the year at Sweers Island, 1893 to 2026. The record is 280.0 mm (11.0 in) in 2025, marked on the chart; the median year is 149.0 mm (5.9 in).

Wettest day (Rx1day) at Sweers Island by year
Year	Wettest day (Rx1day)
1893	55.1 mm (2.2 in)
1894	72.1 mm (2.8 in)
1895	153.2 mm (6.0 in)
1896	156.2 mm (6.1 in)
1897	181.4 mm (7.1 in)
1900	47.0 mm (1.9 in)
1901	245.9 mm (9.7 in)
2001	54.2 mm (2.1 in)
2002	132.0 mm (5.2 in)
2003	162.0 mm (6.4 in)
2004	83.0 mm (3.3 in)
2005	81.0 mm (3.2 in)
2006	138.0 mm (5.4 in)
2007	149.0 mm (5.9 in)
2008	64.0 mm (2.5 in)
2009	124.0 mm (4.9 in)
2010	147.0 mm (5.8 in)
2011	251.0 mm (9.9 in)
2012	179.0 mm (7.0 in)
2013	213.0 mm (8.4 in)
2014	62.0 mm (2.4 in)
2015	93.0 mm (3.7 in)
2016	117.0 mm (4.6 in)
2017	216.0 mm (8.5 in)
2018	169.0 mm (6.7 in)
2019	136.0 mm (5.4 in)
2020	156.0 mm (6.1 in)
2021	223.0 mm (8.8 in)
2022	171.0 mm (6.7 in)
2023	154.0 mm (6.1 in)
2024	227.0 mm (8.9 in)
2025	280.0 mm (11.0 in)
2026	69.0 mm (2.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sweers Island, 1893 to 2026. The record is 862.0 mm (33.9 in) in 2017, marked on the chart; the median year is 298.5 mm (11.8 in).

Wettest five days (Rx5day) at Sweers Island by year
Year	Wettest five days (Rx5day)
1893	96.0 mm (3.8 in)
1894	75.1 mm (3.0 in)
1895	196.1 mm (7.7 in)
1896	352.8 mm (13.9 in)
1897	266.3 mm (10.5 in)
1900	50.0 mm (2.0 in)
1901	451.4 mm (17.8 in)
2001	69.0 mm (2.7 in)
2002	364.0 mm (14.3 in)
2003	351.2 mm (13.8 in)
2004	229.7 mm (9.0 in)
2005	111.3 mm (4.4 in)
2006	345.7 mm (13.6 in)
2007	362.5 mm (14.3 in)
2008	103.0 mm (4.1 in)
2009	316.7 mm (12.5 in)
2010	423.5 mm (16.7 in)
2011	707.0 mm (27.8 in)
2012	298.5 mm (11.8 in)
2013	376.0 mm (14.8 in)
2014	150.0 mm (5.9 in)
2015	123.0 mm (4.8 in)
2016	269.0 mm (10.6 in)
2017	862.0 mm (33.9 in)
2018	471.0 mm (18.5 in)
2019	235.7 mm (9.3 in)
2020	247.0 mm (9.7 in)
2021	460.0 mm (18.1 in)
2022	193.4 mm (7.6 in)
2023	344.0 mm (13.5 in)
2024	387.0 mm (15.2 in)
2025	400.6 mm (15.8 in)
2026	125.7 mm (4.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sweers Island, 1893 to 2026. The record is 248 days in 2002, marked on the chart; the median year is 137 days.

Longest dry spell (CDD) at Sweers Island by year
Year	Longest dry spell (CDD)
1893	55 days
1894	71 days
1895	79 days
1896	103 days
1897	18 days
1900	153 days
1901	174 days
2001	117 days
2002	248 days
2003	177 days
2004	124 days
2005	90 days
2006	144 days
2007	55 days
2008	112 days
2009	224 days
2010	147 days
2011	197 days
2012	82 days
2013	170 days
2014	149 days
2015	190 days
2016	53 days
2017	149 days
2018	180 days
2019	192 days
2020	154 days
2021	128 days
2022	103 days
2023	137 days
2024	142 days
2025	102 days
2026	74 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.

Download the Data

Data for Sweers Island standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sweers Island 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).