Korea, South: Weather Records and Extremes

477 weather records set or tied in Korea, South in 2026: 428 highs and 16 lows, with a calendar heatmap, ratio by decade and record map.

Key Facts for Korea, South

Korea, South has 12 stations in the data, on Asia.
477 weather records were set or tied in Korea, South in 2026: 428 record highs and 16 record lows, counting maximum and minimum temperature.
In the 2020s, record highs outnumbered record lows 11.44 to 1 in Korea, South.
2025 holds the most standing records in Korea, South: 1,084.
Mokpo set an all-time record daily precipitation of 641.0 mm (25.2 in) on 31 August 2026 (provisional).

Record Highs and Lows in 2026

391 highs, 12 lows

Each square is a day of 2026. Warm squares had more record highs than record lows in Korea, South, cold squares more lows. The busiest day was 12 July 2026 with 12 highs and 0 lows.

Record highs and lows per day in Korea, South in 2026
Date	Value
2026-01-01	1 more record lows than highs
2026-01-04	1 more record highs than lows
2026-01-11	1 more record lows than highs
2026-01-15	7 more record highs than lows
2026-01-16	8 more record highs than lows
2026-01-17	4 more record highs than lows
2026-01-18	5 more record highs than lows
2026-01-20	1 more record lows than highs
2026-02-04	1 more record highs than lows
2026-02-07	1 more record lows than highs
2026-02-08	1 more record lows than highs
2026-02-11	1 more record highs than lows
2026-02-13	1 more record highs than lows
2026-02-14	2 more record highs than lows
2026-02-15	6 more record highs than lows
2026-02-19	1 more record highs than lows
2026-02-20	2 more record highs than lows
2026-02-21	5 more record highs than lows
2026-02-22	5 more record highs than lows
2026-02-23	1 more record highs than lows
2026-02-25	4 more record highs than lows
2026-02-26	5 more record highs than lows
2026-02-27	2 more record highs than lows
2026-03-01	1 more record highs than lows
2026-03-02	1 more record highs than lows
2026-03-05	1 more record highs than lows
2026-03-23	1 more record highs than lows
2026-03-25	1 more record highs than lows
2026-04-03	4 more record highs than lows
2026-04-05	1 more record highs than lows
2026-04-08	1 more record highs than lows
2026-04-10	1 more record highs than lows
2026-04-11	1 more record highs than lows
2026-04-12	5 more record highs than lows
2026-04-13	7 more record highs than lows
2026-04-14	2 more record highs than lows
2026-04-15	2 more record highs than lows
2026-04-16	2 more record highs than lows
2026-04-18	3 more record highs than lows
2026-04-19	3 more record highs than lows
2026-04-25	1 more record highs than lows
2026-04-26	2 more record highs than lows
2026-05-01	2 more record lows than highs
2026-05-06	1 more record highs than lows
2026-05-11	4 more record highs than lows
2026-05-13	1 more record highs than lows
2026-05-15	2 more record highs than lows
2026-05-16	3 more record highs than lows
2026-05-17	4 more record highs than lows
2026-05-18	9 more record highs than lows
2026-05-19	6 more record highs than lows
2026-05-20	1 more record highs than lows
2026-05-21	1 more record lows than highs
2026-05-24	2 more record highs than lows
2026-05-25	6 more record highs than lows
2026-05-26	7 more record highs than lows
2026-05-27	2 more record highs than lows
2026-05-28	1 more record highs than lows
2026-05-29	3 more record highs than lows
2026-05-30	5 more record highs than lows
2026-05-31	7 more record highs than lows
2026-06-01	6 more record highs than lows
2026-06-02	5 more record highs than lows
2026-06-03	6 more record highs than lows
2026-06-04	4 more record highs than lows
2026-06-05	1 more record highs than lows
2026-06-06	3 more record highs than lows
2026-06-10	1 more record highs than lows
2026-06-12	1 more record highs than lows
2026-06-15	1 more record highs than lows
2026-06-16	5 more record highs than lows
2026-06-17	5 more record highs than lows
2026-06-18	3 more record highs than lows
2026-06-19	2 more record highs than lows
2026-06-29	1 more record highs than lows
2026-07-10	3 more record highs than lows
2026-07-11	10 more record highs than lows
2026-07-12	12 more record highs than lows
2026-07-13	6 more record highs than lows
2026-07-14	3 more record highs than lows
2026-07-15	1 more record highs than lows
2026-07-16	1 more record highs than lows
2026-07-17	2 more record highs than lows
2026-07-18	2 more record highs than lows
2026-07-20	3 more record highs than lows
2026-07-21	2 more record highs than lows
2026-07-22	4 more record highs than lows
2026-07-23	2 more record highs than lows
2026-07-24	1 more record highs than lows
2026-07-25	3 more record highs than lows
2026-07-26	1 more record highs than lows
2026-07-27	3 more record highs than lows
2026-07-28	4 more record highs than lows
2026-07-29	4 more record highs than lows
2026-07-30	4 more record highs than lows
2026-07-31	9 more record highs than lows
2026-08-01	9 more record highs than lows
2026-08-02	7 more record highs than lows
2026-08-03	7 more record highs than lows
2026-08-04	6 more record highs than lows
2026-08-05	3 more record highs than lows
2026-08-07	10 more record highs than lows
2026-08-08	4 more record highs than lows
2026-08-09	2 more record highs than lows
2026-08-20	2 more record highs than lows
2026-08-21	4 more record highs than lows
2026-08-22	2 more record highs than lows
2026-08-23	1 more record highs than lows
2026-08-24	6 more record highs than lows
2026-08-25	2 more record highs than lows
2026-08-26	7 more record highs than lows
2026-08-27	3 more record highs than lows
2026-08-28	2 more record highs than lows
2026-08-29	3 more record highs than lows
2026-08-30	2 more record highs than lows
2026-08-31	3 more record highs than lows
2026-09-02	3 more record highs than lows
2026-09-03	1 more record highs than lows
2026-09-09	1 more record lows than highs
2026-09-10	1 more record lows than highs
2026-09-21	1 more record highs than lows
2026-09-22	1 more record highs than lows
2026-09-23	2 more record highs than lows
2026-09-24	1 more record highs than lows
2026-09-27	2 more record highs than lows
2026-09-28	1 more record highs than lows
2026-09-30	3 more record highs than lows

Records per Year, by Type

1956 to 2026

Records set or tied in Korea, South each year from 1956 to 2026, stacked by record type. 2026 had 477.

Weather records per year in Korea, South, stacked by type
Year	Highest daily maximum	Lowest daily maximum	Highest daily minimum	Lowest daily minimum	Heaviest daily rainfall	Total
1956	3	22	12	22	19	78
1957	5	23	2	24	15	69
1958	22	15	8	10	14	69
1959	20	9	27	6	17	79
1960	13	8	13	8	10	52
1961	5	5	23	3	10	46
1962	15	12	8	5	4	44
1963	2	14	8	6	7	37
1964	11	3	27	0	6	47
1965	6	10	8	3	6	33
1966	11	12	19	13	6	61
1967	7	8	15	9	5	44
1968	6	7	10	4	9	36
1969	18	30	15	47	16	126
1970	10	29	14	13	13	79
1971	15	21	16	11	11	74
1972	17	15	10	13	27	82
1973	20	9	17	13	18	77
1974	9	16	4	20	13	62
1975	13	7	16	2	12	50
1976	15	27	11	20	15	88
1977	45	23	24	23	14	129
1978	36	5	21	3	16	81
1979	37	11	25	9	19	101
1980	10	34	7	26	20	97
1981	23	40	24	44	23	154
1982	39	13	25	7	20	104
1983	32	17	34	6	29	118
1984	18	22	18	17	23	98
1985	16	23	24	12	24	99
1986	6	31	4	22	24	87
1987	32	25	34	25	26	142
1988	21	10	13	10	13	67
1989	20	10	25	14	37	106
1990	47	11	32	11	28	129
1991	15	8	14	18	23	78
1992	21	11	18	18	19	87
1993	14	24	11	38	23	110
1994	73	3	58	5	14	153
1995	14	10	7	10	12	53
1996	27	13	20	16	11	87
1997	26	6	24	9	19	84
1998	54	8	64	3	24	153
1999	28	15	28	9	31	111
2000	42	7	10	2	11	72
2001	42	5	15	3	11	76
2002	42	19	10	23	18	112
2003	73	54	76	88	26	317
2004	153	43	94	80	27	397
2005	97	64	91	113	15	380
2006	78	63	95	104	26	366
2007	83	47	135	45	24	334
2008	85	64	101	25	17	292
2009	112	104	138	37	24	415
2010	105	117	112	69	14	417
2011	80	87	95	38	15	315
2012	55	60	91	33	26	265
2013	124	58	136	40	14	372
2014	114	45	96	13	13	281
2015	82	32	114	16	11	255
2016	119	34	202	19	15	389
2017	2	0	121	21	11	155
2018	1	0	201	50	19	271
2019	0	0	122	3	10	135
2020	0	0	154	19	20	193
2021	4	0	148	34	20	206
2022	87	15	196	17	6	321
2023	4	2	188	27	4	225
2024	21	1	271	8	7	308
2025	193	44	503	11	0	751
2026	108	6	277	6	33	430

Warm to Cold Ratio by Decade

Record highs per record low by decade in Korea, South: 1950s 0.8 to 1, 1960s 1.2 to 1, 1970s 1.3 to 1, 1980s 1.0 to 1, 1990s 2.5 to 1, 2000s 1.6 to 1, 2010s 2.7 to 1, 2020s 11 to 1. A ratio above 1 means more record highs than record lows.

Which Years Hold the Most Standing Records

2025: 1,084

Records still standing in Korea, South, by the year they were set. 2025 holds the most with 1,084.

Standing records in Korea, South by the year they were set
Year set	Standing records
1926	13
1927	18
1928	24
1929	12
1930	15
1931	25
1932	14
1933	16
1934	19
1935	15
1936	28
1937	13
1938	9
1939	38
1940	42
1941	51
1942	67
1943	29
1944	25
1945	50
1946	35
1947	81
1948	39
1949	69
1950	438
1951	796
1952	177
1953	256
1954	349
1955	286
1956	215
1957	91
1958	89
1959	61
1960	62
1961	51
1962	66
1963	40
1964	53
1965	59
1966	66
1967	64
1968	67
1969	81
1970	75
1971	44
1972	79
1973	303
1974	394
1975	176
1976	475
1977	538
1978	307
1979	374
1980	499
1981	402
1982	288
1983	330
1984	335
1985	348
1986	357
1987	478
1988	220
1989	322
1990	397
1991	329
1992	397
1993	403
1994	399
1995	240
1996	372
1997	386
1998	428
1999	364
2000	271
2001	421
2002	470
2003	308
2004	378
2005	314
2006	327
2007	316
2008	260
2009	381
2010	443
2011	416
2012	316
2013	432
2014	313
2015	245
2016	408
2017	136
2018	298
2019	149
2020	217
2021	226
2022	285
2023	236
2024	315
2025	1,084
2026	568

Record Map for 2026

500 stations

The 500 highest significance station records of 2026 in Korea, South, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records in Korea, South in 2026: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mokpo	Korea, South	Record daily precipitation	641.0 mm (25.2 in)	83 of 100 (Exceptional)
Mokpo	Korea, South	Record daily precipitation	181.5 mm (7.1 in)	75 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	589.9 mm (23.2 in)	73 of 100 (Major)
Ulleungdo	Korea, South	Record daily precipitation	222.1 mm (8.7 in)	72 of 100 (Major)
Ulleungdo	Korea, South	Record daily precipitation	222.1 mm (8.7 in)	68 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	309.6 mm (12.2 in)	67 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	392.8 mm (15.5 in)	66 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	191.0 mm (7.5 in)	66 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	229.6 mm (9.0 in)	66 of 100 (Major)
Mokpo	Korea, South	Record daily precipitation	119.1 mm (4.7 in)	63 of 100 (Major)
Mokpo	Korea, South	Record high minimum temperature	29.2 C (84.6 F)	57 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	268.8 mm (10.6 in)	56 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	231.7 mm (9.1 in)	56 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	254.0 mm (10.0 in)	55 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	251.8 mm (9.9 in)	55 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	273.3 mm (10.8 in)	48 of 100 (Notable)
Incheon	Korea, South	Record daily precipitation	168.8 mm (6.6 in)	47 of 100 (Notable)
Incheon	Korea, South	Record daily precipitation	229.7 mm (9.0 in)	46 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	24.4 C (75.9 F)	44 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	142.4 mm (5.6 in)	42 of 100 (Notable)
Incheon	Korea, South	Record daily precipitation	222.1 mm (8.7 in)	42 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	27.2 C (81.0 F)	42 of 100 (Notable)
Mokpo	Korea, South	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Mokpo	Korea, South	Record high minimum temperature	21.7 C (71.1 F)	41 of 100 (Notable)
Chuncheon	Korea, South	Record high maximum temperature	37.2 C (99.0 F)	39 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	132.1 mm (5.2 in)	39 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Mokpo	Korea, South	Record low maximum temperature	-3.2 C (26.2 F)	39 of 100 (Notable)
Ulleungdo	Korea, South	Record low maximum temperature	10.3 C (50.5 F)	39 of 100 (Notable)
Incheon	Korea, South	Record daily precipitation	303.3 mm (11.9 in)	38 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	25.1 C (77.2 F)	38 of 100 (Notable)
Mokpo	Korea, South	Record high minimum temperature	21.3 C (70.3 F)	37 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	13.0 C (55.4 F)	36 of 100 (Notable)
Incheon	Korea, South	Record high minimum temperature	28.2 C (82.8 F)	35 of 100 (Notable)
Ulleungdo	Korea, South	Record high minimum temperature	29.8 C (85.6 F)	35 of 100 (Notable)
Incheon	Korea, South	Record daily precipitation	82.0 mm (3.2 in)	34 of 100 (Routine)
Mokpo	Korea, South	Record high minimum temperature	27.1 C (80.8 F)	34 of 100 (Routine)
Ulleungdo	Korea, South	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Ulleungdo	Korea, South	Record high minimum temperature	6.2 C (43.2 F)	34 of 100 (Routine)
Mokpo	Korea, South	Record daily precipitation	112.2 mm (4.4 in)	33 of 100 (Routine)
Mokpo	Korea, South	Record daily precipitation	80.5 mm (3.2 in)	33 of 100 (Routine)
Busan	Korea, South	Record high maximum temperature	38.5 C (101.3 F)	32 of 100 (Routine)
Ulleungdo	Korea, South	Record daily precipitation	135.7 mm (5.3 in)	32 of 100 (Routine)
Jeju	Korea, South	Record high minimum temperature	28.9 C (84.0 F)	32 of 100 (Routine)
Ulleungdo	Korea, South	Record high maximum temperature	29.7 C (85.5 F)	32 of 100 (Routine)
Pohang	Korea, South	Record high maximum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Ulleungdo	Korea, South	Record daily precipitation	317.7 mm (12.5 in)	31 of 100 (Routine)
Busan	Korea, South	Record high minimum temperature	23.1 C (73.6 F)	31 of 100 (Routine)
Incheon	Korea, South	Record high minimum temperature	20.1 C (68.2 F)	31 of 100 (Routine)
Incheon	Korea, South	Record high minimum temperature	13.3 C (55.9 F)	31 of 100 (Routine)
Incheon	Korea, South	Record high minimum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Mokpo	Korea, South	Record high minimum temperature	26.2 C (79.2 F)	30 of 100 (Routine)
Ulleungdo	Korea, South	Record high minimum temperature	18.0 C (64.4 F)	30 of 100 (Routine)
Yeosu	Korea, South	Record high maximum temperature	37.0 C (98.6 F)	29 of 100 (Routine)
Busan	Korea, South	Record high maximum temperature	37.5 C (99.5 F)	29 of 100 (Routine)
Mokpo	Korea, South	Record high minimum temperature	20.9 C (69.6 F)	29 of 100 (Routine)
Ulleungdo	Korea, South	Record high minimum temperature	20.8 C (69.4 F)	29 of 100 (Routine)
Ulleungdo	Korea, South	Record low maximum temperature	-0.7 C (30.7 F)	29 of 100 (Routine)
Jeju	Korea, South	Record high minimum temperature	23.6 C (74.5 F)	29 of 100 (Routine)
Yeosu	Korea, South	Record high minimum temperature	29.0 C (84.2 F)	28 of 100 (Routine)

Top Records by Significance

See all 20

Top 10 records in Korea, South by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 2026	Mokpo, KR	all-time rain (Provisional)	641.0 mm (25.2 in)	246.0 mm (9.7 in)	44 years	83 of 100 (Exceptional)
21 August 2026	Mokpo, KR	daily rain (Provisional)	181.5 mm (7.1 in)	101.5 mm (4.0 in)	96 years	75 of 100 (Major)
1 September 2026	Mokpo, KR	monthly rain (Provisional)	589.9 mm (23.2 in)	194.9 mm (7.7 in)	44 years	73 of 100 (Major)
17 July 2026	Ulleungdo, KR	daily rain	222.1 mm (8.7 in)	155.1 mm (6.1 in)	80 years	72 of 100 (Major)
8 July 2026	Ulleungdo, KR	daily rain	222.1 mm (8.7 in)	103.1 mm (4.1 in)	67 years	68 of 100 (Major)
8 July 2026	Mokpo, KR	monthly rain	309.6 mm (12.2 in)	107.4 mm (4.2 in)	25 years	67 of 100 (Major)
22 August 2026	Mokpo, KR	monthly rain (Provisional)	392.8 mm (15.5 in)	197.2 mm (7.8 in)	22 years	66 of 100 (Major)
14 July 2026	Mokpo, KR	daily rain	191.0 mm (7.5 in)	89.0 mm (3.5 in)	79 years	66 of 100 (Major)
9 July 2026	Mokpo, KR	daily rain	229.6 mm (9.0 in)	147.6 mm (5.8 in)	53 years	66 of 100 (Major)
18 July 2026	Mokpo, KR	daily rain	119.1 mm (4.7 in)	68.1 mm (2.7 in)	96 years	63 of 100 (Major)

Korea, South by Year

Stations

12 with pages

Stations in Korea, South
Station	Region	Record from	Years	Thresholds
Mokpo	n/a	1926	101 years	Threshold days
Ulleungdo	n/a	1939	88 years	Threshold days
Incheon	n/a	1949	78 years	Threshold days
Pusan Ast - Rok K-9	n/a	1950	77 years	Threshold days
Busan	n/a	1973	54 years	Threshold days
Chuncheon	n/a	1973	54 years	Threshold days
Gangneung	n/a	1973	54 years	Threshold days
Jeju	n/a	1973	54 years	Threshold days
Pohang	n/a	1973	54 years	Threshold days
Seoul City	n/a	1973	53 years	Threshold days
Taejon	n/a	1973	53 years	Threshold days
Yeosu	n/a	1973	54 years	Threshold days

Download the Data

Data for Korea, South records by year and type: CSV or JSON. Field meanings are on the data page.
Data for Korea, South top records: CSV or JSON. Field meanings are on the data page.

Sources: 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)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Decade	Highs per low
1950s	0.76 to 1
1960s	1.16 to 1
1970s	1.29 to 1
1980s	1.04 to 1
1990s	2.45 to 1
2000s	1.59 to 1
2010s	2.70 to 1
2020s	11.44 to 1