Seoul City Weather Records (KSM00047108)

Record envelope, standing records and threshold days for Seoul City (KSM00047108), Korea, South, with 53 years of record.

Key Facts for Seoul City

Seoul City (KSM00047108) is a weather station in Korea, South at 37.57 latitude and 126.97 longitude, 87 m (285 ft) above sea level.
The station reports from 1973 to 2025, 53 years of record.
1,464 records set at Seoul City still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Seoul City set a daily record high minimum temperature of 26.9 C (80.4 F) on 24 August 2025.

About the Station

Location: Korea, South, 37.57 latitude, 126.97 longitude.
Elevation: 87 m (285 ft).
Period of record: 1973 to 2025, 53 years.
Eligible elements: tmax, tmin.

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 Seoul City. 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 Seoul City, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.5 C (56.3 F)	-19.2 C (-2.6 F)	7.7 C (45.9 F)	-12.2 C (10.0 F)
Feb	18.7 C (65.7 F)	-17.1 C (1.2 F)	n/a	-11.8 C (10.8 F)
Mar	23.8 C (74.8 F)	-15.3 C (4.5 F)	n/a	-1.9 C (28.6 F)
Apr	29.8 C (85.6 F)	-9.4 C (15.1 F)	n/a	1.1 C (34.0 F)
May	33.3 C (91.9 F)	-2.1 C (28.2 F)	27.0 C (80.6 F)	8.2 C (46.8 F)
Jun	35.0 C (95.0 F)	7.0 C (44.6 F)	30.2 C (86.4 F)	15.2 C (59.4 F)
Jul	38.4 C (101.1 F)	10.9 C (51.6 F)	n/a	21.5 C (70.7 F)
Aug	38.1 C (100.6 F)	12.5 C (54.5 F)	34.3 C (93.7 F)	21.0 C (69.8 F)
Sep	36.0 C (96.8 F)	3.9 C (39.0 F)	n/a	n/a
Oct	29.0 C (84.2 F)	-2.0 C (28.4 F)	n/a	n/a
Nov	28.0 C (82.4 F)	-11.0 C (12.2 F)	n/a	n/a
Dec	15.9 C (60.6 F)	-18.0 C (-0.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Seoul City still stand. 1977 holds the most, with 51.

Standing records at Seoul City by the year they were set
Year set	Standing records
1973	29
1974	37
1975	22
1976	46
1977	51
1978	23
1979	37
1980	48
1981	34
1982	18
1983	26
1984	27
1985	32
1986	25
1987	31
1988	16
1989	24
1990	34
1991	18
1992	26
1993	32
1994	44
1995	18
1996	20
1997	29
1998	34
1999	39
2000	19
2001	22
2002	36
2003	23
2004	31
2005	13
2006	27
2007	26
2008	31
2009	39
2010	37
2011	25
2012	24
2013	29
2014	25
2015	25
2016	41
2017	10
2018	14
2019	9
2020	17
2021	20
2022	28
2023	19
2024	30
2025	24

All-Time Record Progression

1 new records

1 all-time records were set at Seoul City between 2 August 2018 and 2 August 2018. Each dot is a new record.

Wettest Day of Each Month

Jul: 340.1 mm (13.4 in)

The wettest day on record for each calendar month at Seoul City. The most was 340.1 mm (13.4 in) on 16 July 2022.

Record daily precipitation for each month at Seoul City
Month	Record daily precipitation (mm)	Date
Jan	50.0 mm (2.0 in)	15 January 1982
Feb	47.0 mm (1.9 in)	1 February 2013
Mar	94.0 mm (3.7 in)	3 March 1989
Apr	72.9 mm (2.9 in)	30 April 2011
May	103.9 mm (4.1 in)	7 May 1992
Jun	225.0 mm (8.9 in)	23 June 2014
Jul	340.1 mm (13.4 in)	16 July 2022
Aug	312.9 mm (12.3 in)	7 August 1992
Sep	272.0 mm (10.7 in)	11 September 1990
Oct	100.1 mm (3.9 in)	10 October 1985
Nov	89.9 mm (3.5 in)	19 November 2020
Dec	46.5 mm (1.8 in)	22 December 2016

Period of Record Coverage

1973 to 2025

51 years of record at Seoul City, 1973 to 2025. 14 years have data for under 90 percent of days and are left out of rankings: 1973, 1974, 2003, 2004, 2006, 2007, 2016, 2017 and others.

Days with data per year at Seoul City
Year	Days with data	Share of year	Complete
1973	326	89%	No
1974	327	90%	No
1975	343	94%	Yes
1976	337	92%	Yes
1977	352	96%	Yes
1978	351	96%	Yes
1979	356	98%	Yes
1980	359	98%	Yes
1981	355	97%	Yes
1982	350	96%	Yes
1983	352	96%	Yes
1984	335	92%	Yes
1985	349	96%	Yes
1986	355	97%	Yes
1987	348	95%	Yes
1988	352	96%	Yes
1989	343	94%	Yes
1990	356	98%	Yes
1991	348	95%	Yes
1992	355	97%	Yes
1993	353	97%	Yes
1994	355	97%	Yes
1995	360	99%	Yes
1996	354	97%	Yes
1997	354	97%	Yes
1998	355	97%	Yes
1999	348	95%	Yes
2000	350	96%	Yes
2001	349	96%	Yes
2002	331	91%	Yes
2003	310	85%	No
2004	323	88%	No
2005	330	90%	Yes
2006	312	85%	No
2007	320	88%	No
2008	361	99%	Yes
2009	363	99%	Yes
2010	361	99%	Yes
2011	363	99%	Yes
2012	365	100%	Yes
2013	360	99%	Yes
2014	362	99%	Yes
2015	356	98%	Yes
2016	312	85%	No
2017	2	1%	No
2018	11	3%	No
2021	3	1%	No
2022	151	41%	No
2023	14	4%	No
2024	17	5%	No
2025	7	2%	No

Latest Records

Latest records at Seoul City
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 August 2025	Seoul City, KR	daily high min	26.9 C (80.4 F)	1.6 C (2.9 F)	40 years	23 of 100 (Routine)
22 August 2025	Seoul City, KR	daily high min	26.1 C (79.0 F)	0.3 C (0.5 F)	8 years	8 of 100 (Routine)
19 August 2025	Seoul City, KR	daily high min	26.9 C (80.4 F)	0.6 C (1.1 F)	0 years	7 of 100 (Routine)
30 July 2025	Seoul City, KR	monthly high min (Tie)	28.3 C (82.9 F)	tie	0 years	3 of 100 (Routine)
29 July 2025	Seoul City, KR	daily high min	27.6 C (81.7 F)	0.3 C (0.5 F)	3 years	6 of 100 (Routine)
27 July 2025	Seoul City, KR	monthly high min	28.3 C (82.9 F)	0.3 C (0.5 F)	31 years	25 of 100 (Routine)
26 July 2025	Seoul City, KR	daily high min	27.6 C (81.7 F)	0.2 C (0.4 F)	4 years	6 of 100 (Routine)
12 July 2025	Seoul City, KR	daily high min	24.4 C (75.9 F)	0.4 C (0.7 F)	52 years	21 of 100 (Routine)
8 July 2025	Seoul City, KR	daily high min	26.9 C (80.4 F)	2.3 C (4.1 F)	8 years	16 of 100 (Routine)
7 July 2025	Seoul City, KR	daily high min	26.7 C (80.1 F)	1.2 C (2.2 F)	27 years	18 of 100 (Routine)
6 July 2025	Seoul City, KR	daily high min	26.3 C (79.3 F)	0.1 C (0.2 F)	3 years	5 of 100 (Routine)
5 July 2025	Seoul City, KR	daily high min	26.0 C (78.8 F)	2.7 C (4.9 F)	8 years	18 of 100 (Routine)
2 July 2025	Seoul City, KR	daily high min	26.8 C (80.2 F)	2.4 C (4.3 F)	24 years	22 of 100 (Routine)
1 July 2025	Seoul City, KR	daily high min	26.2 C (79.2 F)	2.9 C (5.2 F)	2 years	17 of 100 (Routine)
30 June 2025	Seoul City, KR	monthly high min	25.6 C (78.1 F)	0.2 C (0.4 F)	3 years	15 of 100 (Routine)
29 June 2025	Seoul City, KR	daily high min	24.9 C (76.8 F)	1.9 C (3.4 F)	48 years	26 of 100 (Routine)
28 June 2025	Seoul City, KR	daily high min	24.5 C (76.1 F)	0.3 C (0.5 F)	2 years	6 of 100 (Routine)
17 June 2025	Seoul City, KR	daily high min	21.1 C (70.0 F)	0.1 C (0.2 F)	44 years	18 of 100 (Routine)
15 June 2025	Seoul City, KR	daily high min	21.7 C (71.1 F)	1.1 C (2.0 F)	28 years	17 of 100 (Routine)
15 May 2025	Seoul City, KR	daily high min	16.9 C (62.4 F)	0.1 C (0.2 F)	27 years	13 of 100 (Routine)

Extremes by Year

1973 to 2025

Yearly extremes at Seoul City: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.4 C (101.1 F)	1994	35.0 C (95.0 F)	51
Coldest night (TNn)	-19.2 C (-2.6 F)	1986	-15.0 C (5.0 F)	53
Wettest day (Rx1day)	340.1 mm (13.4 in)	2022	128.0 mm (5.0 in)	53
Wettest five days (Rx5day)	624.9 mm (24.6 in)	2011	185.5 mm (7.3 in)	46
Longest dry spell (CDD)	51 days	1999	4 days	53

Hottest day (TXx)

The hottest day of the year at Seoul City, 1973 to 2025. The record is 38.4 C (101.1 F) in 1994, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Seoul City by year
Year	Hottest day (TXx)
1973	35.0 C (95.0 F)
1974	34.0 C (93.2 F)
1975	36.0 C (96.8 F)
1976	35.0 C (95.0 F)
1977	35.0 C (95.0 F)
1978	36.0 C (96.8 F)
1979	33.0 C (91.4 F)
1980	32.0 C (89.6 F)
1981	35.0 C (95.0 F)
1982	35.5 C (95.9 F)
1983	34.4 C (93.9 F)
1984	35.2 C (95.4 F)
1985	35.4 C (95.7 F)
1986	32.8 C (91.0 F)
1987	31.6 C (88.9 F)
1988	36.6 C (97.9 F)
1989	35.3 C (95.5 F)
1990	35.5 C (95.9 F)
1991	34.7 C (94.5 F)
1992	32.8 C (91.0 F)
1993	31.9 C (89.4 F)
1994	38.4 C (101.1 F)
1995	33.7 C (92.7 F)
1996	35.4 C (95.7 F)
1997	36.1 C (97.0 F)
1998	32.8 C (91.0 F)
1999	35.4 C (95.7 F)
2000	35.1 C (95.2 F)
2001	38.1 C (100.6 F)
2002	34.8 C (94.6 F)
2003	32.2 C (90.0 F)
2004	36.2 C (97.2 F)
2005	35.0 C (95.0 F)
2006	34.7 C (94.5 F)
2007	33.2 C (91.8 F)
2008	35.4 C (95.7 F)
2009	34.4 C (93.9 F)
2010	33.8 C (92.8 F)
2011	34.1 C (93.4 F)
2012	36.7 C (98.1 F)
2013	33.9 C (93.0 F)
2014	35.8 C (96.4 F)
2015	36.0 C (96.8 F)
2016	36.6 C (97.9 F)
2017	30.9 C (87.6 F)
2018	31.8 C (89.2 F)
2019	n/a
2020	n/a
2021	31.6 C (88.9 F)
2022	35.1 C (95.2 F)
2023	33.1 C (91.6 F)
2024	28.5 C (83.3 F)
2025	34.3 C (93.7 F)

Coldest night (TNn)

The coldest night of the year at Seoul City, 1973 to 2025. The record is -19.2 C (-2.6 F) in 1986, marked on the chart; the median year is -15.0 C (5.0 F).

Coldest night (TNn) at Seoul City by year
Year	Coldest night (TNn)
1973	-17.0 C (1.4 F)
1974	-15.0 C (5.0 F)
1975	-12.0 C (10.4 F)
1976	-18.0 C (-0.4 F)
1977	-17.0 C (1.4 F)
1978	-16.0 C (3.2 F)
1979	-13.0 C (8.6 F)
1980	-16.0 C (3.2 F)
1981	-16.0 C (3.2 F)
1982	-14.1 C (6.6 F)
1983	-17.1 C (1.2 F)
1984	-15.1 C (4.8 F)
1985	-16.7 C (1.9 F)
1986	-19.2 C (-2.6 F)
1987	-15.1 C (4.8 F)
1988	-12.9 C (8.8 F)
1989	-11.2 C (11.8 F)
1990	-17.1 C (1.2 F)
1991	-15.0 C (5.0 F)
1992	-9.7 C (14.5 F)
1993	-11.2 C (11.8 F)
1994	-12.6 C (9.3 F)
1995	-11.1 C (12.0 F)
1996	-13.8 C (7.2 F)
1997	-13.7 C (7.3 F)
1998	-15.4 C (4.3 F)
1999	-12.3 C (9.9 F)
2000	-11.7 C (10.9 F)
2001	-18.6 C (-1.5 F)
2002	-12.0 C (10.4 F)
2003	-15.5 C (4.1 F)
2004	-16.7 C (1.9 F)
2005	-14.0 C (6.8 F)
2006	-16.6 C (2.1 F)
2007	-8.6 C (16.5 F)
2008	-13.1 C (8.4 F)
2009	-12.9 C (8.8 F)
2010	-15.3 C (4.5 F)
2011	-17.8 C (0.0 F)
2012	-17.1 C (1.2 F)
2013	-16.4 C (2.5 F)
2014	-13.2 C (8.2 F)
2015	-13.0 C (8.6 F)
2016	-18.0 C (-0.4 F)
2017	-12.6 C (9.3 F)
2018	-17.8 C (0.0 F)
2019	-10.9 C (12.4 F)
2020	-12.9 C (8.8 F)
2021	-18.6 C (-1.5 F)
2022	-13.7 C (7.3 F)
2023	-17.3 C (0.9 F)
2024	-14.0 C (6.8 F)
2025	-12.2 C (10.0 F)

Wettest day (Rx1day)

The wettest day of the year at Seoul City, 1973 to 2025. The record is 340.1 mm (13.4 in) in 2022, marked on the chart; the median year is 128.0 mm (5.0 in).

Wettest day (Rx1day) at Seoul City by year
Year	Wettest day (Rx1day)
1973	22.1 mm (0.9 in)
1974	0.5 mm (0.02 in)
1975	0.8 mm (0.03 in)
1976	0.5 mm (0.02 in)
1977	0.5 mm (0.02 in)
1978	0.5 mm (0.02 in)
1979	0.5 mm (0.02 in)
1980	0.5 mm (0.02 in)
1981	0.8 mm (0.03 in)
1982	106.9 mm (4.2 in)
1983	127.0 mm (5.0 in)
1984	267.0 mm (10.5 in)
1985	185.9 mm (7.3 in)
1986	148.1 mm (5.8 in)
1987	336.0 mm (13.2 in)
1988	103.1 mm (4.1 in)
1989	103.1 mm (4.1 in)
1990	272.0 mm (10.7 in)
1991	142.0 mm (5.6 in)
1992	323.1 mm (12.7 in)
1993	90.9 mm (3.6 in)
1994	102.1 mm (4.0 in)
1995	134.1 mm (5.3 in)
1996	167.9 mm (6.6 in)
1997	128.0 mm (5.0 in)
1998	240.0 mm (9.4 in)
1999	242.1 mm (9.5 in)
2000	124.2 mm (4.9 in)
2001	289.8 mm (11.4 in)
2002	204.0 mm (8.0 in)
2003	178.1 mm (7.0 in)
2004	111.5 mm (4.4 in)
2005	115.1 mm (4.5 in)
2006	287.0 mm (11.3 in)
2007	79.0 mm (3.1 in)
2008	133.9 mm (5.3 in)
2009	191.0 mm (7.5 in)
2010	259.1 mm (10.2 in)
2011	296.9 mm (11.7 in)
2012	141.0 mm (5.6 in)
2013	181.1 mm (7.1 in)
2014	225.0 mm (8.9 in)
2015	81.0 mm (3.2 in)
2016	119.1 mm (4.7 in)
2017	142.0 mm (5.6 in)
2018	97.0 mm (3.8 in)
2019	49.5 mm (1.9 in)
2020	137.9 mm (5.4 in)
2021	78.5 mm (3.1 in)
2022	340.1 mm (13.4 in)
2023	52.3 mm (2.1 in)
2024	138.7 mm (5.5 in)
2025	9.4 mm (0.37 in)

Wettest five days (Rx5day)

The wettest five days of the year at Seoul City, 1973 to 2025. The record is 624.9 mm (24.6 in) in 2011, marked on the chart; the median year is 185.5 mm (7.3 in).

Wettest five days (Rx5day) at Seoul City by year
Year	Wettest five days (Rx5day)
1973	26.9 mm (1.1 in)
1974	1.1 mm (0.04 in)
1975	1.1 mm (0.04 in)
1976	0.8 mm (0.03 in)
1977	0.5 mm (0.02 in)
1978	0.5 mm (0.02 in)
1979	0.5 mm (0.02 in)
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	340.7 mm (13.4 in)
1985	40.9 mm (1.6 in)
1986	n/a
1987	n/a
1988	118.8 mm (4.7 in)
1989	21.4 mm (0.8 in)
1990	219.1 mm (8.6 in)
1991	26.0 mm (1.0 in)
1992	496.1 mm (19.5 in)
1993	192.0 mm (7.6 in)
1994	156.9 mm (6.2 in)
1995	429.0 mm (16.9 in)
1996	396.2 mm (15.6 in)
1997	179.3 mm (7.1 in)
1998	488.0 mm (19.2 in)
1999	551.2 mm (21.7 in)
2000	252.3 mm (9.9 in)
2001	324.3 mm (12.8 in)
2002	478.1 mm (18.8 in)
2003	327.6 mm (12.9 in)
2004	218.4 mm (8.6 in)
2005	174.7 mm (6.9 in)
2006	550.9 mm (21.7 in)
2007	142.4 mm (5.6 in)
2008	191.6 mm (7.5 in)
2009	34.5 mm (1.4 in)
2010	270.3 mm (10.6 in)
2011	624.9 mm (24.6 in)
2012	222.3 mm (8.8 in)
2013	281.5 mm (11.1 in)
2014	235.9 mm (9.3 in)
2015	166.9 mm (6.6 in)
2016	50.3 mm (2.0 in)
2017	233.2 mm (9.2 in)
2018	169.6 mm (6.7 in)
2019	115.9 mm (4.6 in)
2020	268.8 mm (10.6 in)
2021	80.8 mm (3.2 in)
2022	42.2 mm (1.7 in)
2023	90.2 mm (3.6 in)
2024	267.2 mm (10.5 in)
2025	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Seoul City, 1973 to 2025. The record is 51 days in 1999, marked on the chart; the median year is 4 days.

Longest dry spell (CDD) at Seoul City by year
Year	Longest dry spell (CDD)
1973	11 days
1974	16 days
1975	27 days
1976	11 days
1977	27 days
1978	19 days
1979	19 days
1980	1 day
1981	1 day
1982	2 days
1983	1 day
1984	2 days
1985	2 days
1986	1 day
1987	1 day
1988	1 day
1989	2 days
1990	2 days
1991	4 days
1992	3 days
1993	9 days
1994	4 days
1995	6 days
1996	3 days
1997	3 days
1998	3 days
1999	51 days
2000	6 days
2001	2 days
2002	4 days
2003	6 days
2004	5 days
2005	6 days
2006	5 days
2007	5 days
2008	3 days
2009	3 days
2010	3 days
2011	4 days
2012	4 days
2013	2 days
2014	3 days
2015	3 days
2016	4 days
2017	3 days
2018	4 days
2019	3 days
2020	4 days
2021	4 days
2022	4 days
2023	4 days
2024	4 days
2025	1 day

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 Seoul City standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Seoul City 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).