Boseong climate — normals and trends

Q: What is the climate of Boseong?

Boseong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 1,308 mm of precipitation per year.

Q: What is the hottest day ever recorded in Boseong?

The hottest day measured in Boseong between 1940 and 2025 was 20 July 1994, reaching 36.9 °C.

Q: What is the coldest day in Boseong?

The coldest day measured in Boseong between 1940 and 2025 was 15 January 2001, at -16.2 °C.

Q: Does it snow in Boseong?

Yes. Boseong gets on average 8.5 cm of snow per year and has around 83 frost days.

Q: Has the climate of Boseong warmed?

Yes: Boseong warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Boseong?

The wettest day measured in Boseong between 1940 and 2025 was 24 June 1985, with 193 mm of rain in 24 hours.

Q: What was the windiest day in Boseong?

The windiest day measured in Boseong between 1940 and 2025 was 28 August 2012, with winds reaching 69.9 km/h.

Q: What is the warmest month in Boseong?

The warmest month in Boseong is August (25.8 °C on average); the coldest is January (0.3 °C).

Q: How much does it rain in Boseong?

Boseong receives on average 1,308 mm of precipitation per year, spread over about 104 rainy days.

Q: Is it sunny in Boseong?

Boseong gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

Boseong (South Korea) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.2 °C and it receives 1,308 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is August (25.8 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in July.

Boseong averages 83 frost days, 23 hot days (≥ 30 °C) and 104 rainy days per year.

Boseong has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.

The number of frost days there went from about 96 to 70 per year over the period.

The hottest day of the period reached 36.9 °C (on 20 July 1994) and the coldest -16.2 °C (on 15 January 2001).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

BoseongJeollanam-do

coords: 34.77°, 127.08°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

13.2°C

Average daily high

17.6°C

Average daily low

9.4°C

Annual rainfall

1,308mm

Sunshine / day

8.5h

Mean relative humidity

75%

Average peak wind

16.8km/h

Seasonal range

25.5°C

Frost days (< 0 °C)

83 d/yr

Hot days (≥ 30 °C)

23 d/yr

Rainy days (≥ 1 mm)

104 d/yr

Annual snowfall

8.5 cm

Average feels-like high

17.0 °C

Average feels-like low

8.0 °C

Average peak gust

38.4 km/h

Tropical nights (≥ 20 °C)

70 d/yr

Solar radiation

14.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.0 °C

since 1940

+0.2 °C per decade · r² = 0.62 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

36.9 °C

20 July 1994

Coldest day

-16.2 °C

15 January 2001

Wettest day

193 mm

24 June 1985

Windiest day

69.9 km/h

28 August 2012

Strongest gust

160.2 km/h

28 August 2012

Hottest feels-like

42.9 °C

15 August 1954

Coldest feels-like

-21.2 °C

15 January 2001

Snowiest day

14.5 cm

11 February 1994

Sunniest day

13.8 h

29 June 1951

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.2 °C7 July 2025	-10.4 °C10 January 2025	14.6 °C	1,245 mm	56	83
2024	34.5 °C3 August 2024	-6.3 °C2 March 2024	15.3 °C	1,588 mm	64	61
2023	34.7 °C5 August 2023	-14.1 °C25 January 2023	14.6 °C	1,712 mm	35	74
2022	32.9 °C18 September 2022	-9.8 °C18 December 2022	14.1 °C	810 mm	31	85
2021	34.2 °C7 August 2021	-12.8 °C8 January 2021	14.6 °C	1,064 mm	28	54
2020	33.8 °C18 August 2020	-9.0 °C31 December 2020	13.9 °C	1,501 mm	21	59
2019	32.8 °C2 August 2019	-6.3 °C4 January 2019	14.1 °C	1,442 mm	22	70
2018	35.6 °C27 July 2018	-12.0 °C27 January 2018	13.9 °C	1,449 mm	40	73
2017	35.6 °C6 August 2017	-7.5 °C15 January 2017	13.9 °C	874 mm	41	89
2016	35.4 °C12 August 2016	-11.8 °C24 January 2016	14.5 °C	1,535 mm	36	68
2015	33.1 °C26 July 2015	-9.9 °C3 January 2015	14.2 °C	1,244 mm	19	67
2014	33.1 °C31 July 2014	-8.4 °C18 December 2014	14.0 °C	1,253 mm	17	79
2013	34.7 °C20 August 2013	-9.2 °C4 January 2013	14.1 °C	1,007 mm	46	85
2012	34.5 °C1 August 2012	-9.5 °C3 February 2012	13.2 °C	1,579 mm	25	86
2011	35.4 °C19 July 2011	-10.4 °C16 January 2011	13.4 °C	1,404 mm	27	92
2010	33.4 °C21 August 2010	-10.7 °C14 January 2010	13.7 °C	1,300 mm	34	82
2009	31.5 °C15 August 2009	-9.6 °C31 December 2009	14.0 °C	1,296 mm	15	64
2008	33.5 °C9 July 2008	-7.1 °C18 February 2008	13.9 °C	914 mm	31	78
2007	33.1 °C2 August 2007	-5.4 °C3 February 2007	14.3 °C	1,431 mm	26	61
2006	33.6 °C15 August 2006	-9.8 °C4 February 2006	14.0 °C	1,359 mm	33	66
2005	34.2 °C22 July 2005	-10.4 °C18 December 2005	13.5 °C	864 mm	25	96
2004	35.4 °C23 July 2004	-11.1 °C22 January 2004	14.4 °C	1,210 mm	37	71
2003	31.8 °C4 August 2003	-8.8 °C6 January 2003	13.7 °C	1,742 mm	15	71
2002	33.1 °C25 July 2002	-5.2 °C11 December 2002	13.9 °C	1,407 mm	20	57
2001	33.4 °C4 August 2001	-16.2 °C15 January 2001	13.7 °C	1,181 mm	31	77
2000	33.5 °C12 August 2000	-7.4 °C1 February 2000	13.5 °C	1,187 mm	41	83
1999	32.6 °C17 August 1999	-7.0 °C3 February 1999	13.8 °C	1,822 mm	15	70
1998	32.1 °C7 August 1998	-10.5 °C25 January 1998	14.5 °C	1,582 mm	24	62
1997	34.1 °C28 July 1997	-10.2 °C22 January 1997	13.6 °C	1,180 mm	33	78
1996	33.5 °C31 July 1996	-8.1 °C2 February 1996	13.0 °C	1,397 mm	32	87
1995	33.9 °C13 August 1995	-7.3 °C31 December 1995	13.1 °C	1,186 mm	26	85
1994	36.9 °C20 July 1994	-10.0 °C24 January 1994	14.2 °C	771 mm	43	83
1993	30.9 °C11 August 1993	-9.2 °C18 January 1993	12.9 °C	1,592 mm	2	80
1992	31.7 °C28 July 1992	-7.5 °C20 January 1992	13.4 °C	1,074 mm	13	73
1991	33.0 °C20 August 1991	-9.9 °C23 February 1991	13.3 °C	1,593 mm	7	75
1990	34.0 °C1 August 1990	-10.9 °C25 January 1990	14.1 °C	1,444 mm	30	54
1989	32.0 °C31 July 1989	-8.4 °C29 January 1989	13.6 °C	1,458 mm	10	56
1988	32.2 °C9 August 1988	-8.6 °C4 February 1988	12.9 °C	930 mm	16	87
1987	31.1 °C5 August 1987	-8.0 °C1 February 1987	13.1 °C	1,818 mm	2	91
1986	32.7 °C3 August 1986	-8.4 °C3 January 1986	12.5 °C	1,719 mm	13	86
1985	33.3 °C8 August 1985	-10.2 °C30 January 1985	13.0 °C	2,232 mm	28	87
1984	33.2 °C12 August 1984	-10.2 °C3 February 1984	12.7 °C	1,142 mm	22	96
1983	35.0 °C5 August 1983	-13.2 °C21 January 1983	13.1 °C	1,470 mm	17	89
1982	31.6 °C8 August 1982	-12.7 °C9 February 1982	13.1 °C	1,123 mm	12	82
1981	33.2 °C19 July 1981	-9.2 °C26 February 1981	12.7 °C	1,545 mm	23	96
1980	30.4 °C21 July 1980	-9.7 °C18 January 1980	12.3 °C	1,601 mm	1	78
1979	32.5 °C12 August 1979	-9.2 °C5 February 1979	13.3 °C	1,450 mm	19	75
1978	33.2 °C25 July 1978	-8.4 °C1 February 1978	13.6 °C	1,302 mm	33	83
1977	34.0 °C1 August 1977	-11.9 °C16 February 1977	13.2 °C	1,280 mm	18	78
1976	31.7 °C11 August 1976	-10.1 °C24 January 1976	12.6 °C	1,347 mm	11	87
1975	34.2 °C17 August 1975	-7.8 °C28 December 1975	13.5 °C	1,308 mm	32	87
1974	32.2 °C17 August 1974	-8.4 °C24 January 1974	12.4 °C	1,607 mm	17	87
1973	33.3 °C14 August 1973	-8.0 °C25 December 1973	13.4 °C	1,041 mm	35	88
1972	33.0 °C23 July 1972	-7.2 °C3 January 1972	13.2 °C	2,100 mm	13	67
1971	33.1 °C1 August 1971	-11.2 °C5 January 1971	12.9 °C	1,036 mm	26	82
1970	33.7 °C11 August 1970	-10.5 °C5 January 1970	12.7 °C	1,345 mm	25	100
1969	32.2 °C30 July 1969	-10.6 °C6 February 1969	12.6 °C	1,358 mm	22	92
1968	32.4 °C24 July 1968	-13.3 °C9 February 1968	12.9 °C	985 mm	13	84
1967	35.2 °C9 August 1967	-14.7 °C16 January 1967	13.1 °C	998 mm	40	98
1966	33.5 °C8 August 1966	-9.2 °C24 January 1966	13.0 °C	1,047 mm	22	88
1965	31.2 °C15 July 1965	-9.0 °C17 January 1965	12.5 °C	1,426 mm	19	101
1964	32.7 °C27 July 1964	-9.7 °C23 February 1964	13.6 °C	1,046 mm	38	87
1963	32.7 °C2 August 1963	-15.2 °C5 February 1963	12.4 °C	1,791 mm	18	95
1962	31.9 °C31 July 1962	-9.8 °C2 February 1962	12.7 °C	1,441 mm	17	99
1961	33.5 °C17 July 1961	-9.8 °C3 February 1961	13.8 °C	1,256 mm	36	81
1960	33.1 °C22 July 1960	-10.2 °C24 January 1960	13.4 °C	1,411 mm	36	80
1959	32.5 °C3 August 1959	-11.1 °C17 January 1959	13.4 °C	1,548 mm	29	76
1958	33.7 °C7 August 1958	-11.2 °C1 February 1958	13.2 °C	1,386 mm	23	87
1957	31.2 °C23 July 1957	-9.1 °C11 February 1957	12.2 °C	1,417 mm	8	101
1956	34.5 °C30 July 1956	-10.4 °C9 January 1956	12.0 °C	2,131 mm	23	108
1955	32.9 °C21 July 1955	-11.1 °C11 January 1955	13.1 °C	1,075 mm	24	90
1954	34.3 °C15 August 1954	-6.6 °C3 February 1954	13.0 °C	1,584 mm	23	86
1953	33.1 °C23 August 1953	-8.6 °C4 January 1953	13.0 °C	1,272 mm	33	89
1952	32.4 °C12 August 1952	-8.6 °C3 February 1952	12.8 °C	1,151 mm	11	95
1951	31.5 °C19 August 1951	-9.2 °C13 January 1951	13.0 °C	1,095 mm	15	80
1950	31.7 °C10 August 1950	-8.9 °C7 January 1950	12.8 °C	1,113 mm	7	89
1949	31.1 °C18 July 1949	-6.9 °C9 January 1949	12.5 °C	1,351 mm	3	78
1948	30.5 °C6 August 1948	-5.6 °C18 January 1948	13.3 °C	1,269 mm	2	68
1947	30.4 °C10 August 1947	-10.8 °C3 February 1947	11.6 °C	999 mm	4	104
1946	34.2 °C28 July 1946	-8.3 °C6 January 1946	13.0 °C	694 mm	31	96
1945	30.9 °C12 August 1945	-12.3 °C17 January 1945	11.8 °C	1,133 mm	4	105
1944	31.4 °C6 August 1944	-7.9 °C16 December 1944	12.4 °C	1,177 mm	9	110
1943	30.0 °C16 August 1943	-10.4 °C1 February 1943	12.4 °C	1,035 mm	2	88
1942	33.3 °C4 August 1942	-11.4 °C13 February 1942	12.5 °C	623 mm	27	101
1941	30.4 °C7 August 1941	-11.4 °C31 January 1941	12.2 °C	723 mm	1	95
1940	30.3 °C14 July 1940	-10.0 °C10 January 1940	12.0 °C	840 mm	2	106

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

19.3 °C

+1.7 °C

Hot days (≥ 30 °C)

56 d/yr

+33

Frost days (< 0 °C)

83 d/yr

Annual rainfall

1245 mm

-63 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	6.5 °C	+1.9 °C	16 mm	-13 mm
Feb	5.4 °C	-1.2 °C	44 mm	+4 mm
Mar	13.4 °C	+1.8 °C	53 mm	-15 mm
Apr	18.8 °C	+1.4 °C	54 mm	-50 mm
May	21.8 °C	-0.2 °C	138 mm	+20 mm
Jun	27.1 °C	+2.2 °C	166 mm	-32 mm
Jul	31.1 °C	+3.2 °C	127 mm	-137 mm
Aug	31.3 °C	+2.1 °C	274 mm	+80 mm
Sep	27.7 °C	+2.3 °C	170 mm	+12 mm
Oct	22.5 °C	+2.2 °C	155 mm	+98 mm
Nov	15.7 °C	+1.9 °C	31 mm	-21 mm
Dec	9.3 °C	+2.0 °C	20 mm	-8 mm

The year's extremes

Hottest day

34.2 °C

7 Jul 2025

Coldest day

-10.4 °C

10 Jan 2025

Wettest day

109.7 mm

3 Oct 2025

Windiest day

35.3 km/h

12 Apr 2025

Strongest gust

84.6 km/h

18 Mar 2025

Hottest feels-like

41.9 °C

7 Jul 2025

Coldest feels-like

-16.2 °C

10 Jan 2025

Snowiest day

2.1 cm

27 Jan 2025

Sunniest day

13.4 h

18 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Boseong?

Boseong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.2 °C and it receives 1,308 mm of precipitation per year.

What is the hottest day ever recorded in Boseong?

The hottest day measured in Boseong between 1940 and 2025 was 20 July 1994, reaching 36.9 °C.

What is the coldest day in Boseong?

The coldest day measured in Boseong between 1940 and 2025 was 15 January 2001, at -16.2 °C.

Does it snow in Boseong?

Yes. Boseong gets on average 8.5 cm of snow per year and has around 83 frost days.

Has the climate of Boseong warmed?

Yes: Boseong warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Boseong?

The wettest day measured in Boseong between 1940 and 2025 was 24 June 1985, with 193 mm of rain in 24 hours.

What was the windiest day in Boseong?

The windiest day measured in Boseong between 1940 and 2025 was 28 August 2012, with winds reaching 69.9 km/h.

What is the warmest month in Boseong?

The warmest month in Boseong is August (25.8 °C on average); the coldest is January (0.3 °C).

How much does it rain in Boseong?

Boseong receives on average 1,308 mm of precipitation per year, spread over about 104 rainy days.

Is it sunny in Boseong?

Boseong gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

What is the biggest single-day snowfall in Boseong?

The heaviest 24-hour snowfall measured in Boseong between 1940 and 2025 was 11 February 1994, with 14.5 cm.

Are there tropical nights in Boseong?

Yes: Boseong has on average 70 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Boseong?

In Boseong, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 15 August 1954, and the lowest was -21.2 °C on 15 January 2001.

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