Fukushima climate — normals and trends

Q: What is the climate of Fukushima?

Fukushima has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,309 mm of precipitation per year.

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

The hottest day measured in Fukushima between 1940 and 2025 was 14 August 1994, reaching 35.4 °C.

Q: What is the coldest day in Fukushima?

The coldest day measured in Fukushima between 1940 and 2025 was 11 February 1942, at -18.6 °C.

Q: Does it snow in Fukushima?

Yes. Fukushima gets on average 104.4 cm of snow per year and has around 109 frost days.

Q: Has the climate of Fukushima warmed?

Yes: Fukushima warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Fukushima?

The wettest day measured in Fukushima between 1940 and 2025 was 12 October 2019, with 187 mm of rain in 24 hours.

Q: What was the windiest day in Fukushima?

The windiest day measured in Fukushima between 1940 and 2025 was 31 January 1970, with winds reaching 46.3 km/h.

Q: What is the warmest month in Fukushima?

The warmest month in Fukushima is August (23.2 °C on average); the coldest is January (-1.6 °C).

Q: How much does it rain in Fukushima?

Fukushima receives on average 1,309 mm of precipitation per year, spread over about 158 rainy days.

Q: Is it sunny in Fukushima?

Fukushima gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.

Fukushima (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.6 °C and it receives 1,309 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 (23.2 °C on average) and the coldest is January (-1.6 °C). Rainfall peaks in July.

Fukushima averages 109 frost days, 11 hot days (≥ 30 °C) and 158 rainy days per year.

Fukushima has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.

The number of frost days there went from about 127 to 91 per year over the period.

The hottest day of the period reached 35.4 °C (on 14 August 1994) and the coldest -18.6 °C (on 11 February 1942).

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

FukushimaFukushima

coords: 37.75°, 140.47°
period: 1940–2025 · 86 yrs

DfaHot-summer humid continentalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthJanuary

Mean daily temperature

10.6°C

Average daily high

14.7°C

Average daily low

6.8°C

Annual rainfall

1,309mm

Sunshine / day

8.2h

Mean relative humidity

76%

Average peak wind

13.2km/h

Seasonal range

24.8°C

Frost days (< 0 °C)

109 d/yr

Hot days (≥ 30 °C)

11 d/yr

Rainy days (≥ 1 mm)

158 d/yr

Annual snowfall

104.4 cm

Average feels-like high

13.5 °C

Average feels-like low

5.1 °C

Average peak gust

39.4 km/h

Tropical nights (≥ 20 °C)

34 d/yr

Solar radiation

13.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.7 °C

since 1940

+0.3 °C per decade · r² = 0.64 · 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

35.4 °C

14 August 1994

Coldest day

-18.6 °C

11 February 1942

Wettest day

187 mm

12 October 2019

Windiest day

46.3 km/h

31 January 1970

Strongest gust

151.2 km/h

27 September 1959

Hottest feels-like

41.0 °C

21 July 2025

Coldest feels-like

-23.5 °C

11 February 1942

Snowiest day

60.1 cm

24 December 1980

Sunniest day

14.3 h

17 June 1953

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.7 °C2 September 2025	-7.0 °C27 December 2025	12.2 °C	1,238 mm	48	100
2024	33.7 °C7 July 2024	-7.1 °C7 February 2024	13.1 °C	1,395 mm	31	94
2023	33.6 °C5 August 2023	-10.3 °C29 January 2023	13.1 °C	1,297 mm	48	80
2022	32.8 °C31 July 2022	-8.8 °C20 December 2022	11.9 °C	1,211 mm	19	103
2021	32.8 °C3 August 2021	-11.1 °C9 January 2021	12.0 °C	1,436 mm	15	83
2020	34.0 °C11 August 2020	-7.7 °C7 February 2020	12.2 °C	1,504 mm	20	76
2019	33.0 °C5 August 2019	-8.0 °C27 January 2019	12.0 °C	1,418 mm	25	100
2018	34.9 °C1 August 2018	-10.1 °C31 January 2018	12.1 °C	1,121 mm	32	91
2017	32.8 °C11 July 2017	-13.0 °C25 January 2017	11.2 °C	1,348 mm	11	109
2016	32.7 °C21 August 2016	-11.2 °C20 January 2016	12.1 °C	1,408 mm	12	91
2015	34.5 °C5 August 2015	-9.4 °C19 January 2015	12.0 °C	1,392 mm	16	86
2014	33.1 °C26 July 2014	-12.8 °C14 February 2014	11.0 °C	1,508 mm	11	98
2013	32.5 °C10 August 2013	-13.2 °C18 January 2013	11.2 °C	1,229 mm	14	108
2012	32.5 °C5 August 2012	-12.6 °C1 February 2012	10.8 °C	1,275 mm	31	117
2011	33.1 °C10 August 2011	-7.6 °C31 January 2011	11.1 °C	1,266 mm	24	123
2010	33.0 °C27 July 2010	-10.3 °C13 February 2010	11.6 °C	1,504 mm	36	103
2009	32.1 °C15 July 2009	-8.1 °C24 February 2009	11.5 °C	1,351 mm	4	90
2008	32.5 °C3 August 2008	-6.7 °C4 February 2008	11.3 °C	1,323 mm	5	100
2007	33.3 °C15 August 2007	-6.0 °C25 February 2007	11.7 °C	1,419 mm	17	92
2006	31.8 °C19 August 2006	-9.9 °C4 February 2006	11.3 °C	1,550 mm	6	89
2005	32.6 °C6 August 2005	-13.4 °C6 March 2005	10.9 °C	1,227 mm	12	114
2004	32.2 °C24 July 2004	-10.2 °C8 February 2004	11.9 °C	1,368 mm	20	88
2003	31.3 °C23 August 2003	-9.2 °C16 January 2003	10.8 °C	1,280 mm	3	96
2002	33.6 °C26 July 2002	-9.1 °C13 December 2002	11.2 °C	1,389 mm	16	88
2001	32.6 °C5 July 2001	-12.4 °C14 January 2001	10.8 °C	1,198 mm	9	102
2000	32.7 °C23 July 2000	-9.8 °C18 February 2000	11.4 °C	1,314 mm	16	101
1999	32.8 °C26 July 1999	-10.1 °C15 February 1999	11.6 °C	1,470 mm	23	104
1998	32.4 °C3 July 1998	-11.3 °C25 January 1998	11.5 °C	1,494 mm	2	99
1997	33.1 °C9 August 1997	-9.9 °C22 January 1997	11.1 °C	1,258 mm	6	101
1996	32.3 °C26 July 1996	-11.1 °C2 February 1996	10.3 °C	1,211 mm	10	110
1995	32.7 °C28 July 1995	-9.6 °C12 February 1995	10.8 °C	1,181 mm	18	108
1994	35.4 °C14 August 1994	-12.0 °C31 January 1994	11.8 °C	1,066 mm	30	110
1993	29.5 °C25 August 1993	-8.2 °C20 January 1993	10.3 °C	1,497 mm	0	101
1992	32.9 °C30 July 1992	-9.7 °C23 March 1992	10.8 °C	1,058 mm	9	104
1991	31.8 °C12 June 1991	-10.6 °C23 February 1991	11.2 °C	1,424 mm	7	99
1990	33.9 °C23 August 1990	-12.4 °C21 January 1990	12.2 °C	1,228 mm	25	77
1989	30.2 °C24 July 1989	-10.0 °C9 March 1989	11.3 °C	1,341 mm	2	77
1988	30.3 °C23 August 1988	-13.5 °C22 February 1988	9.8 °C	1,497 mm	1	123
1987	32.5 °C6 June 1987	-11.1 °C21 February 1987	11.0 °C	1,012 mm	8	111
1986	32.5 °C29 July 1986	-14.0 °C8 February 1986	9.8 °C	1,322 mm	8	116
1985	33.0 °C18 August 1985	-14.0 °C18 January 1985	10.4 °C	1,448 mm	23	112
1984	32.8 °C12 August 1984	-13.5 °C8 January 1984	9.4 °C	917 mm	19	127
1983	31.7 °C7 August 1983	-12.6 °C23 January 1983	10.1 °C	1,487 mm	6	115
1982	29.5 °C14 August 1982	-10.4 °C13 February 1982	10.8 °C	1,279 mm	0	97
1981	30.9 °C18 July 1981	-12.5 °C14 January 1981	9.4 °C	1,222 mm	8	128
1980	30.5 °C22 July 1980	-12.0 °C17 February 1980	9.8 °C	1,485 mm	1	118
1979	32.3 °C1 August 1979	-9.3 °C29 January 1979	11.3 °C	1,638 mm	5	99
1978	32.5 °C2 August 1978	-10.7 °C17 February 1978	10.6 °C	1,265 mm	21	114
1977	31.3 °C5 August 1977	-12.7 °C5 January 1977	10.3 °C	1,352 mm	5	96
1976	30.7 °C25 July 1976	-16.2 °C14 February 1976	9.6 °C	1,860 mm	3	121
1975	32.2 °C5 August 1975	-11.6 °C18 February 1975	10.5 °C	1,286 mm	19	114
1974	30.2 °C6 August 1974	-11.5 °C29 January 1974	9.7 °C	1,575 mm	2	127
1973	33.2 °C18 August 1973	-8.0 °C24 December 1973	10.7 °C	1,007 mm	21	121
1972	31.6 °C6 August 1972	-11.6 °C9 February 1972	11.0 °C	1,724 mm	9	98
1971	32.6 °C29 July 1971	-10.6 °C3 February 1971	10.1 °C	1,572 mm	11	113
1970	32.3 °C26 July 1970	-12.8 °C3 March 1970	9.9 °C	1,157 mm	9	125
1969	32.0 °C4 August 1969	-13.3 °C26 February 1969	10.1 °C	1,417 mm	3	119
1968	32.3 °C20 July 1968	-14.2 °C24 February 1968	10.5 °C	1,319 mm	7	96
1967	31.8 °C10 August 1967	-16.9 °C15 February 1967	10.5 °C	1,361 mm	8	113
1966	29.9 °C27 July 1966	-12.8 °C25 January 1966	9.8 °C	1,420 mm	0	130
1965	30.0 °C6 August 1965	-10.4 °C13 January 1965	9.5 °C	1,058 mm	1	137
1964	32.2 °C16 August 1964	-8.8 °C13 February 1964	10.5 °C	1,554 mm	12	120
1963	32.1 °C10 August 1963	-12.5 °C25 January 1963	10.5 °C	1,141 mm	6	108
1962	32.9 °C3 August 1962	-9.7 °C27 January 1962	10.8 °C	1,189 mm	12	114
1961	32.6 °C26 July 1961	-12.6 °C18 January 1961	11.2 °C	1,530 mm	16	112
1960	32.5 °C22 July 1960	-11.6 °C25 January 1960	10.7 °C	1,384 mm	14	107
1959	31.4 °C28 August 1959	-11.0 °C9 January 1959	11.0 °C	1,570 mm	4	96
1958	31.2 °C17 July 1958	-10.7 °C25 January 1958	10.6 °C	1,648 mm	5	112
1957	31.4 °C23 August 1957	-11.8 °C9 January 1957	10.2 °C	1,299 mm	4	113
1956	31.7 °C1 August 1956	-11.3 °C27 February 1956	9.9 °C	1,504 mm	8	126
1955	33.0 °C30 July 1955	-11.1 °C17 January 1955	11.0 °C	1,414 mm	16	104
1954	31.5 °C15 August 1954	-11.5 °C14 March 1954	10.3 °C	1,146 mm	5	103
1953	30.9 °C27 July 1953	-11.4 °C28 January 1953	9.9 °C	1,308 mm	4	110
1952	30.5 °C3 August 1952	-15.4 °C10 January 1952	8.7 °C	1,165 mm	1	127
1951	31.4 °C9 August 1951	-14.0 °C14 January 1951	9.4 °C	1,066 mm	9	118
1950	30.3 °C8 July 1950	-15.9 °C6 January 1950	9.9 °C	1,104 mm	3	123
1949	30.3 °C17 July 1949	-11.9 °C30 December 1949	9.6 °C	1,089 mm	2	129
1948	30.0 °C27 July 1948	-12.3 °C1 February 1948	10.1 °C	1,000 mm	1	119
1947	30.9 °C14 August 1947	-15.7 °C29 January 1947	8.4 °C	1,162 mm	3	145
1946	30.9 °C18 July 1946	-13.4 °C10 February 1946	9.5 °C	1,002 mm	4	133
1945	30.6 °C6 August 1945	-17.3 °C27 January 1945	8.6 °C	1,526 mm	2	127
1944	30.3 °C5 August 1944	-15.0 °C17 January 1944	9.5 °C	1,127 mm	2	134
1943	28.5 °C4 August 1943	-13.1 °C18 January 1943	9.1 °C	734 mm	0	137
1942	31.4 °C11 July 1942	-18.6 °C11 February 1942	9.5 °C	820 mm	8	133
1941	30.2 °C24 August 1941	-14.2 °C1 February 1941	9.1 °C	1,180 mm	1	128
1940	29.7 °C18 July 1940	-16.9 °C27 January 1940	8.8 °C	1,062 mm	0	133

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

16.7 °C

+2.0 °C

Hot days (≥ 30 °C)

48 d/yr

+37

Frost days (< 0 °C)

100 d/yr

-9

Annual rainfall

1238 mm

-71 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	3.8 °C	+1.5 °C	51 mm	-3 mm
Feb	3.0 °C	-0.1 °C	37 mm	-20 mm
Mar	9.2 °C	+2.1 °C	88 mm	+5 mm
Apr	14.9 °C	+1.1 °C	106 mm	+14 mm
May	19.4 °C	+0.5 °C	171 mm	+68 mm
Jun	26.3 °C	+4.5 °C	100 mm	-44 mm
Jul	30.1 °C	+4.6 °C	81 mm	-105 mm
Aug	29.8 °C	+2.8 °C	176 mm	+14 mm
Sep	26.0 °C	+3.2 °C	139 mm	-35 mm
Oct	17.7 °C	+0.7 °C	167 mm	+39 mm
Nov	12.5 °C	+1.2 °C	52 mm	-17 mm
Dec	7.1 °C	+1.8 °C	71 mm	+14 mm

The year's extremes

Hottest day

34.7 °C

2 Sep 2025

Coldest day

-7.0 °C

27 Dec 2025

Wettest day

56.3 mm

12 Aug 2025

Windiest day

32.7 km/h

13 Feb 2025

Strongest gust

96.5 km/h

17 Mar 2025

Hottest feels-like

41.0 °C

21 Jul 2025

Coldest feels-like

-11.1 °C

27 Dec 2025

Snowiest day

6.9 cm

5 Mar 2025

Sunniest day

14.1 h

5 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 Fukushima?

Fukushima has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,309 mm of precipitation per year.

What is the hottest day ever recorded in Fukushima?

The hottest day measured in Fukushima between 1940 and 2025 was 14 August 1994, reaching 35.4 °C.

What is the coldest day in Fukushima?

The coldest day measured in Fukushima between 1940 and 2025 was 11 February 1942, at -18.6 °C.

Does it snow in Fukushima?

Yes. Fukushima gets on average 104.4 cm of snow per year and has around 109 frost days.

Has the climate of Fukushima warmed?

Yes: Fukushima warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Fukushima?

The wettest day measured in Fukushima between 1940 and 2025 was 12 October 2019, with 187 mm of rain in 24 hours.

What was the windiest day in Fukushima?

The windiest day measured in Fukushima between 1940 and 2025 was 31 January 1970, with winds reaching 46.3 km/h.

What is the warmest month in Fukushima?

The warmest month in Fukushima is August (23.2 °C on average); the coldest is January (-1.6 °C).

How much does it rain in Fukushima?

Fukushima receives on average 1,309 mm of precipitation per year, spread over about 158 rainy days.

Is it sunny in Fukushima?

Fukushima gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.

What is the biggest single-day snowfall in Fukushima?

The heaviest 24-hour snowfall measured in Fukushima between 1940 and 2025 was 24 December 1980, with 60.1 cm.

Are there tropical nights in Fukushima?

Yes: Fukushima has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Fukushima?

In Fukushima, between 1940 and 2025, the highest apparent temperature reached 41.0 °C on 21 July 2025, and the lowest was -23.5 °C on 11 February 1942.

Compare Fukushima with another city

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