Sendai climate — normals and trends

Q: What is the climate of Sendai?

Sendai has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.1 °C and it receives 2,156 mm of precipitation per year.

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

The hottest day measured in Sendai between 1940 and 2025 was 8 July 2025, reaching 33.8 °C.

Q: What is the coldest day in Sendai?

The coldest day measured in Sendai between 1940 and 2025 was 16 February 1977, at -0.6 °C.

Q: Does it snow in Sendai?

Almost never: Sendai sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Sendai warmed?

Yes: Sendai warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Sendai?

The wettest day measured in Sendai between 1940 and 2025 was 19 July 1976, with 268 mm of rain in 24 hours.

Q: What was the windiest day in Sendai?

The windiest day measured in Sendai between 1940 and 2025 was 27 September 1991, with winds reaching 83.5 km/h.

Q: What is the warmest month in Sendai?

The warmest month in Sendai is August (27.5 °C on average); the coldest is January (9.2 °C).

Q: How much does it rain in Sendai?

Sendai receives on average 2,156 mm of precipitation per year, spread over about 162 rainy days.

Q: Is it sunny in Sendai?

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

Sendai (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.1 °C and it receives 2,156 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 (27.5 °C on average) and the coldest is January (9.2 °C). Rainfall peaks in June.

Sendai averages 0 frost days, 21 hot days (≥ 30 °C) and 162 rainy days per year.

Sendai has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 33.8 °C (on 8 July 2025) and the coldest -0.6 °C (on 16 February 1977).

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

SendaiKagoshima

coords: 31.82°, 130.30°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJuneDriest monthDecember

Mean daily temperature

18.1°C

Average daily high

20.2°C

Average daily low

16.3°C

Annual rainfall

2,156mm

Sunshine / day

8.2h

Mean relative humidity

76%

Average peak wind

19.8km/h

Seasonal range

18.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

21 d/yr

Rainy days (≥ 1 mm)

162 d/yr

Annual snowfall

1.0 cm

Average feels-like high

20.6 °C

Average feels-like low

15.8 °C

Average peak gust

37.1 km/h

Tropical nights (≥ 20 °C)

130 d/yr

Solar radiation

14.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.65 · 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

33.8 °C

8 July 2025

Coldest day

-0.6 °C

16 February 1977

Wettest day

268 mm

19 July 1976

Windiest day

83.5 km/h

27 September 1991

Strongest gust

172.8 km/h

27 September 1991

Hottest feels-like

42.1 °C

5 August 2024

Coldest feels-like

-7.8 °C

26 February 1981

Snowiest day

3.5 cm

24 January 2016

Sunniest day

13.6 h

12 June 1951

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	33.8 °C8 July 2025	2.7 °C8 February 2025	19.1 °C	1,918 mm	60	0
2024	33.7 °C5 August 2024	4.3 °C24 January 2024	19.9 °C	2,753 mm	66	0
2023	32.1 °C16 August 2023	1.0 °C25 January 2023	19.4 °C	2,323 mm	43	0
2022	32.4 °C30 August 2022	3.8 °C17 February 2022	19.0 °C	2,055 mm	43	0
2021	32.6 °C5 August 2021	2.0 °C8 January 2021	19.2 °C	2,477 mm	18	0
2020	32.8 °C31 August 2020	4.0 °C31 December 2020	19.0 °C	2,826 mm	33	0
2019	33.1 °C2 August 2019	5.4 °C27 January 2019	19.2 °C	2,133 mm	29	0
2018	33.1 °C19 July 2018	1.6 °C27 January 2018	18.9 °C	2,475 mm	42	0
2017	33.4 °C31 July 2017	3.6 °C25 January 2017	18.6 °C	2,182 mm	41	0
2016	33.3 °C21 August 2016	1.0 °C25 January 2016	19.4 °C	3,200 mm	45	0
2015	32.6 °C6 August 2015	3.4 °C9 February 2015	18.6 °C	3,003 mm	12	0
2014	31.8 °C29 July 2014	4.5 °C19 December 2014	18.4 °C	2,373 mm	11	0
2013	33.2 °C19 August 2013	2.6 °C8 February 2013	18.9 °C	1,863 mm	37	0
2012	32.1 °C18 August 2012	1.8 °C3 February 2012	18.2 °C	2,734 mm	25	0
2011	32.0 °C30 August 2011	1.4 °C16 January 2011	18.3 °C	2,276 mm	22	0
2010	33.1 °C19 August 2010	2.5 °C31 December 2010	18.8 °C	2,443 mm	33	0
2009	31.6 °C20 August 2009	2.9 °C24 January 2009	18.9 °C	1,858 mm	26	0
2008	31.9 °C31 July 2008	3.9 °C18 February 2008	18.7 °C	2,046 mm	28	0
2007	31.5 °C16 August 2007	3.9 °C2 February 2007	19.2 °C	1,851 mm	31	0
2006	32.9 °C9 August 2006	3.1 °C4 February 2006	18.9 °C	2,270 mm	40	0
2005	32.0 °C24 July 2005	3.0 °C18 December 2005	18.3 °C	1,817 mm	20	0
2004	32.6 °C27 August 2004	2.3 °C22 January 2004	19.0 °C	2,122 mm	33	0
2003	31.7 °C4 September 2003	3.6 °C29 January 2003	18.8 °C	2,160 mm	24	0
2002	31.4 °C31 July 2002	5.4 °C2 January 2002	18.7 °C	1,936 mm	19	0
2001	32.5 °C3 August 2001	2.7 °C15 January 2001	18.7 °C	2,137 mm	33	0
2000	31.2 °C6 August 2000	3.3 °C8 February 2000	18.5 °C	2,062 mm	24	0
1999	30.4 °C12 August 1999	2.7 °C4 February 1999	18.6 °C	2,243 mm	5	0
1998	31.3 °C7 August 1998	3.2 °C25 January 1998	19.6 °C	2,563 mm	28	0
1997	30.9 °C15 August 1997	3.1 °C22 January 1997	18.4 °C	2,202 mm	10	0
1996	32.8 °C5 August 1996	2.5 °C2 February 1996	18.0 °C	1,901 mm	26	0
1995	31.8 °C23 August 1995	2.9 °C31 January 1995	17.8 °C	2,028 mm	21	0
1994	33.7 °C17 July 1994	3.4 °C24 January 1994	18.8 °C	1,586 mm	40	0
1993	30.3 °C31 August 1993	3.4 °C25 February 1993	17.9 °C	3,659 mm	3	0
1992	31.3 °C2 August 1992	4.4 °C17 February 1992	18.3 °C	2,109 mm	14	0
1991	32.0 °C18 August 1991	2.2 °C23 February 1991	18.3 °C	2,466 mm	17	0
1990	32.4 °C21 July 1990	2.7 °C26 January 1990	18.8 °C	2,614 mm	36	0
1989	30.8 °C4 August 1989	3.8 °C28 January 1989	18.4 °C	2,105 mm	14	0
1988	30.9 °C9 August 1988	3.4 °C4 February 1988	18.1 °C	1,932 mm	10	0
1987	31.5 °C29 August 1987	3.0 °C28 February 1987	18.3 °C	2,446 mm	7	0
1986	32.2 °C17 August 1986	2.0 °C5 January 1986	17.7 °C	1,745 mm	21	0
1985	32.1 °C29 August 1985	1.5 °C15 January 1985	18.1 °C	2,085 mm	24	0
1984	31.8 °C8 August 1984	1.4 °C3 February 1984	17.6 °C	1,672 mm	18	0
1983	31.4 °C10 August 1983	2.3 °C14 February 1983	18.2 °C	2,530 mm	11	0
1982	30.9 °C27 July 1982	1.7 °C30 January 1982	17.9 °C	2,180 mm	8	0
1981	32.1 °C19 August 1981	0.1 °C26 February 1981	17.7 °C	1,789 mm	19	0
1980	30.5 °C21 July 1980	2.9 °C8 January 1980	17.7 °C	2,580 mm	4	0
1979	31.8 °C31 July 1979	3.7 °C1 February 1979	18.1 °C	2,296 mm	21	0
1978	31.9 °C26 July 1978	2.7 °C18 February 1978	18.2 °C	1,695 mm	25	0
1977	31.7 °C28 July 1977	-0.6 °C16 February 1977	18.1 °C	2,093 mm	15	1
1976	31.8 °C20 August 1976	1.6 °C24 January 1976	17.6 °C	2,867 mm	9	0
1975	31.6 °C20 August 1975	1.9 °C21 February 1975	18.2 °C	2,357 mm	13	0
1974	31.5 °C16 August 1974	2.2 °C27 February 1974	17.6 °C	1,990 mm	13	0
1973	32.3 °C13 August 1973	2.6 °C24 December 1973	18.0 °C	2,088 mm	19	0
1972	30.6 °C31 July 1972	3.3 °C1 March 1972	18.1 °C	2,913 mm	11	0
1971	32.8 °C1 August 1971	2.5 °C5 January 1971	17.9 °C	2,418 mm	11	0
1970	31.6 °C11 August 1970	2.3 °C5 January 1970	17.5 °C	2,426 mm	21	0
1969	32.2 °C8 August 1969	2.3 °C16 January 1969	17.8 °C	2,422 mm	28	0
1968	31.6 °C25 July 1968	2.5 °C2 February 1968	17.6 °C	2,370 mm	15	0
1967	32.7 °C18 August 1967	1.1 °C16 January 1967	18.1 °C	1,754 mm	41	0
1966	31.6 °C8 August 1966	2.8 °C5 February 1966	17.9 °C	2,296 mm	19	0
1965	31.2 °C20 August 1965	3.0 °C4 February 1965	17.2 °C	2,167 mm	10	0
1964	32.2 °C12 August 1964	3.6 °C14 February 1964	18.6 °C	2,201 mm	25	0
1963	31.1 °C19 July 1963	2.2 °C16 January 1963	17.7 °C	1,916 mm	16	0
1962	31.5 °C30 July 1962	2.3 °C27 January 1962	17.7 °C	2,161 mm	17	0
1961	32.0 °C19 July 1961	2.5 °C13 January 1961	18.4 °C	1,980 mm	40	0
1960	31.6 °C27 August 1960	1.8 °C25 January 1960	18.2 °C	1,889 mm	33	0
1959	31.8 °C3 August 1959	1.5 °C17 January 1959	18.3 °C	2,359 mm	12	0
1958	31.3 °C21 July 1958	2.8 °C4 January 1958	18.3 °C	1,825 mm	21	0
1957	31.0 °C17 August 1957	2.4 °C15 March 1957	17.4 °C	2,401 mm	6	0
1956	31.8 °C30 July 1956	2.1 °C19 February 1956	17.4 °C	2,006 mm	20	0
1955	30.9 °C11 August 1955	2.2 °C21 February 1955	18.1 °C	2,025 mm	10	0
1954	32.2 °C23 August 1954	3.7 °C26 January 1954	18.2 °C	2,191 mm	21	0
1953	32.3 °C15 August 1953	3.1 °C17 January 1953	17.9 °C	2,110 mm	19	0
1952	30.7 °C14 August 1952	2.1 °C6 February 1952	17.9 °C	2,208 mm	5	0
1951	31.8 °C15 August 1951	2.3 °C14 January 1951	17.6 °C	2,223 mm	10	0
1950	30.7 °C3 August 1950	3.3 °C12 March 1950	17.7 °C	1,796 mm	1	0
1949	29.8 °C7 August 1949	3.6 °C9 January 1949	17.6 °C	2,292 mm	0	0
1948	30.7 °C20 August 1948	3.9 °C27 January 1948	17.9 °C	1,972 mm	3	0
1947	31.9 °C14 August 1947	1.5 °C16 February 1947	16.7 °C	1,408 mm	7	0
1946	31.9 °C26 July 1946	2.8 °C10 January 1946	17.8 °C	1,443 mm	11	0
1945	30.8 °C8 August 1945	2.7 °C17 January 1945	17.2 °C	2,333 mm	8	0
1944	31.0 °C14 August 1944	3.0 °C16 February 1944	17.4 °C	1,423 mm	5	0
1943	30.2 °C15 August 1943	2.1 °C12 January 1943	17.2 °C	1,158 mm	2	0
1942	31.7 °C4 August 1942	1.0 °C13 February 1942	17.5 °C	1,382 mm	31	0
1941	31.0 °C19 August 1941	1.1 °C1 February 1941	17.4 °C	1,547 mm	4	0
1940	31.2 °C29 July 1940	2.6 °C26 January 1940	16.9 °C	1,276 mm	2	0

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

21.3 °C

+1.1 °C

Hot days (≥ 30 °C)

60 d/yr

+39

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1918 mm

-238 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	11.5 °C	+0.4 °C	73 mm	-22 mm
Feb	10.2 °C	-1.4 °C	94 mm	-18 mm
Mar	15.1 °C	+0.8 °C	137 mm	-16 mm
Apr	18.5 °C	+0.2 °C	149 mm	-38 mm
May	22.1 °C	+0.3 °C	354 mm	+125 mm
Jun	26.6 °C	+1.9 °C	325 mm	-105 mm
Jul	30.4 °C	+2.1 °C	82 mm	-195 mm
Aug	30.5 °C	+1.0 °C	299 mm	+122 mm
Sep	29.7 °C	+2.3 °C	163 mm	-31 mm
Oct	26.2 °C	+3.1 °C	135 mm	+23 mm
Nov	19.2 °C	+0.9 °C	48 mm	-55 mm
Dec	15.1 °C	+1.7 °C	62 mm	-29 mm

The year's extremes

Hottest day

33.8 °C

8 Jul 2025

Coldest day

2.7 °C

8 Feb 2025

Wettest day

98.4 mm

21 May 2025

Windiest day

44.7 km/h

17 Mar 2025

Strongest gust

81.4 km/h

7 Feb 2025

Hottest feels-like

41.0 °C

1 Aug 2025

Coldest feels-like

-5.2 °C

8 Feb 2025

Snowiest day

0.2 cm

8 Feb 2025

Sunniest day

13.5 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 Sendai?

Sendai has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.1 °C and it receives 2,156 mm of precipitation per year.

What is the hottest day ever recorded in Sendai?

The hottest day measured in Sendai between 1940 and 2025 was 8 July 2025, reaching 33.8 °C.

What is the coldest day in Sendai?

The coldest day measured in Sendai between 1940 and 2025 was 16 February 1977, at -0.6 °C.

Does it snow in Sendai?

Almost never: Sendai sees virtually no snow, with about 0 frost days per year.

Has the climate of Sendai warmed?

Yes: Sendai warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Sendai?

The wettest day measured in Sendai between 1940 and 2025 was 19 July 1976, with 268 mm of rain in 24 hours.

What was the windiest day in Sendai?

The windiest day measured in Sendai between 1940 and 2025 was 27 September 1991, with winds reaching 83.5 km/h.

What is the warmest month in Sendai?

The warmest month in Sendai is August (27.5 °C on average); the coldest is January (9.2 °C).

How much does it rain in Sendai?

Sendai receives on average 2,156 mm of precipitation per year, spread over about 162 rainy days.

Is it sunny in Sendai?

Sendai 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 Sendai?

The heaviest 24-hour snowfall measured in Sendai between 1940 and 2025 was 24 January 2016, with 3.5 cm.

Are there tropical nights in Sendai?

Yes: Sendai has on average 130 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Sendai?

In Sendai, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 5 August 2024, and the lowest was -7.8 °C on 26 February 1981.

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