Susaki climate — normals and trends

Q: What is the climate of Susaki?

Susaki has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 2,547 mm of precipitation per year.

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

The hottest day measured in Susaki between 1940 and 2025 was 16 August 2020, reaching 35.8 °C.

Q: What is the coldest day in Susaki?

The coldest day measured in Susaki between 1940 and 2025 was 23 February 1953, at -8.7 °C.

Q: Does it snow in Susaki?

Yes. Susaki gets on average 10.8 cm of snow per year and has around 43 frost days.

Q: Has the climate of Susaki warmed?

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

Q: What is the wettest day in Susaki?

The wettest day measured in Susaki between 1940 and 2025 was 17 August 1975, with 287 mm of rain in 24 hours.

Q: What was the windiest day in Susaki?

The windiest day measured in Susaki between 1940 and 2025 was 30 August 2004, with winds reaching 61.3 km/h.

Q: What is the warmest month in Susaki?

The warmest month in Susaki is August (25.3 °C on average); the coldest is January (3.6 °C).

Q: How much does it rain in Susaki?

Susaki receives on average 2,547 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in Susaki?

Susaki gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Susaki (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 2,547 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 (25.3 °C on average) and the coldest is January (3.6 °C). Rainfall peaks in July.

Susaki averages 43 frost days, 22 hot days (≥ 30 °C) and 167 rainy days per year.

Susaki 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 66 to 20 per year over the period.

The hottest day of the period reached 35.8 °C (on 16 August 2020) and the coldest -8.7 °C (on 23 February 1953).

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

SusakiKochi

coords: 33.39°, 133.29°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthJanuary

Mean daily temperature

14.5°C

Average daily high

18.7°C

Average daily low

10.7°C

Annual rainfall

2,547mm

Sunshine / day

8.9h

Mean relative humidity

77%

Average peak wind

12.4km/h

Seasonal range

21.7°C

Frost days (< 0 °C)

43 d/yr

Hot days (≥ 30 °C)

22 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

10.8 cm

Average feels-like high

18.8 °C

Average feels-like low

9.9 °C

Average peak gust

38.0 km/h

Tropical nights (≥ 20 °C)

76 d/yr

Solar radiation

15.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.7 °C

since 1940

+0.3 °C per decade · r² = 0.74 · 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

35.8 °C

16 August 2020

Coldest day

-8.7 °C

23 February 1953

Wettest day

287 mm

17 August 1975

Windiest day

61.3 km/h

30 August 2004

Strongest gust

184.0 km/h

13 September 1954

Hottest feels-like

42.4 °C

16 August 2024

Coldest feels-like

-14.5 °C

26 February 1981

Snowiest day

24.2 cm

15 February 1968

Sunniest day

14.0 h

3 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.0 °C6 August 2025	-6.8 °C7 February 2025	15.4 °C	2,169 mm	62	49
2024	35.0 °C16 August 2024	-2.5 °C24 January 2024	16.6 °C	2,751 mm	62	23
2023	33.3 °C4 September 2023	-5.4 °C25 January 2023	16.0 °C	2,303 mm	29	29
2022	34.2 °C4 August 2022	-2.8 °C25 February 2022	15.8 °C	2,024 mm	46	34
2021	33.1 °C27 July 2021	-5.2 °C9 January 2021	15.8 °C	2,781 mm	27	22
2020	35.8 °C16 August 2020	-1.4 °C19 February 2020	15.9 °C	2,810 mm	36	12
2019	32.8 °C1 August 2019	-1.3 °C4 January 2019	15.9 °C	2,862 mm	25	11
2018	34.1 °C24 July 2018	-5.2 °C9 February 2018	15.6 °C	3,173 mm	35	35
2017	33.3 °C24 August 2017	-3.2 °C26 January 2017	15.1 °C	2,714 mm	37	31
2016	33.1 °C8 August 2016	-5.7 °C24 January 2016	16.2 °C	2,798 mm	33	17
2015	33.6 °C30 July 2015	-2.1 °C9 February 2015	15.6 °C	2,893 mm	25	20
2014	33.5 °C24 July 2014	-2.3 °C19 December 2014	15.0 °C	2,897 mm	12	27
2013	34.3 °C25 July 2013	-2.0 °C4 January 2013	15.4 °C	2,396 mm	41	26
2012	32.2 °C28 July 2012	-4.7 °C3 February 2012	14.8 °C	3,030 mm	14	33
2011	32.4 °C11 August 2011	-5.0 °C16 January 2011	15.1 °C	2,829 mm	26	36
2010	33.4 °C1 August 2010	-2.7 °C14 January 2010	15.5 °C	2,662 mm	34	19
2009	32.8 °C19 July 2009	-2.1 °C24 January 2009	15.5 °C	2,098 mm	15	11
2008	33.1 °C18 July 2008	-1.9 °C25 February 2008	15.2 °C	2,293 mm	25	23
2007	33.1 °C28 July 2007	-2.2 °C3 February 2007	15.6 °C	2,196 mm	27	11
2006	33.6 °C8 August 2006	-3.1 °C4 February 2006	15.3 °C	2,850 mm	23	28
2005	32.9 °C12 August 2005	-3.7 °C18 December 2005	14.8 °C	1,802 mm	24	49
2004	34.2 °C30 July 2004	-5.2 °C22 January 2004	15.7 °C	3,501 mm	24	33
2003	33.6 °C3 September 2003	-4.2 °C29 January 2003	15.2 °C	2,989 mm	30	30
2002	33.7 °C16 July 2002	-2.5 °C2 January 2002	15.3 °C	2,123 mm	22	23
2001	33.9 °C24 July 2001	-5.5 °C15 January 2001	15.1 °C	2,415 mm	36	33
2000	34.8 °C22 July 2000	-2.9 °C28 February 2000	15.3 °C	2,636 mm	30	28
1999	32.4 °C28 August 1999	-6.3 °C4 February 1999	15.2 °C	2,961 mm	15	31
1998	34.8 °C12 August 1998	-7.5 °C25 January 1998	16.3 °C	3,029 mm	42	20
1997	32.5 °C5 July 1997	-4.7 °C22 January 1997	15.0 °C	2,142 mm	26	41
1996	33.2 °C15 August 1996	-4.8 °C2 February 1996	14.4 °C	2,029 mm	27	52
1995	33.6 °C9 August 1995	-3.2 °C31 January 1995	14.5 °C	1,908 mm	47	40
1994	34.4 °C15 July 1994	-4.1 °C24 January 1994	15.5 °C	1,987 mm	37	34
1993	31.4 °C11 August 1993	-3.8 °C3 February 1993	14.5 °C	3,184 mm	8	28
1992	33.3 °C23 July 1992	-3.4 °C2 February 1992	14.9 °C	2,663 mm	19	22
1991	34.8 °C24 July 1991	-6.4 °C25 February 1991	15.3 °C	2,768 mm	29	33
1990	34.6 °C19 July 1990	-6.1 °C26 January 1990	15.5 °C	3,347 mm	38	19
1989	31.4 °C10 August 1989	-2.4 °C30 January 1989	15.0 °C	2,853 mm	9	22
1988	32.6 °C10 July 1988	-4.3 °C4 February 1988	14.4 °C	2,320 mm	19	39
1987	31.6 °C28 August 1987	-3.8 °C3 March 1987	14.9 °C	2,639 mm	18	33
1986	32.4 °C3 September 1986	-4.0 °C13 February 1986	14.1 °C	1,940 mm	20	56
1985	32.1 °C13 July 1985	-5.4 °C31 January 1985	14.5 °C	2,378 mm	14	44
1984	32.4 °C9 August 1984	-8.0 °C8 February 1984	13.8 °C	2,109 mm	24	72
1983	34.1 °C3 August 1983	-5.5 °C22 February 1983	14.7 °C	2,180 mm	32	50
1982	30.7 °C5 August 1982	-4.4 °C9 February 1982	14.4 °C	3,020 mm	5	46
1981	31.9 °C30 July 1981	-8.6 °C26 February 1981	13.8 °C	2,039 mm	18	63
1980	31.9 °C20 July 1980	-5.4 °C12 January 1980	14.0 °C	3,112 mm	7	58
1979	33.1 °C30 July 1979	-4.2 °C2 March 1979	14.6 °C	2,907 mm	22	33
1978	33.7 °C4 July 1978	-6.7 °C1 February 1978	14.5 °C	2,151 mm	20	50
1977	33.4 °C14 July 1977	-8.5 °C19 February 1977	14.6 °C	2,860 mm	25	57
1976	33.7 °C14 August 1976	-6.4 °C25 January 1976	13.8 °C	3,138 mm	14	49
1975	32.3 °C22 July 1975	-5.1 °C24 February 1975	14.4 °C	3,440 mm	13	44
1974	32.7 °C15 August 1974	-5.5 °C12 February 1974	14.0 °C	2,581 mm	12	60
1973	32.9 °C21 July 1973	-3.7 °C25 December 1973	14.2 °C	2,311 mm	25	53
1972	33.4 °C3 August 1972	-5.2 °C2 March 1972	14.3 °C	3,522 mm	16	47
1971	33.8 °C3 July 1971	-3.7 °C11 January 1971	14.3 °C	2,563 mm	29	59
1970	34.0 °C21 July 1970	-4.8 °C7 February 1970	13.9 °C	3,054 mm	20	70
1969	35.4 °C13 August 1969	-4.9 °C10 January 1969	14.1 °C	2,232 mm	23	52
1968	32.0 °C23 July 1968	-7.2 °C18 February 1968	13.8 °C	2,647 mm	15	63
1967	34.1 °C16 August 1967	-7.1 °C16 January 1967	14.2 °C	2,318 mm	34	69
1966	31.8 °C8 August 1966	-5.0 °C20 January 1966	13.5 °C	2,994 mm	18	48
1965	31.9 °C22 August 1965	-5.1 °C3 February 1965	12.9 °C	2,474 mm	12	65
1964	33.1 °C16 July 1964	-5.5 °C29 February 1964	14.9 °C	2,424 mm	39	48
1963	32.3 °C23 August 1963	-6.4 °C24 January 1963	13.8 °C	3,030 mm	20	71
1962	33.3 °C9 August 1962	-4.7 °C3 February 1962	14.0 °C	2,584 mm	19	60
1961	33.2 °C11 July 1961	-5.0 °C20 January 1961	14.9 °C	3,080 mm	30	53
1960	33.3 °C14 July 1960	-6.4 °C27 January 1960	14.5 °C	2,218 mm	21	47
1959	32.5 °C24 July 1959	-6.1 °C18 January 1959	15.0 °C	3,032 mm	32	33
1958	33.2 °C31 July 1958	-4.6 °C25 January 1958	14.5 °C	2,244 mm	18	42
1957	32.1 °C31 July 1957	-4.5 °C12 February 1957	13.9 °C	3,069 mm	13	51
1956	33.8 °C4 August 1956	-4.8 °C9 January 1956	13.9 °C	2,828 mm	27	69
1955	31.8 °C20 August 1955	-5.6 °C11 January 1955	14.4 °C	2,310 mm	18	45
1954	32.2 °C9 August 1954	-4.5 °C8 February 1954	14.3 °C	2,956 mm	11	42
1953	33.7 °C24 August 1953	-8.7 °C23 February 1953	14.2 °C	2,410 mm	29	49
1952	31.9 °C1 August 1952	-5.5 °C6 February 1952	13.5 °C	2,326 mm	8	46
1951	32.0 °C26 July 1951	-7.5 °C16 February 1951	13.3 °C	2,365 mm	8	54
1950	30.0 °C21 August 1950	-5.6 °C21 February 1950	13.3 °C	2,756 mm	2	54
1949	30.1 °C20 August 1949	-4.4 °C10 January 1949	13.1 °C	2,419 mm	1	53
1948	30.4 °C27 July 1948	-3.3 °C18 January 1948	13.8 °C	2,028 mm	2	45
1947	31.5 °C12 August 1947	-6.8 °C16 February 1947	12.3 °C	1,614 mm	12	79
1946	33.3 °C14 July 1946	-3.2 °C18 January 1946	13.6 °C	1,861 mm	12	66
1945	30.8 °C5 September 1945	-7.1 °C19 January 1945	12.6 °C	2,954 mm	3	82
1944	30.7 °C18 July 1944	-4.1 °C8 January 1944	13.3 °C	1,731 mm	3	70
1943	31.0 °C15 August 1943	-5.8 °C12 January 1943	12.8 °C	1,740 mm	1	72
1942	32.9 °C31 July 1942	-7.0 °C13 February 1942	13.1 °C	1,340 mm	21	64
1941	30.2 °C8 July 1941	-7.3 °C1 February 1941	13.2 °C	2,381 mm	1	58
1940	30.7 °C28 July 1940	-6.9 °C10 February 1940	12.5 °C	1,571 mm	3	72

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

20.1 °C

+1.4 °C

Hot days (≥ 30 °C)

62 d/yr

+40

Frost days (< 0 °C)

49 d/yr

Annual rainfall

2169 mm

-378 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.5 °C	+0.6 °C	26 mm	-37 mm
Feb	7.3 °C	-1.7 °C	53 mm	-42 mm
Mar	14.7 °C	+1.9 °C	141 mm	-7 mm
Apr	18.9 °C	+1.0 °C	144 mm	-68 mm
May	21.9 °C	+0.3 °C	346 mm	+103 mm
Jun	26.8 °C	+2.4 °C	314 mm	-51 mm
Jul	29.8 °C	+1.6 °C	254 mm	-116 mm
Aug	30.8 °C	+1.9 °C	195 mm	-139 mm
Sep	28.7 °C	+2.6 °C	305 mm	-35 mm
Oct	23.8 °C	+2.5 °C	311 mm	+113 mm
Nov	17.0 °C	+1.0 °C	44 mm	-70 mm
Dec	12.2 °C	+1.7 °C	37 mm	-30 mm

The year's extremes

Hottest day

34.0 °C

6 Aug 2025

Coldest day

-6.8 °C

7 Feb 2025

Wettest day

109.8 mm

24 May 2025

Windiest day

26.0 km/h

13 Apr 2025

Strongest gust

74.9 km/h

13 Apr 2025

Hottest feels-like

40.6 °C

6 Aug 2025

Coldest feels-like

-11.2 °C

7 Feb 2025

Snowiest day

3.0 cm

1 Feb 2025

Sunniest day

14.0 h

1 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 Susaki?

Susaki has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 2,547 mm of precipitation per year.

What is the hottest day ever recorded in Susaki?

The hottest day measured in Susaki between 1940 and 2025 was 16 August 2020, reaching 35.8 °C.

What is the coldest day in Susaki?

The coldest day measured in Susaki between 1940 and 2025 was 23 February 1953, at -8.7 °C.

Does it snow in Susaki?

Yes. Susaki gets on average 10.8 cm of snow per year and has around 43 frost days.

Has the climate of Susaki warmed?

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

What is the wettest day in Susaki?

The wettest day measured in Susaki between 1940 and 2025 was 17 August 1975, with 287 mm of rain in 24 hours.

What was the windiest day in Susaki?

The windiest day measured in Susaki between 1940 and 2025 was 30 August 2004, with winds reaching 61.3 km/h.

What is the warmest month in Susaki?

The warmest month in Susaki is August (25.3 °C on average); the coldest is January (3.6 °C).

How much does it rain in Susaki?

Susaki receives on average 2,547 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in Susaki?

Susaki gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

What is the biggest single-day snowfall in Susaki?

The heaviest 24-hour snowfall measured in Susaki between 1940 and 2025 was 15 February 1968, with 24.2 cm.

Are there tropical nights in Susaki?

Yes: Susaki has on average 76 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Susaki?

In Susaki, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 16 August 2024, and the lowest was -14.5 °C on 26 February 1981.

Compare Susaki with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Susaki

Other cities — Japan

All cities in Japan →