Hamanoichi climate — normals and trends

Q: What is the climate of Hamanoichi?

Hamanoichi has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 2,057 mm of precipitation per year.

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

The hottest day measured in Hamanoichi between 1940 and 2025 was 17 August 2020, reaching 36.3 °C.

Q: What is the coldest day in Hamanoichi?

The coldest day measured in Hamanoichi between 1940 and 2025 was 25 January 1998, at -8.8 °C.

Q: Does it snow in Hamanoichi?

Yes. Hamanoichi gets on average 2.1 cm of snow per year and has around 26 frost days.

Q: Has the climate of Hamanoichi warmed?

Yes: Hamanoichi warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Hamanoichi?

The wettest day measured in Hamanoichi between 1940 and 2025 was 21 June 2012, with 223 mm of rain in 24 hours.

Q: What was the windiest day in Hamanoichi?

The windiest day measured in Hamanoichi between 1940 and 2025 was 7 September 2004, with winds reaching 54.4 km/h.

Q: What is the warmest month in Hamanoichi?

The warmest month in Hamanoichi is August (26.3 °C on average); the coldest is January (5.5 °C).

Q: How much does it rain in Hamanoichi?

Hamanoichi receives on average 2,057 mm of precipitation per year, spread over about 156 rainy days.

Q: Is it sunny in Hamanoichi?

Hamanoichi gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.

Hamanoichi (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 2,057 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 (26.3 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in June.

Hamanoichi averages 26 frost days, 38 hot days (≥ 30 °C) and 156 rainy days per year.

Hamanoichi has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.

The number of frost days there went from about 39 to 13 per year over the period.

The hottest day of the period reached 36.3 °C (on 17 August 2020) and the coldest -8.8 °C (on 25 January 1998).

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

HamanoichiKagoshima

coords: 31.72°, 130.73°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJuneDriest monthDecember

Mean daily temperature

16.1°C

Average daily high

20.4°C

Average daily low

12.3°C

Annual rainfall

2,057mm

Sunshine / day

8.3h

Mean relative humidity

79%

Average peak wind

12.6km/h

Seasonal range

20.8°C

Frost days (< 0 °C)

26 d/yr

Hot days (≥ 30 °C)

38 d/yr

Rainy days (≥ 1 mm)

156 d/yr

Annual snowfall

2.1 cm

Average feels-like high

21.0 °C

Average feels-like low

12.2 °C

Average peak gust

38.2 km/h

Tropical nights (≥ 20 °C)

95 d/yr

Solar radiation

14.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.4 °C

since 1940

+0.3 °C per decade · r² = 0.76 · 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

36.3 °C

17 August 2020

Coldest day

-8.8 °C

25 January 1998

Wettest day

223 mm

21 June 2012

Windiest day

54.4 km/h

7 September 2004

Strongest gust

176.8 km/h

7 September 2004

Hottest feels-like

43.8 °C

17 August 2020

Coldest feels-like

-13.7 °C

25 January 1998

Snowiest day

7.5 cm

23 January 1998

Sunniest day

13.7 h

6 June 1960

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.8 °C2 July 2025	-4.9 °C25 February 2025	17.1 °C	1,775 mm	77	32
2024	35.8 °C8 August 2024	-2.5 °C23 December 2024	18.2 °C	2,587 mm	74	14
2023	34.0 °C20 August 2023	-4.0 °C25 January 2023	17.4 °C	2,346 mm	62	21
2022	33.3 °C9 August 2022	-2.2 °C1 January 2022	17.3 °C	2,115 mm	63	17
2021	34.0 °C29 July 2021	-3.6 °C9 January 2021	17.3 °C	2,125 mm	49	18
2020	36.3 °C17 August 2020	-2.2 °C18 December 2020	17.2 °C	2,598 mm	41	10
2019	33.5 °C31 July 2019	-2.1 °C27 January 2019	17.4 °C	1,953 mm	43	11
2018	34.3 °C8 August 2018	-4.6 °C27 January 2018	17.0 °C	2,381 mm	50	26
2017	34.8 °C1 August 2017	-5.1 °C25 January 2017	16.6 °C	2,160 mm	56	32
2016	34.8 °C22 August 2016	-5.3 °C25 January 2016	17.6 °C	2,845 mm	60	16
2015	34.3 °C8 August 2015	-3.2 °C18 January 2015	16.9 °C	2,869 mm	28	17
2014	33.5 °C26 July 2014	-2.8 °C19 December 2014	16.5 °C	2,368 mm	29	19
2013	34.4 °C10 August 2013	-2.4 °C29 January 2013	17.1 °C	1,642 mm	62	9
2012	32.4 °C28 July 2012	-4.3 °C3 February 2012	16.3 °C	2,721 mm	32	14
2011	33.2 °C1 September 2011	-3.4 °C16 January 2011	16.5 °C	2,155 mm	46	24
2010	33.3 °C18 August 2010	-1.3 °C27 January 2010	17.0 °C	2,331 mm	47	11
2009	33.0 °C11 August 2009	-1.5 °C16 January 2009	17.0 °C	1,870 mm	47	9
2008	34.3 °C1 August 2008	-2.5 °C18 February 2008	16.8 °C	1,967 mm	45	14
2007	34.7 °C27 July 2007	-3.4 °C3 February 2007	17.3 °C	1,885 mm	55	7
2006	34.4 °C8 August 2006	-2.5 °C8 January 2006	17.1 °C	2,115 mm	48	18
2005	33.3 °C23 July 2005	-3.3 °C27 February 2005	16.4 °C	1,777 mm	54	27
2004	34.6 °C30 July 2004	-1.9 °C22 January 2004	17.3 °C	2,202 mm	53	10
2003	33.4 °C22 August 2003	-2.4 °C28 December 2003	17.1 °C	2,151 mm	45	12
2002	33.2 °C18 August 2002	-1.8 °C14 December 2002	17.1 °C	1,881 mm	43	10
2001	34.3 °C26 July 2001	-2.5 °C16 January 2001	16.9 °C	2,096 mm	50	15
2000	33.5 °C12 August 2000	-1.9 °C10 February 2000	16.9 °C	1,941 mm	38	13
1999	31.3 °C15 September 1999	-2.2 °C22 January 1999	16.7 °C	2,240 mm	26	11
1998	33.8 °C7 August 1998	-8.8 °C25 January 1998	17.8 °C	2,408 mm	65	9
1997	33.4 °C2 September 1997	-2.3 °C23 January 1997	16.7 °C	2,059 mm	36	7
1996	33.1 °C24 July 1996	-3.4 °C11 February 1996	16.2 °C	1,839 mm	45	21
1995	33.2 °C2 August 1995	-3.6 °C31 December 1995	16.0 °C	1,880 mm	58	22
1994	35.1 °C6 August 1994	-3.2 °C24 January 1994	17.1 °C	1,586 mm	70	23
1993	32.2 °C12 August 1993	-2.8 °C25 February 1993	16.0 °C	3,298 mm	16	20
1992	33.8 °C23 July 1992	-2.6 °C2 February 1992	16.4 °C	2,155 mm	39	16
1991	33.0 °C24 July 1991	-3.6 °C26 February 1991	16.6 °C	2,276 mm	43	20
1990	34.1 °C30 July 1990	-3.8 °C26 January 1990	16.9 °C	2,528 mm	57	21
1989	32.8 °C13 August 1989	-1.9 °C3 February 1989	16.5 °C	2,060 mm	35	15
1988	33.2 °C7 July 1988	-2.5 °C4 February 1988	16.1 °C	1,712 mm	31	20
1987	32.5 °C29 August 1987	-2.6 °C26 January 1987	16.5 °C	2,221 mm	31	25
1986	33.2 °C8 August 1986	-4.2 °C25 February 1986	15.8 °C	1,525 mm	38	38
1985	33.0 °C28 August 1985	-4.2 °C15 January 1985	16.2 °C	1,897 mm	31	35
1984	34.7 °C17 July 1984	-4.8 °C20 January 1984	15.7 °C	1,581 mm	44	46
1983	34.6 °C4 August 1983	-4.5 °C23 January 1983	16.2 °C	2,452 mm	39	35
1982	31.8 °C31 July 1982	-4.5 °C30 January 1982	16.1 °C	2,169 mm	26	28
1981	32.9 °C21 August 1981	-4.5 °C27 February 1981	15.7 °C	1,647 mm	43	34
1980	32.4 °C20 July 1980	-8.3 °C10 February 1980	15.7 °C	2,267 mm	17	42
1979	34.2 °C10 August 1979	-2.2 °C17 January 1979	16.0 °C	2,327 mm	38	11
1978	33.2 °C20 July 1978	-4.1 °C11 January 1978	16.1 °C	1,690 mm	43	21
1977	32.6 °C17 August 1977	-6.8 °C19 February 1977	16.2 °C	1,933 mm	41	44
1976	32.1 °C17 August 1976	-6.0 °C24 January 1976	15.5 °C	2,615 mm	24	33
1975	32.7 °C23 August 1975	-4.0 °C24 February 1975	15.9 °C	2,182 mm	30	31
1974	34.2 °C15 August 1974	-4.7 °C28 February 1974	15.5 °C	1,915 mm	28	42
1973	33.5 °C22 July 1973	-3.0 °C25 December 1973	15.7 °C	2,064 mm	38	21
1972	32.4 °C2 August 1972	-2.8 °C2 April 1972	16.0 °C	2,626 mm	30	16
1971	32.8 °C3 July 1971	-3.2 °C6 January 1971	15.9 °C	2,303 mm	36	36
1970	33.5 °C23 July 1970	-4.6 °C18 January 1970	15.5 °C	2,292 mm	26	35
1969	33.8 °C8 August 1969	-4.3 °C7 February 1969	15.8 °C	2,275 mm	45	28
1968	32.9 °C11 August 1968	-4.1 °C13 February 1968	15.4 °C	2,268 mm	25	38
1967	35.6 °C18 August 1967	-4.4 °C18 January 1967	15.8 °C	1,756 mm	54	43
1966	33.8 °C6 August 1966	-2.8 °C20 January 1966	15.4 °C	2,151 mm	32	27
1965	32.0 °C21 August 1965	-3.3 °C4 February 1965	14.6 °C	2,032 mm	20	24
1964	33.2 °C10 August 1964	-3.8 °C14 February 1964	16.4 °C	2,268 mm	55	26
1963	32.5 °C15 July 1963	-3.6 °C14 February 1963	15.5 °C	1,668 mm	33	47
1962	32.7 °C26 July 1962	-3.3 °C2 February 1962	15.3 °C	1,998 mm	32	37
1961	33.4 °C18 July 1961	-4.8 °C20 January 1961	16.3 °C	1,897 mm	54	44
1960	33.4 °C11 August 1960	-5.3 °C30 January 1960	16.0 °C	1,780 mm	41	46
1959	32.6 °C28 August 1959	-3.9 °C7 January 1959	16.2 °C	2,390 mm	44	24
1958	33.6 °C22 July 1958	-3.2 °C4 January 1958	16.0 °C	1,689 mm	50	34
1957	32.3 °C1 August 1957	-4.8 °C8 January 1957	15.3 °C	2,405 mm	29	41
1956	34.2 °C4 August 1956	-4.5 °C13 March 1956	15.4 °C	1,949 mm	41	55
1955	32.6 °C4 August 1955	-4.5 °C8 January 1955	15.8 °C	1,930 mm	34	37
1954	33.6 °C10 August 1954	-3.5 °C27 January 1954	16.0 °C	2,285 mm	25	31
1953	34.3 °C23 August 1953	-4.4 °C17 January 1953	15.7 °C	2,115 mm	40	34
1952	33.6 °C3 August 1952	-4.2 °C6 February 1952	15.6 °C	1,971 mm	16	23
1951	32.8 °C1 August 1951	-3.0 °C14 January 1951	15.3 °C	2,036 mm	30	22
1950	30.4 °C4 August 1950	-1.8 °C25 January 1950	15.3 °C	1,760 mm	3	28
1949	30.9 °C2 August 1949	-2.2 °C17 January 1949	15.0 °C	2,307 mm	5	20
1948	31.2 °C20 August 1948	-2.1 °C4 January 1948	15.5 °C	1,907 mm	5	20
1947	32.6 °C12 August 1947	-3.0 °C21 December 1947	14.4 °C	1,272 mm	25	50
1946	35.2 °C15 July 1946	-2.4 °C6 January 1946	15.5 °C	1,456 mm	23	30
1945	31.1 °C5 September 1945	-2.6 °C18 January 1945	14.7 °C	2,093 mm	8	43
1944	31.2 °C3 September 1944	-2.3 °C16 February 1944	15.1 °C	1,527 mm	13	33
1943	31.1 °C15 August 1943	-3.2 °C1 February 1943	14.7 °C	1,209 mm	4	43
1942	34.7 °C4 August 1942	-4.2 °C13 February 1942	15.1 °C	1,301 mm	39	37
1941	31.2 °C19 August 1941	-4.1 °C2 February 1941	15.1 °C	1,451 mm	7	31
1940	32.4 °C28 July 1940	-3.5 °C5 February 1940	14.5 °C	1,175 mm	7	48

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

21.7 °C

+1.3 °C

Hot days (≥ 30 °C)

77 d/yr

+39

Frost days (< 0 °C)

32 d/yr

Annual rainfall

1775 mm

-282 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	10.8 °C	+0.7 °C	39 mm	-30 mm
Feb	10.1 °C	-1.3 °C	69 mm	-28 mm
Mar	16.1 °C	+1.1 °C	148 mm	+3 mm
Apr	20.3 °C	+0.7 °C	150 mm	-35 mm
May	23.2 °C	+0.1 °C	331 mm	+102 mm
Jun	28.2 °C	+2.7 °C	296 mm	-132 mm
Jul	30.6 °C	+1.3 °C	118 mm	-142 mm
Aug	31.4 °C	+1.3 °C	236 mm	+48 mm
Sep	30.2 °C	+2.5 °C	139 mm	-51 mm
Oct	26.3 °C	+3.2 °C	144 mm	+34 mm
Nov	18.6 °C	+0.7 °C	44 mm	-46 mm
Dec	14.5 °C	+2.1 °C	61 mm	-6 mm

The year's extremes

Hottest day

34.8 °C

2 Jul 2025

Coldest day

-4.9 °C

25 Feb 2025

Wettest day

83.2 mm

21 May 2025

Windiest day

28.0 km/h

15 Apr 2025

Strongest gust

87.1 km/h

14 Apr 2025

Hottest feels-like

42.2 °C

2 Jul 2025

Coldest feels-like

-8.5 °C

9 Feb 2025

Snowiest day

0.3 cm

10 Jan 2025

Sunniest day

13.6 h

6 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 Hamanoichi?

Hamanoichi has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 2,057 mm of precipitation per year.

What is the hottest day ever recorded in Hamanoichi?

The hottest day measured in Hamanoichi between 1940 and 2025 was 17 August 2020, reaching 36.3 °C.

What is the coldest day in Hamanoichi?

The coldest day measured in Hamanoichi between 1940 and 2025 was 25 January 1998, at -8.8 °C.

Does it snow in Hamanoichi?

Yes. Hamanoichi gets on average 2.1 cm of snow per year and has around 26 frost days.

Has the climate of Hamanoichi warmed?

Yes: Hamanoichi warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Hamanoichi?

The wettest day measured in Hamanoichi between 1940 and 2025 was 21 June 2012, with 223 mm of rain in 24 hours.

What was the windiest day in Hamanoichi?

The windiest day measured in Hamanoichi between 1940 and 2025 was 7 September 2004, with winds reaching 54.4 km/h.

What is the warmest month in Hamanoichi?

The warmest month in Hamanoichi is August (26.3 °C on average); the coldest is January (5.5 °C).

How much does it rain in Hamanoichi?

Hamanoichi receives on average 2,057 mm of precipitation per year, spread over about 156 rainy days.

Is it sunny in Hamanoichi?

Hamanoichi gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.

What is the biggest single-day snowfall in Hamanoichi?

The heaviest 24-hour snowfall measured in Hamanoichi between 1940 and 2025 was 23 January 1998, with 7.5 cm.

Are there tropical nights in Hamanoichi?

Yes: Hamanoichi has on average 95 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Hamanoichi?

In Hamanoichi, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 17 August 2020, and the lowest was -13.7 °C on 25 January 1998.

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