Amami climate — normals and trends

Q: What is the climate of Amami?

Amami has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.6 °C and it receives 1,844 mm of precipitation per year.

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

The hottest day measured in Amami between 1940 and 2025 was 19 July 2024, reaching 31.3 °C.

Q: What is the coldest day in Amami?

The coldest day measured in Amami between 1940 and 2025 was 6 March 2005, at 6.8 °C.

Q: Does it snow in Amami?

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

Q: Has the climate of Amami warmed?

Yes: Amami warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Amami?

The wettest day measured in Amami between 1940 and 2025 was 10 September 1976, with 246 mm of rain in 24 hours.

Q: What was the windiest day in Amami?

The windiest day measured in Amami between 1940 and 2025 was 18 August 1951, with winds reaching 104.4 km/h.

Q: What is the warmest month in Amami?

The warmest month in Amami is August (27.7 °C on average); the coldest is January (15.3 °C).

Q: How much does it rain in Amami?

Amami receives on average 1,844 mm of precipitation per year, spread over about 175 rainy days.

Q: Is it sunny in Amami?

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

Amami (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.6 °C and it receives 1,844 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 (27.7 °C on average) and the coldest is January (15.3 °C). Rainfall peaks in June.

Amami averages 0 frost days, 1 hot days (≥ 30 °C) and 175 rainy days per year.

Amami has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.

The hottest day of the period reached 31.3 °C (on 19 July 2024) and the coldest 6.8 °C (on 6 March 2005).

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

AmamiKagoshima

coords: 28.38°, 129.49°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJuneDriest monthDecember

Mean daily temperature

21.6°C

Average daily high

22.5°C

Average daily low

20.7°C

Annual rainfall

1,844mm

Sunshine / day

8.3h

Mean relative humidity

76%

Average peak wind

29.5km/h

Seasonal range

12.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

1 d/yr

Rainy days (≥ 1 mm)

175 d/yr

Annual snowfall

0.0 cm

Average feels-like high

23.2 °C

Average feels-like low

19.7 °C

Average peak gust

42.5 km/h

Tropical nights (≥ 20 °C)

207 d/yr

Solar radiation

15.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.45 · 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

31.3 °C

19 July 2024

Coldest day

6.8 °C

6 March 2005

Wettest day

246 mm

10 September 1976

Windiest day

104.4 km/h

18 August 1951

Strongest gust

171.7 km/h

30 September 2018

Hottest feels-like

39.5 °C

12 July 1994

Coldest feels-like

-2.7 °C

24 January 2016

Sunniest day

13.2 h

12 June 1959

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	30.3 °C6 September 2025	10.0 °C5 February 2025	22.5 °C	1,693 mm	4
2024	31.3 °C19 July 2024	11.8 °C23 January 2024	23.1 °C	2,427 mm	45
2023	30.0 °C11 July 2023	9.4 °C24 January 2023	22.4 °C	1,967 mm	2
2022	30.4 °C16 August 2022	11.3 °C18 February 2022	22.3 °C	2,257 mm	12
2021	29.3 °C11 July 2021	9.6 °C9 January 2021	22.2 °C	1,877 mm	0
2020	30.3 °C15 August 2020	11.1 °C18 February 2020	22.3 °C	2,029 mm	6
2019	29.9 °C29 July 2019	12.4 °C27 January 2019	22.5 °C	2,531 mm	0
2018	29.3 °C8 August 2018	9.4 °C6 February 2018	22.1 °C	1,905 mm	0
2017	30.6 °C30 July 2017	10.6 °C10 February 2017	22.2 °C	1,982 mm	14
2016	30.4 °C23 August 2016	7.3 °C24 January 2016	22.6 °C	1,836 mm	6
2015	29.4 °C23 July 2015	10.1 °C9 February 2015	22.0 °C	1,819 mm	0
2014	29.8 °C24 August 2014	10.4 °C22 January 2014	21.6 °C	2,261 mm	0
2013	30.2 °C2 August 2013	10.8 °C8 February 2013	21.9 °C	1,548 mm	3
2012	29.6 °C13 August 2012	10.4 °C3 February 2012	21.4 °C	2,788 mm	0
2011	29.0 °C23 July 2011	9.5 °C31 January 2011	21.4 °C	1,711 mm	0
2010	29.9 °C15 August 2010	9.7 °C31 December 2010	21.8 °C	2,076 mm	0
2009	31.2 °C10 August 2009	11.0 °C10 January 2009	21.9 °C	1,716 mm	4
2008	29.8 °C19 August 2008	10.7 °C13 February 2008	21.9 °C	1,469 mm	0
2007	29.8 °C25 July 2007	10.6 °C2 February 2007	22.1 °C	1,864 mm	0
2006	29.9 °C6 July 2006	10.6 °C7 January 2006	22.1 °C	1,901 mm	0
2005	29.9 °C1 August 2005	6.8 °C6 March 2005	21.5 °C	1,963 mm	0
2004	29.7 °C19 July 2004	9.1 °C22 January 2004	22.0 °C	1,629 mm	0
2003	30.2 °C6 August 2003	10.7 °C5 January 2003	21.9 °C	1,626 mm	2
2002	29.4 °C25 August 2002	12.1 °C23 January 2002	21.7 °C	1,786 mm	0
2001	30.5 °C9 August 2001	11.1 °C16 January 2001	22.0 °C	2,212 mm	3
2000	29.4 °C21 July 2000	10.8 °C27 January 2000	21.7 °C	2,038 mm	0
1999	29.6 °C11 September 1999	10.1 °C4 February 1999	21.9 °C	2,186 mm	0
1998	30.5 °C18 August 1998	9.7 °C24 January 1998	22.9 °C	2,823 mm	15
1997	29.0 °C5 August 1997	11.2 °C22 January 1997	21.7 °C	1,703 mm	0
1996	29.6 °C22 July 1996	9.3 °C10 February 1996	21.5 °C	1,675 mm	0
1995	30.0 °C9 August 1995	10.3 °C5 February 1995	21.3 °C	1,499 mm	1
1994	30.3 °C12 July 1994	10.9 °C21 January 1994	21.8 °C	1,688 mm	1
1993	29.5 °C12 July 1993	10.2 °C28 January 1993	21.6 °C	1,640 mm	0
1992	29.4 °C21 July 1992	10.8 °C1 February 1992	21.6 °C	1,860 mm	0
1991	30.4 °C23 July 1991	9.9 °C23 February 1991	22.0 °C	1,554 mm	5
1990	29.8 °C17 July 1990	9.4 °C24 January 1990	21.8 °C	1,815 mm	0
1989	29.4 °C14 July 1989	10.5 °C8 March 1989	21.7 °C	1,671 mm	0
1988	30.3 °C19 July 1988	11.6 °C17 December 1988	21.7 °C	1,953 mm	2
1987	29.9 °C28 August 1987	8.4 °C4 February 1987	21.8 °C	2,012 mm	0
1986	29.5 °C21 August 1986	8.6 °C3 March 1986	21.0 °C	1,146 mm	0
1985	28.6 °C31 July 1985	9.7 °C30 January 1985	21.3 °C	1,548 mm	0
1984	29.4 °C4 July 1984	9.1 °C6 February 1984	21.2 °C	1,889 mm	0
1983	29.8 °C30 July 1983	10.6 °C18 February 1983	21.7 °C	2,180 mm	0
1982	29.1 °C24 July 1982	9.2 °C19 January 1982	21.3 °C	2,060 mm	0
1981	29.4 °C3 July 1981	9.0 °C27 February 1981	21.3 °C	1,488 mm	0
1980	29.9 °C18 July 1980	9.7 °C31 January 1980	21.5 °C	1,900 mm	0
1979	29.3 °C9 July 1979	9.7 °C1 March 1979	21.5 °C	2,033 mm	0
1978	28.8 °C1 July 1978	8.5 °C17 February 1978	21.3 °C	2,479 mm	0
1977	29.5 °C15 July 1977	7.6 °C17 February 1977	21.7 °C	1,806 mm	0
1976	29.6 °C13 August 1976	10.6 °C28 December 1976	21.1 °C	2,486 mm	0
1975	29.0 °C23 July 1975	9.5 °C21 February 1975	21.5 °C	2,596 mm	0
1974	29.3 °C21 August 1974	9.2 °C26 February 1974	21.4 °C	1,865 mm	0
1973	29.7 °C30 July 1973	10.3 °C24 December 1973	21.4 °C	2,048 mm	0
1972	29.0 °C6 July 1972	9.7 °C1 March 1972	21.6 °C	2,047 mm	0
1971	30.0 °C11 July 1971	9.6 °C4 February 1971	21.5 °C	2,232 mm	2
1970	29.3 °C3 August 1970	10.0 °C16 January 1970	21.3 °C	2,071 mm	0
1969	29.8 °C11 August 1969	9.3 °C5 February 1969	21.5 °C	2,261 mm	0
1968	29.3 °C23 August 1968	8.9 °C21 February 1968	20.9 °C	2,027 mm	0
1967	29.6 °C14 August 1967	8.9 °C16 January 1967	21.4 °C	1,524 mm	0
1966	29.7 °C7 August 1966	11.2 °C27 December 1966	21.7 °C	2,138 mm	0
1965	29.5 °C23 July 1965	10.3 °C17 March 1965	21.1 °C	1,934 mm	0
1964	29.7 °C15 July 1964	10.6 °C2 February 1964	22.0 °C	2,223 mm	0
1963	29.6 °C2 September 1963	8.2 °C26 January 1963	21.2 °C	1,228 mm	0
1962	29.5 °C28 July 1962	9.6 °C27 January 1962	21.2 °C	1,602 mm	0
1961	29.5 °C4 September 1961	9.0 °C2 February 1961	21.7 °C	1,753 mm	0
1960	29.3 °C16 July 1960	9.4 °C30 December 1960	21.6 °C	1,416 mm	0
1959	29.4 °C3 September 1959	8.4 °C17 January 1959	21.8 °C	2,151 mm	0
1958	29.4 °C15 August 1958	9.6 °C12 February 1958	21.5 °C	1,353 mm	0
1957	29.4 °C29 July 1957	9.5 °C12 February 1957	21.1 °C	2,065 mm	0
1956	30.0 °C16 July 1956	9.7 °C29 February 1956	21.4 °C	1,441 mm	1
1955	29.1 °C22 July 1955	8.4 °C21 February 1955	21.6 °C	1,809 mm	0
1954	29.2 °C11 July 1954	10.2 °C5 February 1954	21.8 °C	1,933 mm	0
1953	29.4 °C15 August 1953	11.7 °C22 February 1953	21.7 °C	1,531 mm	0
1952	29.5 °C9 August 1952	11.0 °C4 February 1952	22.1 °C	1,772 mm	0
1951	29.0 °C21 July 1951	10.6 °C22 January 1951	21.4 °C	2,054 mm	0
1950	28.2 °C23 August 1950	10.5 °C12 March 1950	21.3 °C	1,803 mm	0
1949	28.6 °C22 August 1949	10.3 °C9 January 1949	21.4 °C	1,936 mm	0
1948	28.8 °C3 September 1948	10.0 °C27 January 1948	21.4 °C	1,058 mm	0
1947	29.6 °C9 August 1947	10.2 °C16 February 1947	20.7 °C	1,339 mm	0
1946	29.3 °C12 July 1946	10.8 °C11 January 1946	21.7 °C	1,330 mm	0
1945	28.8 °C26 August 1945	10.4 °C18 January 1945	21.1 °C	1,492 mm	0
1944	28.5 °C23 July 1944	11.2 °C19 February 1944	21.0 °C	1,516 mm	0
1943	28.5 °C14 August 1943	9.8 °C12 January 1943	20.9 °C	1,062 mm	0
1942	29.3 °C15 August 1942	9.9 °C16 January 1942	21.5 °C	1,637 mm	0
1941	28.7 °C30 July 1941	8.3 °C1 February 1941	21.3 °C	1,411 mm	0
1940	28.4 °C24 July 1940	9.4 °C25 January 1940	20.6 °C	942 mm	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

23.4 °C

+0.9 °C

Hot days (≥ 30 °C)

4 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1693 mm

-151 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	16.4 °C	0.0 °C	95 mm	-19 mm
Feb	15.5 °C	-1.1 °C	65 mm	-47 mm
Mar	18.9 °C	+0.6 °C	151 mm	+9 mm
Apr	20.9 °C	+0.1 °C	134 mm	-24 mm
May	23.7 °C	+0.4 °C	187 mm	-34 mm
Jun	28.0 °C	+2.1 °C	77 mm	-212 mm
Jul	28.8 °C	+0.5 °C	279 mm	+158 mm
Aug	29.3 °C	+0.9 °C	90 mm	-69 mm
Sep	29.4 °C	+2.0 °C	62 mm	-93 mm
Oct	27.5 °C	+2.7 °C	152 mm	+12 mm
Nov	22.8 °C	+1.1 °C	277 mm	+147 mm
Dec	19.7 °C	+1.4 °C	125 mm	+22 mm

The year's extremes

Hottest day

30.3 °C

6 Sep 2025

Coldest day

10.0 °C

5 Feb 2025

Wettest day

94.4 mm

13 Nov 2025

Windiest day

56.7 km/h

28 Jul 2025

Strongest gust

82.8 km/h

4 Feb 2025

Hottest feels-like

37.8 °C

28 Jun 2025

Coldest feels-like

1.2 °C

5 Feb 2025

Sunniest day

13.1 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 Amami?

Amami has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.6 °C and it receives 1,844 mm of precipitation per year.

What is the hottest day ever recorded in Amami?

The hottest day measured in Amami between 1940 and 2025 was 19 July 2024, reaching 31.3 °C.

What is the coldest day in Amami?

The coldest day measured in Amami between 1940 and 2025 was 6 March 2005, at 6.8 °C.

Does it snow in Amami?

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

Has the climate of Amami warmed?

Yes: Amami warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Amami?

The wettest day measured in Amami between 1940 and 2025 was 10 September 1976, with 246 mm of rain in 24 hours.

What was the windiest day in Amami?

The windiest day measured in Amami between 1940 and 2025 was 18 August 1951, with winds reaching 104.4 km/h.

What is the warmest month in Amami?

The warmest month in Amami is August (27.7 °C on average); the coldest is January (15.3 °C).

How much does it rain in Amami?

Amami receives on average 1,844 mm of precipitation per year, spread over about 175 rainy days.

Is it sunny in Amami?

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

Are there tropical nights in Amami?

Yes: Amami has on average 207 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Amami?

In Amami, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 12 July 1994, and the lowest was -2.7 °C on 24 January 2016.

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