Hirara climate — normals and trends

Q: What is the climate of Hirara?

Hirara has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.9 °C and it receives 1,746 mm of precipitation per year.

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

The hottest day measured in Hirara between 1940 and 2025 was 10 August 2024, reaching 30.8 °C.

Q: What is the coldest day in Hirara?

The coldest day measured in Hirara between 1940 and 2025 was 24 January 2016, at 10.7 °C.

Q: Does it snow in Hirara?

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

Q: Has the climate of Hirara warmed?

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

Q: What is the wettest day in Hirara?

The wettest day measured in Hirara between 1940 and 2025 was 13 September 2017, with 232 mm of rain in 24 hours.

Q: What was the windiest day in Hirara?

The windiest day measured in Hirara between 1940 and 2025 was 26 September 1969, with winds reaching 122.2 km/h.

Q: What is the warmest month in Hirara?

The warmest month in Hirara is July (28.2 °C on average); the coldest is January (18.9 °C).

Q: How much does it rain in Hirara?

Hirara receives on average 1,746 mm of precipitation per year, spread over about 177 rainy days.

Q: Is it sunny in Hirara?

Hirara gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

Hirara (Japan) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 23.9 °C and it receives 1,746 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 July (28.2 °C on average) and the coldest is January (18.9 °C). Rainfall peaks in August.

Hirara averages 0 frost days, 2 hot days (≥ 30 °C) and 177 rainy days per year.

Hirara has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.

The hottest day of the period reached 30.8 °C (on 10 August 2024) and the coldest 10.7 °C (on 24 January 2016).

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

HiraraOkinawa

coords: 24.80°, 125.30°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthMarch

Mean daily temperature

23.9°C

Average daily high

24.6°C

Average daily low

23.1°C

Annual rainfall

1,746mm

Sunshine / day

9.0h

Mean relative humidity

78%

Average peak wind

32.6km/h

Seasonal range

9.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

2 d/yr

Rainy days (≥ 1 mm)

177 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.1 °C

Average feels-like low

22.7 °C

Average peak gust

44.7 km/h

Tropical nights (≥ 20 °C)

283 d/yr

Solar radiation

16.3 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

30.8 °C

10 August 2024

Coldest day

10.7 °C

24 January 2016

Wettest day

232 mm

13 September 2017

Windiest day

122.2 km/h

26 September 1969

Strongest gust

187.2 km/h

26 September 1969

Hottest feels-like

39.8 °C

11 August 2017

Coldest feels-like

1.7 °C

24 January 2016

Sunniest day

13.2 h

3 July 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	30.2 °C9 September 2025	13.7 °C8 February 2025	24.5 °C	1,753 mm	3
2024	30.8 °C10 August 2024	14.7 °C24 January 2024	25.1 °C	2,016 mm	33
2023	30.2 °C15 August 2023	12.6 °C24 January 2023	24.6 °C	1,613 mm	1
2022	30.6 °C25 July 2022	14.7 °C18 December 2022	24.7 °C	2,751 mm	28
2021	30.0 °C19 June 2021	12.4 °C9 January 2021	24.5 °C	1,763 mm	1
2020	30.0 °C12 July 2020	13.5 °C31 December 2020	24.6 °C	2,149 mm	2
2019	29.7 °C10 August 2019	16.1 °C26 January 2019	24.7 °C	2,182 mm	0
2018	29.5 °C29 July 2018	13.5 °C6 February 2018	24.2 °C	2,029 mm	0
2017	30.4 °C27 July 2017	13.7 °C11 February 2017	24.5 °C	1,771 mm	19
2016	30.6 °C21 August 2016	10.7 °C24 January 2016	24.9 °C	2,010 mm	24
2015	29.9 °C27 June 2015	14.1 °C6 February 2015	24.4 °C	1,536 mm	0
2014	30.4 °C4 July 2014	13.7 °C22 January 2014	24.0 °C	1,421 mm	7
2013	30.0 °C9 August 2013	13.9 °C18 January 2013	24.1 °C	1,629 mm	1
2012	29.8 °C18 July 2012	14.5 °C8 February 2012	24.0 °C	2,033 mm	0
2011	29.5 °C23 July 2011	12.9 °C16 January 2011	23.7 °C	1,688 mm	0
2010	29.5 °C3 August 2010	12.9 °C13 January 2010	24.2 °C	2,086 mm	0
2009	30.1 °C29 July 2009	13.1 °C10 January 2009	24.1 °C	1,512 mm	2
2008	29.7 °C23 July 2008	14.6 °C13 February 2008	24.1 °C	1,478 mm	0
2007	30.3 °C25 July 2007	14.5 °C28 January 2007	24.3 °C	1,904 mm	8
2006	29.6 °C6 July 2006	13.7 °C7 January 2006	24.2 °C	2,296 mm	0
2005	29.4 °C16 July 2005	11.7 °C6 March 2005	23.8 °C	1,855 mm	0
2004	29.4 °C6 August 2004	12.0 °C24 January 2004	24.0 °C	1,821 mm	0
2003	30.4 °C30 July 2003	13.3 °C5 January 2003	24.0 °C	1,169 mm	5
2002	30.1 °C4 July 2002	15.0 °C22 January 2002	24.1 °C	1,499 mm	1
2001	30.0 °C27 August 2001	14.1 °C9 March 2001	24.2 °C	1,917 mm	1
2000	29.2 °C29 June 2000	13.8 °C9 February 2000	24.0 °C	2,176 mm	0
1999	29.8 °C18 July 1999	13.4 °C22 December 1999	24.2 °C	1,922 mm	0
1998	30.5 °C16 August 1998	14.2 °C25 January 1998	25.0 °C	2,266 mm	5
1997	29.2 °C16 August 1997	14.9 °C12 February 1997	23.9 °C	1,640 mm	0
1996	29.8 °C17 July 1996	12.9 °C10 February 1996	23.8 °C	1,505 mm	0
1995	29.6 °C7 September 1995	13.2 °C5 February 1995	23.7 °C	1,463 mm	0
1994	30.1 °C27 July 1994	14.0 °C21 January 1994	24.0 °C	1,731 mm	1
1993	29.8 °C18 July 1993	12.6 °C28 January 1993	23.9 °C	1,110 mm	0
1992	29.7 °C8 August 1992	13.6 °C1 February 1992	23.7 °C	1,837 mm	0
1991	29.7 °C6 July 1991	13.6 °C28 December 1991	24.0 °C	1,387 mm	0
1990	30.0 °C17 August 1990	14.3 °C24 January 1990	23.9 °C	1,498 mm	1
1989	30.0 °C13 August 1989	13.6 °C8 March 1989	23.7 °C	1,428 mm	1
1988	30.2 °C4 July 1988	15.1 °C18 February 1988	24.2 °C	1,873 mm	5
1987	30.0 °C28 August 1987	11.8 °C4 February 1987	24.1 °C	1,527 mm	1
1986	29.4 °C21 August 1986	12.3 °C5 January 1986	23.3 °C	1,507 mm	0
1985	29.0 °C7 August 1985	13.8 °C16 December 1985	23.6 °C	2,200 mm	0
1984	29.7 °C27 July 1984	12.2 °C7 February 1984	23.5 °C	1,410 mm	0
1983	29.6 °C30 July 1983	13.3 °C18 March 1983	24.1 °C	1,825 mm	0
1982	29.2 °C24 July 1982	12.2 °C19 January 1982	23.7 °C	1,695 mm	0
1981	30.0 °C11 August 1981	12.9 °C26 February 1981	23.5 °C	1,915 mm	1
1980	29.7 °C25 June 1980	13.8 °C31 January 1980	24.0 °C	1,809 mm	0
1979	29.9 °C13 July 1979	13.2 °C2 February 1979	23.8 °C	1,958 mm	0
1978	29.7 °C7 July 1978	11.2 °C18 February 1978	23.6 °C	2,616 mm	0
1977	29.7 °C14 July 1977	11.6 °C17 February 1977	24.0 °C	1,891 mm	0
1976	29.3 °C9 August 1976	13.5 °C11 January 1976	23.5 °C	1,733 mm	0
1975	29.7 °C30 July 1975	12.9 °C21 February 1975	23.7 °C	1,917 mm	0
1974	29.6 °C20 August 1974	12.6 °C27 February 1974	23.8 °C	2,082 mm	0
1973	29.5 °C29 July 1973	13.6 °C24 December 1973	23.9 °C	2,067 mm	0
1972	29.5 °C5 July 1972	11.9 °C2 March 1972	23.6 °C	2,446 mm	0
1971	30.0 °C14 July 1971	11.9 °C5 February 1971	23.6 °C	1,542 mm	2
1970	29.4 °C27 July 1970	12.2 °C31 January 1970	23.8 °C	2,131 mm	0
1969	29.6 °C4 September 1969	12.8 °C5 February 1969	23.8 °C	1,882 mm	0
1968	29.4 °C19 August 1968	12.1 °C15 January 1968	23.1 °C	1,688 mm	0
1967	29.4 °C9 July 1967	11.1 °C16 January 1967	23.5 °C	1,411 mm	0
1966	30.0 °C7 August 1966	15.5 °C23 February 1966	24.2 °C	2,677 mm	1
1965	29.0 °C13 July 1965	13.4 °C12 January 1965	23.6 °C	1,615 mm	0
1964	29.2 °C14 July 1964	13.2 °C2 February 1964	24.0 °C	1,422 mm	0
1963	29.9 °C4 September 1963	11.5 °C25 January 1963	23.0 °C	985 mm	0
1962	29.4 °C20 July 1962	12.3 °C2 January 1962	23.3 °C	1,139 mm	0
1961	29.1 °C14 June 1961	11.9 °C2 February 1961	23.8 °C	1,303 mm	0
1960	29.4 °C26 July 1960	12.7 °C30 December 1960	23.8 °C	1,958 mm	0
1959	29.5 °C14 July 1959	11.9 °C17 January 1959	23.8 °C	2,177 mm	0
1958	28.9 °C23 July 1958	11.7 °C13 February 1958	23.5 °C	1,565 mm	0
1957	29.4 °C20 August 1957	12.8 °C11 February 1957	23.4 °C	1,711 mm	0
1956	29.6 °C10 July 1956	12.1 °C9 January 1956	23.6 °C	2,021 mm	0
1955	29.6 °C21 July 1955	11.8 °C20 February 1955	23.8 °C	1,570 mm	0
1954	30.5 °C16 August 1954	14.7 °C6 February 1954	24.3 °C	1,607 mm	1
1953	29.7 °C16 August 1953	14.2 °C22 February 1953	24.1 °C	1,489 mm	0
1952	29.3 °C11 August 1952	13.5 °C19 February 1952	24.4 °C	1,310 mm	0
1951	29.1 °C19 August 1951	13.6 °C21 January 1951	23.8 °C	1,824 mm	0
1950	29.5 °C21 July 1950	13.9 °C10 December 1950	23.8 °C	1,754 mm	0
1949	29.7 °C7 July 1949	12.5 °C9 January 1949	23.8 °C	1,363 mm	0
1948	29.1 °C6 July 1948	12.8 °C16 January 1948	23.5 °C	1,384 mm	0
1947	29.3 °C31 July 1947	13.7 °C10 March 1947	23.3 °C	2,102 mm	0
1946	29.1 °C31 August 1946	14.0 °C8 February 1946	23.9 °C	870 mm	0
1945	29.4 °C27 July 1945	14.0 °C18 January 1945	23.5 °C	1,626 mm	0
1944	28.7 °C9 September 1944	13.6 °C7 January 1944	23.4 °C	1,536 mm	0
1943	29.2 °C31 July 1943	11.2 °C12 January 1943	23.2 °C	826 mm	0
1942	29.9 °C14 August 1942	13.0 °C17 January 1942	23.6 °C	1,848 mm	0
1941	28.9 °C13 July 1941	13.2 °C1 February 1941	23.6 °C	2,011 mm	0
1940	28.5 °C30 August 1940	11.9 °C25 January 1940	22.9 °C	1,507 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

25.3 °C

+0.7 °C

Hot days (≥ 30 °C)

3 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1753 mm

+7 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.0 °C	+0.1 °C	66 mm	-56 mm
Feb	19.7 °C	-0.5 °C	97 mm	-13 mm
Mar	21.5 °C	0.0 °C	117 mm	+11 mm
Apr	23.1 °C	-0.4 °C	179 mm	+48 mm
May	25.9 °C	+0.2 °C	205 mm	+26 mm
Jun	28.7 °C	+1.1 °C	80 mm	-100 mm
Jul	29.1 °C	+0.4 °C	249 mm	+109 mm
Aug	29.2 °C	+0.6 °C	35 mm	-172 mm
Sep	29.5 °C	+1.6 °C	73 mm	-92 mm
Oct	28.4 °C	+2.2 °C	418 mm	+277 mm
Nov	25.5 °C	+1.4 °C	61 mm	-77 mm
Dec	22.8 °C	+1.3 °C	174 mm	+47 mm

The year's extremes

Hottest day

30.2 °C

9 Sep 2025

Coldest day

13.7 °C

8 Feb 2025

Wettest day

182.3 mm

21 Oct 2025

Windiest day

63.3 km/h

13 Nov 2025

Strongest gust

87.5 km/h

13 Nov 2025

Hottest feels-like

38.1 °C

31 Jul 2025

Coldest feels-like

6.4 °C

8 Feb 2025

Sunniest day

13.0 h

27 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 Hirara?

Hirara has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.9 °C and it receives 1,746 mm of precipitation per year.

What is the hottest day ever recorded in Hirara?

The hottest day measured in Hirara between 1940 and 2025 was 10 August 2024, reaching 30.8 °C.

What is the coldest day in Hirara?

The coldest day measured in Hirara between 1940 and 2025 was 24 January 2016, at 10.7 °C.

Does it snow in Hirara?

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

Has the climate of Hirara warmed?

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

What is the wettest day in Hirara?

The wettest day measured in Hirara between 1940 and 2025 was 13 September 2017, with 232 mm of rain in 24 hours.

What was the windiest day in Hirara?

The windiest day measured in Hirara between 1940 and 2025 was 26 September 1969, with winds reaching 122.2 km/h.

What is the warmest month in Hirara?

The warmest month in Hirara is July (28.2 °C on average); the coldest is January (18.9 °C).

How much does it rain in Hirara?

Hirara receives on average 1,746 mm of precipitation per year, spread over about 177 rainy days.

Is it sunny in Hirara?

Hirara gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

Are there tropical nights in Hirara?

Yes: Hirara has on average 283 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Hirara?

In Hirara, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 11 August 2017, and the lowest was 1.7 °C on 24 January 2016.

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