Ishigaki climate — normals and trends

Q: What is the climate of Ishigaki?

Ishigaki has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.0 °C and it receives 1,854 mm of precipitation per year.

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

The hottest day measured in Ishigaki between 1940 and 2025 was 26 August 2022, reaching 30.8 °C.

Q: What is the coldest day in Ishigaki?

The coldest day measured in Ishigaki between 1940 and 2025 was 18 February 1978, at 11.2 °C.

Q: Does it snow in Ishigaki?

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

Q: Has the climate of Ishigaki warmed?

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

Q: What is the wettest day in Ishigaki?

The wettest day measured in Ishigaki between 1940 and 2025 was 12 September 2008, with 268 mm of rain in 24 hours.

Q: What was the windiest day in Ishigaki?

The windiest day measured in Ishigaki between 1940 and 2025 was 26 September 1969, with winds reaching 124.1 km/h.

Q: What is the warmest month in Ishigaki?

The warmest month in Ishigaki is July (28.1 °C on average); the coldest is January (19.2 °C).

Q: How much does it rain in Ishigaki?

Ishigaki receives on average 1,854 mm of precipitation per year, spread over about 191 rainy days.

Q: Is it sunny in Ishigaki?

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

Ishigaki (Japan) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.0 °C and it receives 1,854 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 (28.1 °C on average) and the coldest is January (19.2 °C). Rainfall peaks in August.

Ishigaki averages 0 frost days, 1 hot days (≥ 30 °C) and 191 rainy days per year.

Ishigaki 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 26 August 2022) and the coldest 11.2 °C (on 18 February 1978).

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

IshigakiOkinawa

coords: 24.34°, 124.16°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthMarch

Mean daily temperature

24.0°C

Average daily high

24.8°C

Average daily low

23.3°C

Annual rainfall

1,854mm

Sunshine / day

8.9h

Mean relative humidity

79%

Average peak wind

32.9km/h

Seasonal range

8.9°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

1 d/yr

Rainy days (≥ 1 mm)

191 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.4 °C

Average feels-like low

22.9 °C

Average peak gust

45.1 km/h

Tropical nights (≥ 20 °C)

291 d/yr

Solar radiation

16.2 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

26 August 2022

Coldest day

11.2 °C

18 February 1978

Wettest day

268 mm

12 September 2008

Windiest day

124.1 km/h

26 September 1969

Strongest gust

204.8 km/h

12 July 2013

Hottest feels-like

39.7 °C

20 July 2007

Coldest feels-like

2.3 °C

24 January 2016

Sunniest day

13.2 h

22 June 1957

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	30.0 °C30 June 2025	13.9 °C8 February 2025	24.7 °C	1,947 mm	3
2024	30.8 °C18 July 2024	14.6 °C24 January 2024	25.3 °C	2,112 mm	32
2023	30.2 °C15 August 2023	12.8 °C24 January 2023	24.6 °C	1,556 mm	2
2022	30.8 °C26 August 2022	14.8 °C18 December 2022	24.8 °C	2,973 mm	25
2021	30.1 °C20 June 2021	12.4 °C9 January 2021	24.7 °C	1,585 mm	2
2020	29.9 °C23 June 2020	13.4 °C31 December 2020	24.7 °C	1,928 mm	0
2019	29.8 °C10 August 2019	16.3 °C26 January 2019	24.9 °C	2,104 mm	0
2018	30.0 °C31 July 2018	13.7 °C5 February 2018	24.4 °C	1,996 mm	2
2017	30.4 °C28 July 2017	13.9 °C11 February 2017	24.7 °C	1,737 mm	9
2016	30.5 °C21 August 2016	11.2 °C24 January 2016	25.0 °C	2,021 mm	17
2015	30.1 °C27 June 2015	14.4 °C6 February 2015	24.6 °C	1,831 mm	2
2014	30.5 °C5 July 2014	13.9 °C22 January 2014	24.1 °C	1,199 mm	5
2013	29.8 °C6 August 2013	14.4 °C18 January 2013	24.2 °C	1,870 mm	0
2012	29.4 °C18 July 2012	14.5 °C31 December 2012	24.1 °C	2,324 mm	0
2011	29.4 °C19 August 2011	13.2 °C16 January 2011	23.9 °C	1,942 mm	0
2010	29.7 °C3 August 2010	13.0 °C14 January 2010	24.3 °C	2,134 mm	0
2009	29.8 °C31 July 2009	13.7 °C10 January 2009	24.2 °C	1,730 mm	0
2008	29.4 °C24 July 2008	14.9 °C13 February 2008	24.2 °C	2,097 mm	0
2007	30.3 °C24 July 2007	14.5 °C29 January 2007	24.5 °C	2,265 mm	7
2006	29.8 °C5 July 2006	13.8 °C7 January 2006	24.5 °C	2,214 mm	0
2005	29.4 °C16 July 2005	12.4 °C6 March 2005	24.0 °C	2,069 mm	0
2004	29.6 °C6 August 2004	12.3 °C25 January 2004	24.1 °C	2,042 mm	0
2003	30.3 °C30 July 2003	14.1 °C5 January 2003	24.1 °C	1,354 mm	3
2002	30.6 °C4 July 2002	15.4 °C3 January 2002	24.3 °C	1,731 mm	1
2001	29.9 °C26 August 2001	14.6 °C25 December 2001	24.4 °C	2,037 mm	0
2000	29.3 °C13 July 2000	14.2 °C9 February 2000	24.2 °C	2,238 mm	0
1999	29.6 °C18 July 1999	13.2 °C22 December 1999	24.3 °C	1,971 mm	0
1998	30.4 °C27 August 1998	14.5 °C25 January 1998	25.1 °C	2,226 mm	4
1997	29.3 °C18 August 1997	15.3 °C8 January 1997	24.1 °C	1,654 mm	0
1996	29.8 °C12 July 1996	13.3 °C10 February 1996	23.9 °C	1,638 mm	0
1995	29.4 °C22 July 1995	13.4 °C5 February 1995	23.8 °C	1,631 mm	0
1994	30.0 °C27 July 1994	14.4 °C21 January 1994	24.2 °C	1,814 mm	1
1993	29.8 °C31 August 1993	12.7 °C28 January 1993	24.1 °C	1,374 mm	0
1992	29.4 °C8 August 1992	13.9 °C1 February 1992	23.9 °C	1,880 mm	0
1991	29.9 °C6 July 1991	13.8 °C29 December 1991	24.2 °C	1,414 mm	0
1990	29.9 °C17 August 1990	14.8 °C24 January 1990	24.1 °C	1,870 mm	0
1989	30.1 °C13 August 1989	13.9 °C6 March 1989	23.9 °C	1,520 mm	1
1988	30.3 °C4 July 1988	15.4 °C18 February 1988	24.4 °C	1,967 mm	3
1987	29.7 °C15 July 1987	11.9 °C4 February 1987	24.3 °C	1,709 mm	0
1986	29.6 °C21 August 1986	12.1 °C5 January 1986	23.5 °C	1,833 mm	0
1985	29.3 °C30 July 1985	14.1 °C16 December 1985	23.8 °C	2,446 mm	0
1984	29.4 °C16 July 1984	12.5 °C7 February 1984	23.7 °C	1,624 mm	0
1983	29.4 °C17 July 1983	14.1 °C18 March 1983	24.2 °C	1,735 mm	0
1982	29.2 °C24 July 1982	12.8 °C19 January 1982	23.9 °C	1,550 mm	0
1981	30.0 °C11 August 1981	13.5 °C26 February 1981	23.7 °C	1,928 mm	1
1980	29.7 °C25 June 1980	14.2 °C31 January 1980	24.1 °C	1,871 mm	0
1979	29.8 °C11 July 1979	13.7 °C2 February 1979	24.0 °C	1,861 mm	0
1978	29.6 °C7 July 1978	11.2 °C18 February 1978	23.8 °C	2,681 mm	0
1977	29.5 °C9 July 1977	11.9 °C17 February 1977	24.1 °C	1,827 mm	0
1976	28.9 °C9 August 1976	13.8 °C11 January 1976	23.6 °C	1,863 mm	0
1975	29.7 °C29 July 1975	13.5 °C21 February 1975	23.8 °C	2,036 mm	0
1974	29.6 °C21 August 1974	12.8 °C27 February 1974	23.9 °C	2,336 mm	0
1973	29.3 °C29 July 1973	13.9 °C24 December 1973	24.1 °C	2,209 mm	0
1972	29.7 °C22 July 1972	12.2 °C2 March 1972	23.7 °C	2,467 mm	0
1971	29.6 °C10 July 1971	12.1 °C5 February 1971	23.6 °C	1,548 mm	0
1970	29.2 °C18 July 1970	12.8 °C31 January 1970	23.9 °C	2,262 mm	0
1969	29.5 °C23 July 1969	13.1 °C5 February 1969	23.9 °C	1,977 mm	0
1968	29.4 °C15 August 1968	12.5 °C15 January 1968	23.3 °C	1,692 mm	0
1967	29.5 °C11 August 1967	11.3 °C16 January 1967	23.7 °C	1,578 mm	0
1966	29.8 °C16 August 1966	15.9 °C27 December 1966	24.4 °C	2,485 mm	0
1965	28.9 °C4 August 1965	13.7 °C12 January 1965	23.8 °C	1,657 mm	0
1964	29.1 °C4 September 1964	13.4 °C2 February 1964	24.0 °C	1,484 mm	0
1963	29.7 °C4 September 1963	11.9 °C7 January 1963	23.1 °C	1,214 mm	0
1962	29.2 °C28 June 1962	12.5 °C2 January 1962	23.5 °C	1,332 mm	0
1961	29.2 °C14 June 1961	12.5 °C1 February 1961	23.9 °C	1,396 mm	0
1960	29.5 °C26 July 1960	12.9 °C30 December 1960	24.0 °C	2,180 mm	0
1959	29.3 °C17 July 1959	12.2 °C17 January 1959	24.0 °C	1,964 mm	0
1958	28.8 °C15 July 1958	11.9 °C13 February 1958	23.7 °C	1,775 mm	0
1957	29.4 °C20 August 1957	13.3 °C11 February 1957	23.6 °C	2,008 mm	0
1956	29.6 °C10 July 1956	12.1 °C9 January 1956	23.7 °C	2,063 mm	0
1955	29.5 °C21 July 1955	12.5 °C20 February 1955	23.9 °C	1,658 mm	0
1954	30.1 °C16 August 1954	15.1 °C6 February 1954	24.4 °C	1,652 mm	1
1953	29.9 °C16 August 1953	14.5 °C22 February 1953	24.2 °C	1,723 mm	0
1952	29.3 °C11 August 1952	13.6 °C20 February 1952	24.5 °C	1,190 mm	0
1951	28.9 °C18 August 1951	14.0 °C21 January 1951	23.9 °C	1,723 mm	0
1950	29.4 °C21 July 1950	13.7 °C10 December 1950	24.0 °C	2,260 mm	0
1949	29.6 °C7 July 1949	12.9 °C9 January 1949	24.1 °C	1,475 mm	0
1948	29.0 °C6 July 1948	12.8 °C16 January 1948	23.7 °C	1,599 mm	0
1947	29.2 °C31 July 1947	13.9 °C10 March 1947	23.5 °C	2,090 mm	0
1946	28.9 °C7 July 1946	14.0 °C8 February 1946	24.0 °C	1,121 mm	0
1945	29.5 °C3 August 1945	14.3 °C18 December 1945	23.7 °C	1,685 mm	0
1944	28.6 °C20 July 1944	14.1 °C7 January 1944	23.6 °C	1,615 mm	0
1943	29.2 °C25 August 1943	11.4 °C12 January 1943	23.4 °C	840 mm	0
1942	29.7 °C10 August 1942	13.5 °C17 January 1942	23.8 °C	2,231 mm	0
1941	29.2 °C26 August 1941	13.5 °C1 February 1941	23.8 °C	2,287 mm	0
1940	28.5 °C14 July 1940	12.1 °C25 January 1940	23.1 °C	1,730 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

25.5 °C

+0.7 °C

Hot days (≥ 30 °C)

3 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1947 mm

+93 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.0 °C	-0.2 °C	90 mm	-52 mm
Feb	20.2 °C	-0.3 °C	128 mm	+8 mm
Mar	21.9 °C	0.0 °C	160 mm	+47 mm
Apr	23.8 °C	0.0 °C	77 mm	-55 mm
May	26.2 °C	+0.2 °C	211 mm	+42 mm
Jun	28.8 °C	+1.0 °C	98 mm	-77 mm
Jul	29.2 °C	+0.5 °C	280 mm	+146 mm
Aug	29.2 °C	+0.6 °C	56 mm	-162 mm
Sep	29.3 °C	+1.5 °C	91 mm	-101 mm
Oct	28.3 °C	+2.1 °C	452 mm	+303 mm
Nov	25.5 °C	+1.3 °C	100 mm	-63 mm
Dec	23.0 °C	+1.3 °C	205 mm	+57 mm

The year's extremes

Hottest day

30.0 °C

30 Jun 2025

Coldest day

13.9 °C

8 Feb 2025

Wettest day

126.9 mm

21 Oct 2025

Windiest day

59.3 km/h

13 Apr 2025

Strongest gust

86.0 km/h

13 Apr 2025

Hottest feels-like

37.8 °C

3 Aug 2025

Coldest feels-like

6.8 °C

8 Feb 2025

Sunniest day

13.1 h

21 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 Ishigaki?

Ishigaki has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.0 °C and it receives 1,854 mm of precipitation per year.

What is the hottest day ever recorded in Ishigaki?

The hottest day measured in Ishigaki between 1940 and 2025 was 26 August 2022, reaching 30.8 °C.

What is the coldest day in Ishigaki?

The coldest day measured in Ishigaki between 1940 and 2025 was 18 February 1978, at 11.2 °C.

Does it snow in Ishigaki?

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

Has the climate of Ishigaki warmed?

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

What is the wettest day in Ishigaki?

The wettest day measured in Ishigaki between 1940 and 2025 was 12 September 2008, with 268 mm of rain in 24 hours.

What was the windiest day in Ishigaki?

The windiest day measured in Ishigaki between 1940 and 2025 was 26 September 1969, with winds reaching 124.1 km/h.

What is the warmest month in Ishigaki?

The warmest month in Ishigaki is July (28.1 °C on average); the coldest is January (19.2 °C).

How much does it rain in Ishigaki?

Ishigaki receives on average 1,854 mm of precipitation per year, spread over about 191 rainy days.

Is it sunny in Ishigaki?

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

Are there tropical nights in Ishigaki?

Yes: Ishigaki has on average 291 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Ishigaki?

In Ishigaki, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 20 July 2007, and the lowest was 2.3 °C on 24 January 2016.

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