Kōka climate — normals and trends

Q: What is the climate of Kōka?

Kōka has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 1,656 mm of precipitation per year.

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

The hottest day measured in Kōka between 1940 and 2025 was 7 August 1994, reaching 38.3 °C.

Q: What is the coldest day in Kōka?

The coldest day measured in Kōka between 1940 and 2025 was 10 February 1940, at -12.2 °C.

Q: Does it snow in Kōka?

Yes. Kōka gets on average 17.3 cm of snow per year and has around 60 frost days.

Q: Has the climate of Kōka warmed?

Yes: Kōka warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Kōka?

The wettest day measured in Kōka between 1940 and 2025 was 28 October 1961, with 202 mm of rain in 24 hours.

Q: What was the windiest day in Kōka?

The windiest day measured in Kōka between 1940 and 2025 was 26 September 1959, with winds reaching 72.5 km/h.

Q: What is the warmest month in Kōka?

The warmest month in Kōka is August (26.1 °C on average); the coldest is January (2.8 °C).

Q: How much does it rain in Kōka?

Kōka receives on average 1,656 mm of precipitation per year, spread over about 143 rainy days.

Q: Is it sunny in Kōka?

Kōka gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Kōka (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.1 °C and it receives 1,656 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 (26.1 °C on average) and the coldest is January (2.8 °C). Rainfall peaks in July.

Kōka averages 60 frost days, 36 hot days (≥ 30 °C) and 143 rainy days per year.

Kōka has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.

The number of frost days there went from about 88 to 32 per year over the period.

The hottest day of the period reached 38.3 °C (on 7 August 1994) and the coldest -12.2 °C (on 10 February 1940).

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

KōkaShiga

coords: 34.98°, 136.16°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

14.1°C

Average daily high

18.3°C

Average daily low

10.2°C

Annual rainfall

1,656mm

Sunshine / day

8.8h

Mean relative humidity

76%

Average peak wind

15.3km/h

Seasonal range

23.3°C

Frost days (< 0 °C)

60 d/yr

Hot days (≥ 30 °C)

36 d/yr

Rainy days (≥ 1 mm)

143 d/yr

Annual snowfall

17.3 cm

Average feels-like high

17.7 °C

Average feels-like low

9.3 °C

Average peak gust

40.8 km/h

Tropical nights (≥ 20 °C)

72 d/yr

Solar radiation

14.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.9 °C

since 1940

+0.3 °C per decade · r² = 0.70 · 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

38.3 °C

7 August 1994

Coldest day

-12.2 °C

10 February 1940

Wettest day

202 mm

28 October 1961

Windiest day

72.5 km/h

26 September 1959

Strongest gust

223.9 km/h

26 September 1959

Hottest feels-like

43.6 °C

7 August 1994

Coldest feels-like

-17.0 °C

10 February 1940

Snowiest day

30.5 cm

15 February 1968

Sunniest day

14.0 h

10 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.8 °C31 August 2025	-3.3 °C8 February 2025	15.9 °C	1,424 mm	83	41
2024	35.8 °C2 August 2024	-3.8 °C9 January 2024	16.4 °C	1,986 mm	73	27
2023	35.8 °C27 July 2023	-8.4 °C26 January 2023	16.1 °C	1,594 mm	74	32
2022	34.9 °C2 August 2022	-5.4 °C2 January 2022	15.5 °C	1,422 mm	61	46
2021	34.8 °C8 August 2021	-4.8 °C27 December 2021	15.7 °C	2,019 mm	38	33
2020	35.8 °C21 August 2020	-3.4 °C10 February 2020	15.7 °C	1,796 mm	44	20
2019	35.7 °C2 August 2019	-3.4 °C10 January 2019	15.8 °C	1,560 mm	50	25
2018	37.3 °C5 August 2018	-7.4 °C28 January 2018	15.7 °C	1,684 mm	54	47
2017	34.4 °C24 August 2017	-6.5 °C13 February 2017	14.8 °C	1,630 mm	52	45
2016	34.4 °C20 August 2016	-10.9 °C26 January 2016	15.7 °C	1,693 mm	51	41
2015	35.7 °C1 August 2015	-4.5 °C3 January 2015	15.4 °C	1,977 mm	37	27
2014	35.3 °C25 July 2014	-3.8 °C20 January 2014	14.7 °C	1,540 mm	29	47
2013	36.0 °C22 August 2013	-3.7 °C5 January 2013	15.0 °C	1,523 mm	55	46
2012	35.5 °C28 July 2012	-5.3 °C3 February 2012	14.4 °C	1,634 mm	48	53
2011	34.2 °C9 August 2011	-3.8 °C31 January 2011	14.8 °C	2,046 mm	46	58
2010	34.9 °C22 July 2010	-2.7 °C27 January 2010	15.2 °C	1,741 mm	61	29
2009	32.8 °C12 August 2009	-3.0 °C25 January 2009	14.9 °C	1,660 mm	31	35
2008	35.6 °C26 July 2008	-4.1 °C18 February 2008	14.9 °C	1,543 mm	47	39
2007	35.0 °C16 August 2007	-2.6 °C5 February 2007	15.1 °C	1,297 mm	38	29
2006	34.5 °C11 August 2006	-3.8 °C10 February 2006	14.7 °C	1,646 mm	42	46
2005	35.2 °C8 August 2005	-3.9 °C3 February 2005	14.7 °C	1,179 mm	58	57
2004	34.3 °C8 July 2004	-6.6 °C24 January 2004	15.5 °C	1,769 mm	51	47
2003	33.9 °C23 August 2003	-4.4 °C16 January 2003	14.4 °C	1,896 mm	32	54
2002	35.6 °C6 August 2002	-5.9 °C13 February 2002	14.8 °C	1,385 mm	52	35
2001	37.5 °C1 August 2001	-6.2 °C22 January 2001	14.6 °C	1,407 mm	52	55
2000	35.2 °C23 July 2000	-3.5 °C29 January 2000	14.6 °C	1,556 mm	54	62
1999	34.3 °C23 July 1999	-6.1 °C14 February 1999	14.7 °C	1,517 mm	28	55
1998	34.6 °C3 August 1998	-3.6 °C30 January 1998	15.5 °C	1,878 mm	41	38
1997	34.3 °C11 August 1997	-4.6 °C22 January 1997	14.4 °C	1,554 mm	39	54
1996	35.1 °C2 August 1996	-6.0 °C20 February 1996	13.8 °C	1,479 mm	37	74
1995	36.8 °C20 August 1995	-3.9 °C28 December 1995	14.0 °C	1,504 mm	44	60
1994	38.3 °C7 August 1994	-3.7 °C15 February 1994	15.4 °C	1,260 mm	68	45
1993	31.5 °C22 August 1993	-4.2 °C18 March 1993	13.9 °C	2,062 mm	10	34
1992	33.9 °C30 July 1992	-2.9 °C16 January 1992	14.4 °C	1,392 mm	31	33
1991	33.9 °C1 August 1991	-4.0 °C26 February 1991	14.7 °C	1,931 mm	34	39
1990	34.3 °C22 July 1990	-3.2 °C25 January 1990	15.2 °C	1,711 mm	58	30
1989	32.3 °C8 August 1989	-3.9 °C16 January 1989	14.5 °C	1,727 mm	22	31
1988	33.2 °C23 August 1988	-3.7 °C22 February 1988	13.7 °C	1,793 mm	16	57
1987	34.4 °C29 August 1987	-4.0 °C14 January 1987	14.5 °C	1,307 mm	40	55
1986	33.3 °C21 August 1986	-3.6 °C13 February 1986	13.7 °C	1,436 mm	34	66
1985	34.6 °C30 July 1985	-4.3 °C31 January 1985	14.1 °C	1,730 mm	40	62
1984	34.2 °C12 August 1984	-9.5 °C11 February 1984	13.4 °C	1,266 mm	37	88
1983	33.7 °C4 August 1983	-3.6 °C9 March 1983	14.1 °C	1,647 mm	35	64
1982	32.3 °C7 August 1982	-5.2 °C31 January 1982	13.9 °C	1,999 mm	15	60
1981	33.6 °C17 July 1981	-7.4 °C27 January 1981	13.2 °C	1,472 mm	31	77
1980	33.2 °C21 July 1980	-7.9 °C23 January 1980	13.3 °C	2,057 mm	6	81
1979	33.8 °C1 August 1979	-4.3 °C20 January 1979	14.5 °C	1,745 mm	39	58
1978	34.9 °C12 August 1978	-7.0 °C19 February 1978	14.1 °C	1,391 mm	57	66
1977	34.6 °C4 August 1977	-8.9 °C12 February 1977	14.2 °C	1,770 mm	30	70
1976	32.9 °C22 August 1976	-3.6 °C16 January 1976	13.5 °C	1,872 mm	19	58
1975	32.8 °C5 August 1975	-5.3 °C24 February 1975	14.0 °C	2,191 mm	31	74
1974	32.5 °C2 August 1974	-6.0 °C12 February 1974	13.5 °C	2,181 mm	25	67
1973	34.8 °C10 August 1973	-3.8 °C4 January 1973	13.9 °C	1,667 mm	40	67
1972	34.3 °C8 August 1972	-3.9 °C2 March 1972	14.1 °C	2,406 mm	32	48
1971	33.5 °C4 July 1971	-5.3 °C2 February 1971	13.5 °C	2,027 mm	31	70
1970	34.4 °C6 August 1970	-6.5 °C11 February 1970	13.3 °C	1,818 mm	27	83
1969	33.9 °C13 August 1969	-6.3 °C14 March 1969	13.5 °C	1,747 mm	40	71
1968	33.3 °C20 July 1968	-12.2 °C21 February 1968	13.4 °C	1,999 mm	21	68
1967	33.2 °C10 August 1967	-5.8 °C16 January 1967	13.7 °C	1,750 mm	43	80
1966	31.9 °C8 August 1966	-5.5 °C8 February 1966	12.8 °C	1,982 mm	19	82
1965	31.8 °C21 August 1965	-7.0 °C31 January 1965	12.2 °C	1,730 mm	15	97
1964	34.2 °C10 August 1964	-3.8 °C19 February 1964	14.5 °C	1,508 mm	47	52
1963	33.7 °C18 July 1963	-5.2 °C24 January 1963	13.7 °C	1,571 mm	37	75
1962	34.4 °C22 July 1962	-4.0 °C17 January 1962	13.9 °C	1,694 mm	36	59
1961	34.2 °C13 August 1961	-4.9 °C2 February 1961	14.8 °C	1,793 mm	48	68
1960	34.9 °C21 July 1960	-4.2 °C26 January 1960	14.3 °C	1,602 mm	37	52
1959	35.8 °C2 August 1959	-4.3 °C12 January 1959	14.8 °C	2,021 mm	41	41
1958	34.1 °C31 July 1958	-4.3 °C4 January 1958	14.2 °C	1,807 mm	32	52
1957	34.5 °C1 August 1957	-4.8 °C9 January 1957	13.6 °C	1,990 mm	21	65
1956	34.8 °C2 August 1956	-4.9 °C11 January 1956	13.7 °C	1,851 mm	37	74
1955	34.2 °C19 August 1955	-6.1 °C13 January 1955	14.4 °C	1,557 mm	50	52
1954	34.3 °C22 August 1954	-4.9 °C23 February 1954	14.0 °C	1,745 mm	29	53
1953	35.0 °C27 July 1953	-7.1 °C23 February 1953	13.9 °C	2,088 mm	25	58
1952	32.7 °C2 August 1952	-5.4 °C9 February 1952	12.5 °C	1,677 mm	15	90
1951	33.5 °C11 August 1951	-9.4 °C16 February 1951	12.7 °C	1,485 mm	30	78
1950	31.2 °C8 July 1950	-4.7 °C1 March 1950	12.9 °C	1,440 mm	8	92
1949	31.8 °C6 August 1949	-4.5 °C18 January 1949	12.5 °C	1,559 mm	7	91
1948	30.4 °C27 July 1948	-4.6 °C7 February 1948	13.2 °C	1,405 mm	3	72
1947	32.9 °C13 August 1947	-11.4 °C16 February 1947	11.8 °C	1,242 mm	31	101
1946	33.6 °C17 July 1946	-7.3 °C11 March 1946	13.0 °C	1,299 mm	17	95
1945	31.7 °C9 August 1945	-7.3 °C27 February 1945	12.2 °C	1,850 mm	8	98
1944	31.1 °C5 August 1944	-5.4 °C3 February 1944	12.8 °C	1,098 mm	14	101
1943	31.6 °C9 August 1943	-5.1 °C6 January 1943	12.4 °C	924 mm	8	103
1942	33.9 °C4 August 1942	-10.9 °C14 February 1942	12.7 °C	947 mm	33	92
1941	31.2 °C19 August 1941	-6.1 °C3 February 1941	12.7 °C	1,647 mm	6	85
1940	31.8 °C24 July 1940	-12.2 °C10 February 1940	12.1 °C	1,022 mm	7	100

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

20.3 °C

+2.0 °C

Hot days (≥ 30 °C)

83 d/yr

+47

Frost days (< 0 °C)

41 d/yr

-19

Annual rainfall

1424 mm

-232 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.1 °C	+1.4 °C	27 mm	-26 mm
Feb	6.8 °C	-0.7 °C	36 mm	-31 mm
Mar	13.0 °C	+1.6 °C	94 mm	-15 mm
Apr	19.4 °C	+2.1 °C	115 mm	-20 mm
May	22.4 °C	+0.7 °C	208 mm	+48 mm
Jun	27.4 °C	+2.4 °C	217 mm	-9 mm
Jul	32.3 °C	+3.4 °C	91 mm	-148 mm
Aug	33.7 °C	+3.5 °C	130 mm	-39 mm
Sep	30.1 °C	+3.8 °C	216 mm	+7 mm
Oct	22.1 °C	+1.6 °C	202 mm	+48 mm
Nov	15.8 °C	+0.8 °C	26 mm	-57 mm
Dec	11.2 °C	+1.7 °C	62 mm	+9 mm

The year's extremes

Hottest day

36.8 °C

31 Aug 2025

Coldest day

-3.3 °C

8 Feb 2025

Wettest day

62.0 mm

11 Aug 2025

Windiest day

32.3 km/h

5 Feb 2025

Strongest gust

79.6 km/h

15 Apr 2025

Hottest feels-like

42.5 °C

3 Aug 2025

Coldest feels-like

-9.0 °C

8 Feb 2025

Snowiest day

1.7 cm

8 Feb 2025

Sunniest day

14.0 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 Kōka?

Kōka has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.1 °C and it receives 1,656 mm of precipitation per year.

What is the hottest day ever recorded in Kōka?

The hottest day measured in Kōka between 1940 and 2025 was 7 August 1994, reaching 38.3 °C.

What is the coldest day in Kōka?

The coldest day measured in Kōka between 1940 and 2025 was 10 February 1940, at -12.2 °C.

Does it snow in Kōka?

Yes. Kōka gets on average 17.3 cm of snow per year and has around 60 frost days.

Has the climate of Kōka warmed?

Yes: Kōka warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Kōka?

The wettest day measured in Kōka between 1940 and 2025 was 28 October 1961, with 202 mm of rain in 24 hours.

What was the windiest day in Kōka?

The windiest day measured in Kōka between 1940 and 2025 was 26 September 1959, with winds reaching 72.5 km/h.

What is the warmest month in Kōka?

The warmest month in Kōka is August (26.1 °C on average); the coldest is January (2.8 °C).

How much does it rain in Kōka?

Kōka receives on average 1,656 mm of precipitation per year, spread over about 143 rainy days.

Is it sunny in Kōka?

Kōka gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

What is the biggest single-day snowfall in Kōka?

The heaviest 24-hour snowfall measured in Kōka between 1940 and 2025 was 15 February 1968, with 30.5 cm.

Are there tropical nights in Kōka?

Yes: Kōka has on average 72 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Kōka?

In Kōka, between 1940 and 2025, the highest apparent temperature reached 43.6 °C on 7 August 1994, and the lowest was -17.0 °C on 10 February 1940.

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