Maniwa climate — normals and trends

Q: What is the climate of Maniwa?

Maniwa has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 1,497 mm of precipitation per year.

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

The hottest day measured in Maniwa between 1940 and 2025 was 4 August 1994, reaching 38.6 °C.

Q: What is the coldest day in Maniwa?

The coldest day measured in Maniwa between 1940 and 2025 was 10 February 1940, at -14.4 °C.

Q: Does it snow in Maniwa?

Yes. Maniwa gets on average 25.3 cm of snow per year and has around 78 frost days.

Q: Has the climate of Maniwa warmed?

Yes: Maniwa warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Maniwa?

The wettest day measured in Maniwa between 1940 and 2025 was 14 August 2021, with 192 mm of rain in 24 hours.

Q: What was the windiest day in Maniwa?

The windiest day measured in Maniwa between 1940 and 2025 was 21 August 1970, with winds reaching 52.6 km/h.

Q: What is the warmest month in Maniwa?

The warmest month in Maniwa is August (25.6 °C on average); the coldest is January (1.9 °C).

Q: How much does it rain in Maniwa?

Maniwa receives on average 1,497 mm of precipitation per year, spread over about 133 rainy days.

Q: Is it sunny in Maniwa?

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

Maniwa (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.4 °C and it receives 1,497 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 (25.6 °C on average) and the coldest is January (1.9 °C). Rainfall peaks in July.

Maniwa averages 78 frost days, 35 hot days (≥ 30 °C) and 133 rainy days per year.

Maniwa has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.

The number of frost days there went from about 102 to 54 per year over the period.

The hottest day of the period reached 38.6 °C (on 4 August 1994) and the coldest -14.4 °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

ManiwaOkayama

coords: 35.11°, 133.72°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

13.4°C

Average daily high

18.2°C

Average daily low

9.0°C

Annual rainfall

1,497mm

Sunshine / day

8.9h

Mean relative humidity

75%

Average peak wind

13.5km/h

Seasonal range

23.7°C

Frost days (< 0 °C)

78 d/yr

Hot days (≥ 30 °C)

35 d/yr

Rainy days (≥ 1 mm)

133 d/yr

Annual snowfall

25.3 cm

Average feels-like high

17.6 °C

Average feels-like low

8.0 °C

Average peak gust

36.5 km/h

Tropical nights (≥ 20 °C)

61 d/yr

Solar radiation

14.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.8 °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

38.6 °C

4 August 1994

Coldest day

-14.4 °C

10 February 1940

Wettest day

192 mm

14 August 2021

Windiest day

52.6 km/h

21 August 1970

Strongest gust

157.7 km/h

14 September 1954

Hottest feels-like

43.0 °C

1 August 2024

Coldest feels-like

-18.6 °C

10 February 1940

Snowiest day

30.0 cm

9 March 2010

Sunniest day

14.0 h

20 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.6 °C30 July 2025	-8.8 °C25 February 2025	14.2 °C	1,339 mm	76	90
2024	36.4 °C1 August 2024	-6.2 °C20 December 2024	15.4 °C	1,854 mm	74	48
2023	35.8 °C28 July 2023	-10.5 °C26 January 2023	15.2 °C	1,482 mm	55	51
2022	35.0 °C1 July 2022	-6.3 °C23 February 2022	14.8 °C	1,176 mm	64	70
2021	35.5 °C5 August 2021	-6.4 °C2 January 2021	14.7 °C	1,899 mm	31	49
2020	36.2 °C14 August 2020	-5.1 °C31 December 2020	14.8 °C	1,666 mm	42	45
2019	34.4 °C5 August 2019	-3.3 °C30 January 2019	14.8 °C	1,376 mm	37	52
2018	36.6 °C5 August 2018	-11.2 °C6 February 2018	14.6 °C	1,795 mm	52	57
2017	34.9 °C24 August 2017	-7.7 °C25 January 2017	14.0 °C	1,504 mm	47	67
2016	34.7 °C13 August 2016	-6.3 °C24 January 2016	14.9 °C	1,751 mm	47	54
2015	35.2 °C31 July 2015	-4.4 °C3 January 2015	14.5 °C	1,672 mm	30	44
2014	35.0 °C26 July 2014	-5.6 °C15 December 2014	13.9 °C	1,576 mm	26	71
2013	35.4 °C9 August 2013	-8.1 °C30 December 2013	14.5 °C	1,642 mm	53	60
2012	33.9 °C26 July 2012	-9.3 °C20 February 2012	13.9 °C	1,412 mm	50	68
2011	33.9 °C10 August 2011	-9.6 °C3 January 2011	14.1 °C	1,629 mm	48	77
2010	35.0 °C16 August 2010	-5.5 °C2 January 2010	14.6 °C	1,435 mm	59	53
2009	33.4 °C18 July 2009	-4.9 °C14 January 2009	14.4 °C	1,281 mm	26	48
2008	35.4 °C2 August 2008	-4.9 °C19 February 2008	14.3 °C	1,202 mm	52	59
2007	34.6 °C16 August 2007	-3.5 °C3 February 2007	14.6 °C	1,072 mm	43	50
2006	34.8 °C9 August 2006	-6.3 °C8 January 2006	14.1 °C	1,546 mm	48	59
2005	35.2 °C21 July 2005	-5.5 °C20 December 2005	14.1 °C	907 mm	53	77
2004	34.4 °C13 July 2004	-5.6 °C22 January 2004	14.9 °C	1,974 mm	43	62
2003	35.1 °C23 August 2003	-5.6 °C29 January 2003	14.1 °C	1,615 mm	31	62
2002	35.8 °C5 August 2002	-7.3 °C13 February 2002	14.5 °C	1,049 mm	57	58
2001	37.6 °C2 August 2001	-9.0 °C30 January 2001	14.1 °C	1,383 mm	50	77
2000	35.7 °C22 July 2000	-7.6 °C28 January 2000	14.2 °C	1,280 mm	58	73
1999	33.1 °C22 August 1999	-6.3 °C13 February 1999	14.1 °C	1,384 mm	30	70
1998	34.9 °C3 July 1998	-9.0 °C25 January 1998	15.0 °C	1,532 mm	48	55
1997	35.5 °C2 September 1997	-5.8 °C22 January 1997	13.9 °C	1,542 mm	42	74
1996	35.8 °C2 August 1996	-5.9 °C23 February 1996	13.4 °C	1,262 mm	42	95
1995	36.1 °C19 August 1995	-5.0 °C31 January 1995	13.5 °C	1,253 mm	47	89
1994	38.6 °C4 August 1994	-6.4 °C19 February 1994	14.9 °C	810 mm	68	63
1993	33.0 °C26 August 1993	-5.3 °C3 February 1993	13.4 °C	1,850 mm	9	71
1992	34.6 °C29 July 1992	-4.5 °C2 February 1992	13.9 °C	1,378 mm	33	54
1991	34.9 °C23 July 1991	-8.6 °C24 February 1991	14.2 °C	1,491 mm	33	56
1990	35.1 °C3 August 1990	-5.8 °C26 January 1990	14.8 °C	1,771 mm	63	50
1989	32.4 °C8 August 1989	-4.1 °C16 January 1989	14.1 °C	1,758 mm	23	51
1988	33.4 °C9 July 1988	-4.5 °C4 February 1988	13.2 °C	1,518 mm	20	79
1987	33.3 °C28 July 1987	-4.5 °C27 March 1987	13.9 °C	1,433 mm	35	72
1986	33.2 °C29 July 1986	-7.7 °C26 February 1986	13.0 °C	1,261 mm	29	88
1985	33.4 °C30 July 1985	-7.2 °C26 February 1985	13.6 °C	1,655 mm	33	78
1984	34.3 °C11 August 1984	-10.0 °C23 March 1984	13.0 °C	1,167 mm	46	100
1983	34.2 °C3 August 1983	-4.6 °C23 January 1983	13.7 °C	1,595 mm	38	72
1982	31.8 °C4 August 1982	-9.4 °C11 February 1982	13.3 °C	1,649 mm	12	72
1981	33.3 °C19 July 1981	-13.8 °C4 December 1981	12.4 °C	1,252 mm	31	101
1980	32.6 °C21 July 1980	-10.3 °C23 January 1980	12.4 °C	1,912 mm	3	95
1979	34.1 °C30 July 1979	-8.3 °C16 January 1979	13.7 °C	1,853 mm	27	83
1978	34.0 °C5 July 1978	-11.3 °C17 February 1978	13.4 °C	1,227 mm	51	92
1977	34.2 °C4 August 1977	-13.1 °C19 February 1977	13.4 °C	1,549 mm	27	86
1976	32.9 °C14 August 1976	-8.6 °C30 December 1976	12.6 °C	2,004 mm	21	99
1975	34.1 °C22 July 1975	-12.6 °C24 January 1975	13.5 °C	1,810 mm	27	90
1974	32.8 °C2 August 1974	-11.9 °C12 February 1974	12.9 °C	1,709 mm	26	85
1973	35.9 °C13 August 1973	-4.5 °C27 December 1973	13.3 °C	1,153 mm	47	92
1972	33.4 °C8 August 1972	-5.5 °C2 March 1972	13.2 °C	2,219 mm	30	72
1971	34.2 °C16 July 1971	-6.4 °C11 January 1971	13.1 °C	1,431 mm	31	82
1970	34.4 °C21 July 1970	-8.6 °C19 January 1970	12.8 °C	1,721 mm	33	106
1969	35.4 °C13 August 1969	-6.6 °C15 March 1969	12.9 °C	1,377 mm	39	98
1968	34.5 °C23 July 1968	-12.2 °C21 February 1968	12.8 °C	1,631 mm	22	84
1967	33.9 °C24 August 1967	-9.8 °C17 January 1967	13.2 °C	1,545 mm	48	98
1966	32.7 °C8 August 1966	-5.8 °C8 February 1966	12.2 °C	1,769 mm	24	99
1965	31.5 °C20 August 1965	-10.8 °C31 January 1965	11.7 °C	1,944 mm	16	112
1964	34.2 °C5 August 1964	-4.8 °C21 January 1964	13.9 °C	1,394 mm	52	75
1963	33.3 °C20 July 1963	-10.2 °C10 February 1963	12.8 °C	1,842 mm	34	96
1962	35.2 °C28 July 1962	-5.8 °C24 January 1962	13.2 °C	1,347 mm	41	93
1961	33.4 °C16 July 1961	-6.8 °C19 January 1961	13.9 °C	1,707 mm	41	82
1960	35.4 °C3 August 1960	-6.0 °C27 January 1960	13.6 °C	1,324 mm	33	77
1959	34.1 °C3 August 1959	-6.2 °C18 January 1959	14.1 °C	1,621 mm	47	56
1958	34.0 °C31 July 1958	-5.8 °C9 March 1958	13.5 °C	1,342 mm	34	76
1957	33.1 °C31 July 1957	-6.2 °C11 February 1957	12.8 °C	1,755 mm	19	82
1956	34.8 °C3 August 1956	-6.2 °C13 March 1956	12.7 °C	1,827 mm	36	89
1955	33.7 °C2 August 1955	-10.2 °C12 January 1955	13.5 °C	1,337 mm	43	72
1954	34.0 °C7 August 1954	-8.1 °C8 February 1954	13.2 °C	1,645 mm	26	63
1953	35.1 °C20 August 1953	-10.1 °C23 February 1953	13.2 °C	1,986 mm	28	82
1952	32.5 °C2 August 1952	-9.6 °C20 February 1952	12.0 °C	1,614 mm	9	97
1951	33.0 °C31 July 1951	-6.6 °C8 February 1951	12.2 °C	1,283 mm	27	93
1950	31.6 °C2 August 1950	-6.6 °C12 January 1950	12.4 °C	1,298 mm	7	101
1949	31.5 °C7 August 1949	-6.1 °C8 March 1949	12.0 °C	1,448 mm	7	97
1948	31.2 °C26 July 1948	-6.9 °C4 January 1948	12.6 °C	1,319 mm	3	86
1947	32.7 °C12 August 1947	-11.8 °C5 February 1947	11.2 °C	1,260 mm	18	112
1946	34.8 °C14 July 1946	-6.8 °C13 March 1946	12.6 °C	1,071 mm	25	107
1945	31.7 °C9 August 1945	-12.6 °C27 February 1945	11.4 °C	1,744 mm	7	108
1944	31.7 °C18 July 1944	-8.2 °C23 February 1944	12.3 °C	1,144 mm	11	114
1943	31.1 °C14 August 1943	-7.7 °C12 January 1943	11.8 °C	1,031 mm	4	114
1942	34.6 °C2 August 1942	-12.0 °C14 February 1942	12.1 °C	978 mm	31	111
1941	30.9 °C9 August 1941	-11.7 °C12 February 1941	12.0 °C	1,334 mm	4	102
1940	31.1 °C24 July 1940	-14.4 °C10 February 1940	11.5 °C	1,118 mm	6	107

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

19.6 °C

+1.4 °C

Hot days (≥ 30 °C)

76 d/yr

+41

Frost days (< 0 °C)

90 d/yr

+12

Annual rainfall

1339 mm

-158 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	6.6 °C	+0.4 °C	15 mm	-29 mm
Feb	5.3 °C	-1.8 °C	33 mm	-26 mm
Mar	12.8 °C	+1.4 °C	143 mm	+46 mm
Apr	18.7 °C	+1.2 °C	64 mm	-61 mm
May	22.2 °C	+0.2 °C	168 mm	+26 mm
Jun	27.9 °C	+2.7 °C	238 mm	+24 mm
Jul	32.6 °C	+3.6 °C	80 mm	-165 mm
Aug	32.5 °C	+2.4 °C	214 mm	+55 mm
Sep	28.5 °C	+2.5 °C	144 mm	-55 mm
Oct	22.0 °C	+1.7 °C	169 mm	+64 mm
Nov	15.3 °C	+0.7 °C	28 mm	-38 mm
Dec	9.6 °C	+0.7 °C	44 mm	+2 mm

The year's extremes

Hottest day

35.6 °C

30 Jul 2025

Coldest day

-8.8 °C

25 Feb 2025

Wettest day

121.2 mm

10 Aug 2025

Windiest day

30.9 km/h

5 Feb 2025

Strongest gust

82.1 km/h

16 Jun 2025

Hottest feels-like

41.9 °C

31 Jul 2025

Coldest feels-like

-13.0 °C

25 Feb 2025

Snowiest day

7.6 cm

1 Feb 2025

Sunniest day

14.0 h

20 May 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 Maniwa?

Maniwa has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.4 °C and it receives 1,497 mm of precipitation per year.

What is the hottest day ever recorded in Maniwa?

The hottest day measured in Maniwa between 1940 and 2025 was 4 August 1994, reaching 38.6 °C.

What is the coldest day in Maniwa?

The coldest day measured in Maniwa between 1940 and 2025 was 10 February 1940, at -14.4 °C.

Does it snow in Maniwa?

Yes. Maniwa gets on average 25.3 cm of snow per year and has around 78 frost days.

Has the climate of Maniwa warmed?

Yes: Maniwa warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Maniwa?

The wettest day measured in Maniwa between 1940 and 2025 was 14 August 2021, with 192 mm of rain in 24 hours.

What was the windiest day in Maniwa?

The windiest day measured in Maniwa between 1940 and 2025 was 21 August 1970, with winds reaching 52.6 km/h.

What is the warmest month in Maniwa?

The warmest month in Maniwa is August (25.6 °C on average); the coldest is January (1.9 °C).

How much does it rain in Maniwa?

Maniwa receives on average 1,497 mm of precipitation per year, spread over about 133 rainy days.

Is it sunny in Maniwa?

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

What is the biggest single-day snowfall in Maniwa?

The heaviest 24-hour snowfall measured in Maniwa between 1940 and 2025 was 9 March 2010, with 30.0 cm.

Are there tropical nights in Maniwa?

Yes: Maniwa has on average 61 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Maniwa?

In Maniwa, between 1940 and 2025, the highest apparent temperature reached 43.0 °C on 1 August 2024, and the lowest was -18.6 °C on 10 February 1940.

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