Owase climate — normals and trends

Q: What is the climate of Owase?

Owase has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 2,484 mm of precipitation per year.

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

The hottest day measured in Owase between 1940 and 2025 was 16 August 2024, reaching 32.0 °C.

Q: What is the coldest day in Owase?

The coldest day measured in Owase between 1940 and 2025 was 26 February 1981, at -3.7 °C.

Q: Does it snow in Owase?

Yes. Owase gets on average 8.0 cm of snow per year and has around 2 frost days.

Q: Has the climate of Owase warmed?

Yes: Owase warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Owase?

The wettest day measured in Owase between 1940 and 2025 was 3 August 1992, with 283 mm of rain in 24 hours.

Q: What was the windiest day in Owase?

The windiest day measured in Owase between 1940 and 2025 was 26 September 1959, with winds reaching 124.0 km/h.

Q: What is the warmest month in Owase?

The warmest month in Owase is August (25.6 °C on average); the coldest is January (6.8 °C).

Q: How much does it rain in Owase?

Owase receives on average 2,484 mm of precipitation per year, spread over about 158 rainy days.

Q: Is it sunny in Owase?

Owase gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

Owase (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.1 °C and it receives 2,484 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 (6.8 °C). Rainfall peaks in September.

Owase averages 2 frost days, 0 hot days (≥ 30 °C) and 158 rainy days per year.

Owase has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The number of frost days there went from about 4 to 0 per year over the period.

The hottest day of the period reached 32.0 °C (on 16 August 2024) and the coldest -3.7 °C (on 26 February 1981).

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

OwaseMie

coords: 34.07°, 136.20°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthSeptemberDriest monthJanuary

Mean daily temperature

16.1°C

Average daily high

17.8°C

Average daily low

14.4°C

Annual rainfall

2,484mm

Sunshine / day

8.6h

Mean relative humidity

73%

Average peak wind

22.3km/h

Seasonal range

18.8°C

Frost days (< 0 °C)

2 d/yr

Hot days (≥ 30 °C)

0 d/yr

Rainy days (≥ 1 mm)

158 d/yr

Annual snowfall

8.0 cm

Average feels-like high

17.5 °C

Average feels-like low

12.6 °C

Average peak gust

39.2 km/h

Tropical nights (≥ 20 °C)

105 d/yr

Solar radiation

14.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.53 · 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

32.0 °C

16 August 2024

Coldest day

-3.7 °C

26 February 1981

Wettest day

283 mm

3 August 1992

Windiest day

124.0 km/h

26 September 1959

Strongest gust

230.4 km/h

26 September 1959

Hottest feels-like

39.3 °C

16 August 2024

Coldest feels-like

-11.8 °C

26 February 1981

Snowiest day

14.7 cm

15 February 1968

Sunniest day

14.0 h

3 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	30.2 °C6 August 2025	-0.8 °C8 February 2025	17.2 °C	1,977 mm	1	1
2024	32.0 °C16 August 2024	1.7 °C24 January 2024	17.8 °C	2,538 mm	8	0
2023	29.2 °C13 August 2023	-1.3 °C25 January 2023	17.6 °C	2,196 mm	0	2
2022	29.9 °C3 August 2022	1.1 °C17 February 2022	17.2 °C	2,608 mm	0	0
2021	31.1 °C8 August 2021	0.2 °C8 January 2021	17.2 °C	2,550 mm	1	0
2020	31.0 °C18 August 2020	2.7 °C31 December 2020	17.5 °C	2,540 mm	6	0
2019	29.5 °C21 August 2019	3.0 °C27 January 2019	17.3 °C	2,871 mm	0	0
2018	30.4 °C23 July 2018	-0.8 °C25 January 2018	17.0 °C	2,783 mm	4	3
2017	30.7 °C25 August 2017	0.2 °C15 January 2017	16.5 °C	2,540 mm	2	0
2016	31.2 °C22 August 2016	-1.0 °C24 January 2016	17.3 °C	2,470 mm	3	2
2015	29.1 °C2 August 2015	0.9 °C9 February 2015	16.8 °C	2,976 mm	0	0
2014	28.8 °C26 July 2014	1.2 °C6 February 2014	16.1 °C	2,406 mm	0	0
2013	30.3 °C11 August 2013	1.4 °C18 January 2013	16.6 °C	2,169 mm	2	0
2012	28.6 °C19 July 2012	0.0 °C3 February 2012	16.1 °C	2,405 mm	0	0
2011	29.0 °C17 August 2011	-0.6 °C16 January 2011	16.2 °C	3,014 mm	0	2
2010	29.6 °C4 September 2010	1.1 °C14 January 2010	16.8 °C	2,639 mm	0	0
2009	28.9 °C13 August 2009	2.1 °C17 February 2009	16.6 °C	2,743 mm	0	0
2008	29.9 °C16 August 2008	1.1 °C24 February 2008	16.6 °C	2,523 mm	0	0
2007	29.8 °C17 August 2007	3.0 °C7 March 2007	16.8 °C	1,975 mm	0	0
2006	30.1 °C9 August 2006	-0.1 °C4 February 2006	16.5 °C	2,813 mm	1	1
2005	28.7 °C10 August 2005	-0.1 °C1 February 2005	16.1 °C	1,852 mm	0	1
2004	29.5 °C17 July 2004	-0.2 °C22 January 2004	17.2 °C	2,728 mm	0	2
2003	29.2 °C31 August 2003	-1.2 °C29 January 2003	16.4 °C	2,834 mm	0	2
2002	29.7 °C1 August 2002	0.4 °C2 January 2002	16.4 °C	2,430 mm	0	0
2001	29.5 °C4 August 2001	-0.7 °C15 January 2001	16.3 °C	2,276 mm	0	2
2000	29.6 °C22 July 2000	0.1 °C25 February 2000	16.4 °C	2,316 mm	0	0
1999	28.6 °C23 August 1999	-1.3 °C4 February 1999	16.6 °C	2,142 mm	0	3
1998	30.4 °C16 August 1998	-0.3 °C25 January 1998	17.4 °C	3,110 mm	2	2
1997	28.0 °C11 August 1997	-2.1 °C22 January 1997	16.1 °C	2,202 mm	0	1
1996	29.4 °C15 August 1996	-0.5 °C2 February 1996	15.6 °C	2,063 mm	0	2
1995	30.0 °C9 August 1995	0.5 °C31 January 1995	15.9 °C	1,778 mm	1	0
1994	30.2 °C5 August 1994	0.1 °C30 January 1994	16.8 °C	2,104 mm	2	0
1993	29.8 °C27 August 1993	2.1 °C2 February 1993	15.8 °C	3,156 mm	0	0
1992	28.7 °C3 September 1992	1.7 °C2 February 1992	16.2 °C	2,974 mm	0	0
1991	29.6 °C24 July 1991	-0.9 °C25 February 1991	16.3 °C	3,085 mm	0	4
1990	30.0 °C4 August 1990	-1.2 °C26 January 1990	16.6 °C	2,372 mm	1	2
1989	28.1 °C9 August 1989	1.3 °C28 January 1989	16.4 °C	2,661 mm	0	0
1988	28.5 °C15 September 1988	0.5 °C4 February 1988	15.7 °C	2,478 mm	0	0
1987	28.7 °C21 August 1987	0.4 °C28 February 1987	16.2 °C	1,792 mm	0	0
1986	30.1 °C3 September 1986	-0.2 °C16 February 1986	15.5 °C	1,835 mm	1	1
1985	28.7 °C11 September 1985	-1.4 °C15 January 1985	16.0 °C	2,371 mm	0	4
1984	28.7 °C3 September 1984	-2.2 °C7 February 1984	15.1 °C	1,868 mm	0	11
1983	29.4 °C31 July 1983	0.3 °C14 February 1983	15.9 °C	2,410 mm	0	0
1982	27.3 °C22 August 1982	-1.3 °C30 January 1982	15.6 °C	2,781 mm	0	3
1981	28.8 °C19 July 1981	-3.7 °C26 February 1981	15.5 °C	2,177 mm	0	4
1980	27.9 °C16 August 1980	-1.1 °C6 February 1980	15.5 °C	2,654 mm	0	3
1979	28.6 °C30 July 1979	1.7 °C16 January 1979	16.5 °C	2,926 mm	0	0
1978	28.7 °C6 August 1978	-1.3 °C2 February 1978	16.2 °C	2,035 mm	0	3
1977	29.4 °C4 August 1977	-3.2 °C17 February 1977	16.4 °C	2,765 mm	0	6
1976	28.9 °C14 August 1976	0.1 °C23 January 1976	15.6 °C	2,613 mm	0	0
1975	28.2 °C23 August 1975	-0.1 °C18 February 1975	16.1 °C	3,113 mm	0	1
1974	28.8 °C6 August 1974	-1.6 °C12 February 1974	15.8 °C	3,197 mm	0	2
1973	28.7 °C10 August 1973	0.7 °C25 February 1973	16.1 °C	2,464 mm	0	0
1972	29.0 °C7 August 1972	1.5 °C2 March 1972	16.1 °C	3,253 mm	0	0
1971	28.3 °C11 July 1971	0.6 °C11 February 1971	15.8 °C	2,932 mm	0	0
1970	28.4 °C7 August 1970	-0.2 °C17 January 1970	15.5 °C	3,064 mm	0	2
1969	29.3 °C13 August 1969	-0.6 °C6 February 1969	15.7 °C	2,430 mm	0	2
1968	28.5 °C10 August 1968	-1.1 °C21 February 1968	15.6 °C	2,928 mm	0	1
1967	30.3 °C14 August 1967	-1.7 °C16 January 1967	16.0 °C	2,718 mm	1	5
1966	28.1 °C30 July 1966	-0.9 °C20 January 1966	15.9 °C	2,945 mm	0	1
1965	29.1 °C23 August 1965	-0.3 °C3 February 1965	15.3 °C	2,256 mm	0	1
1964	29.0 °C8 August 1964	0.5 °C13 February 1964	16.3 °C	2,353 mm	0	0
1963	28.5 °C24 August 1963	-1.6 °C24 January 1963	15.6 °C	2,536 mm	0	9
1962	29.5 °C19 August 1962	0.8 °C28 January 1962	15.9 °C	2,443 mm	0	0
1961	28.7 °C14 July 1961	-0.2 °C2 February 1961	16.3 °C	2,672 mm	0	1
1960	29.7 °C20 August 1960	-1.1 °C25 January 1960	16.2 °C	2,418 mm	0	2
1959	29.2 °C2 September 1959	-1.2 °C18 January 1959	16.8 °C	3,136 mm	0	3
1958	28.8 °C31 July 1958	0.6 °C3 March 1958	16.3 °C	2,910 mm	0	0
1957	28.4 °C30 July 1957	0.4 °C11 February 1957	15.7 °C	2,643 mm	0	0
1956	29.5 °C2 August 1956	0.3 °C10 January 1956	15.8 °C	2,496 mm	0	0
1955	28.6 °C1 August 1955	-0.3 °C17 January 1955	16.2 °C	2,664 mm	0	4
1954	28.8 °C23 August 1954	0.2 °C22 February 1954	16.1 °C	2,921 mm	0	0
1953	30.0 °C17 August 1953	0.3 °C2 February 1953	15.7 °C	2,464 mm	2	0
1952	29.0 °C19 August 1952	-1.1 °C6 February 1952	15.8 °C	2,454 mm	0	2
1951	28.8 °C9 August 1951	-1.0 °C22 January 1951	15.8 °C	2,134 mm	0	1
1950	28.6 °C22 August 1950	-0.6 °C7 January 1950	15.9 °C	3,058 mm	0	1
1949	27.8 °C6 August 1949	1.0 °C17 January 1949	15.4 °C	2,260 mm	0	0
1948	27.9 °C6 September 1948	1.2 °C24 February 1948	16.2 °C	2,092 mm	0	0
1947	28.7 °C10 August 1947	-2.4 °C16 February 1947	14.7 °C	1,550 mm	0	13
1946	28.3 °C15 July 1946	1.0 °C11 January 1946	15.7 °C	1,819 mm	0	0
1945	27.6 °C10 August 1945	-1.4 °C4 February 1945	15.3 °C	3,119 mm	0	8
1944	27.8 °C31 August 1944	0.2 °C16 February 1944	15.5 °C	1,813 mm	0	0
1943	28.5 °C15 August 1943	-1.7 °C13 January 1943	15.2 °C	1,511 mm	0	5
1942	28.2 °C29 July 1942	-2.6 °C14 February 1942	15.6 °C	1,336 mm	0	8
1941	27.3 °C16 August 1941	-2.0 °C1 February 1941	15.6 °C	2,543 mm	0	5
1940	27.8 °C24 July 1940	-1.5 °C4 February 1940	15.0 °C	1,419 mm	0	19

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

19.0 °C

+1.2 °C

Hot days (≥ 30 °C)

1 d/yr

Frost days (< 0 °C)

1 d/yr

-1

Annual rainfall

1977 mm

-507 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	9.7 °C	+0.8 °C	45 mm	-38 mm
Feb	8.4 °C	-1.0 °C	38 mm	-64 mm
Mar	13.9 °C	+1.7 °C	182 mm	+17 mm
Apr	17.4 °C	+1.2 °C	140 mm	-74 mm
May	20.0 °C	+0.7 °C	406 mm	+164 mm
Jun	24.0 °C	+1.9 °C	152 mm	-176 mm
Jul	27.1 °C	+1.5 °C	132 mm	-115 mm
Aug	28.1 °C	+1.4 °C	51 mm	-185 mm
Sep	26.8 °C	+2.1 °C	184 mm	-146 mm
Oct	22.0 °C	+1.5 °C	440 mm	+145 mm
Nov	16.9 °C	+0.6 °C	68 mm	-90 mm
Dec	13.0 °C	+1.5 °C	139 mm	+56 mm

The year's extremes

Hottest day

30.2 °C

6 Aug 2025

Coldest day

-0.8 °C

8 Feb 2025

Wettest day

86.7 mm

31 Oct 2025

Windiest day

43.2 km/h

2 May 2025

Strongest gust

78.8 km/h

19 Mar 2025

Hottest feels-like

36.7 °C

2 Aug 2025

Coldest feels-like

-8.5 °C

8 Feb 2025

Snowiest day

1.5 cm

2 Feb 2025

Sunniest day

14.0 h

4 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 Owase?

Owase has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.1 °C and it receives 2,484 mm of precipitation per year.

What is the hottest day ever recorded in Owase?

The hottest day measured in Owase between 1940 and 2025 was 16 August 2024, reaching 32.0 °C.

What is the coldest day in Owase?

The coldest day measured in Owase between 1940 and 2025 was 26 February 1981, at -3.7 °C.

Does it snow in Owase?

Yes. Owase gets on average 8.0 cm of snow per year and has around 2 frost days.

Has the climate of Owase warmed?

Yes: Owase warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Owase?

The wettest day measured in Owase between 1940 and 2025 was 3 August 1992, with 283 mm of rain in 24 hours.

What was the windiest day in Owase?

The windiest day measured in Owase between 1940 and 2025 was 26 September 1959, with winds reaching 124.0 km/h.

What is the warmest month in Owase?

The warmest month in Owase is August (25.6 °C on average); the coldest is January (6.8 °C).

How much does it rain in Owase?

Owase receives on average 2,484 mm of precipitation per year, spread over about 158 rainy days.

Is it sunny in Owase?

Owase gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

What is the biggest single-day snowfall in Owase?

The heaviest 24-hour snowfall measured in Owase between 1940 and 2025 was 15 February 1968, with 14.7 cm.

Are there tropical nights in Owase?

Yes: Owase has on average 105 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Owase?

In Owase, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 16 August 2024, and the lowest was -11.8 °C on 26 February 1981.

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