Tsuyama climate — normals and trends

Q: What is the climate of Tsuyama?

Tsuyama has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.9 °C and it receives 1,493 mm of precipitation per year.

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

The hottest day measured in Tsuyama between 1940 and 2025 was 4 August 1994, reaching 40.2 °C.

Q: What is the coldest day in Tsuyama?

The coldest day measured in Tsuyama between 1940 and 2025 was 11 December 1981, at -15.9 °C.

Q: Does it snow in Tsuyama?

Yes. Tsuyama gets on average 16.8 cm of snow per year and has around 81 frost days.

Q: Has the climate of Tsuyama warmed?

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

Q: What is the wettest day in Tsuyama?

The wettest day measured in Tsuyama between 1940 and 2025 was 14 August 2021, with 177 mm of rain in 24 hours.

Q: What was the windiest day in Tsuyama?

The windiest day measured in Tsuyama between 1940 and 2025 was 14 September 1954, with winds reaching 55.2 km/h.

Q: What is the warmest month in Tsuyama?

The warmest month in Tsuyama is August (26.1 °C on average); the coldest is January (2.2 °C).

Q: How much does it rain in Tsuyama?

Tsuyama receives on average 1,493 mm of precipitation per year, spread over about 129 rainy days.

Q: Is it sunny in Tsuyama?

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

Tsuyama (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.9 °C and it receives 1,493 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 (2.2 °C). Rainfall peaks in July.

Tsuyama averages 81 frost days, 41 hot days (≥ 30 °C) and 129 rainy days per year.

Tsuyama 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 104 to 58 per year over the period.

The hottest day of the period reached 40.2 °C (on 4 August 1994) and the coldest -15.9 °C (on 11 December 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

TsuyamaOkayama

coords: 35.05°, 134.00°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthDecember

Mean daily temperature

13.9°C

Average daily high

18.9°C

Average daily low

9.2°C

Annual rainfall

1,493mm

Sunshine / day

9.0h

Mean relative humidity

75%

Average peak wind

13.4km/h

Seasonal range

23.9°C

Frost days (< 0 °C)

81 d/yr

Hot days (≥ 30 °C)

41 d/yr

Rainy days (≥ 1 mm)

129 d/yr

Annual snowfall

16.8 cm

Average feels-like high

18.5 °C

Average feels-like low

8.3 °C

Average peak gust

34.3 km/h

Tropical nights (≥ 20 °C)

65 d/yr

Solar radiation

14.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.8 °C

since 1940

+0.3 °C per decade · r² = 0.71 · 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

40.2 °C

4 August 1994

Coldest day

-15.9 °C

11 December 1981

Wettest day

177 mm

14 August 2021

Windiest day

55.2 km/h

14 September 1954

Strongest gust

159.5 km/h

4 September 1993

Hottest feels-like

44.5 °C

23 July 2018

Coldest feels-like

-20.1 °C

11 December 1981

Snowiest day

25.3 cm

15 February 1968

Sunniest day

14.0 h

19 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.4 °C6 August 2025	-7.7 °C9 February 2025	14.7 °C	1,331 mm	80	87
2024	37.0 °C1 August 2024	-7.4 °C25 January 2024	15.8 °C	1,920 mm	77	53
2023	36.0 °C28 July 2023	-9.8 °C26 January 2023	15.6 °C	1,528 mm	62	60
2022	36.2 °C1 July 2022	-8.3 °C2 January 2022	15.2 °C	1,141 mm	73	72
2021	36.2 °C5 August 2021	-9.1 °C8 January 2021	15.2 °C	1,830 mm	34	51
2020	37.1 °C16 August 2020	-7.4 °C31 December 2020	15.3 °C	1,649 mm	47	43
2019	35.1 °C5 August 2019	-3.8 °C30 January 2019	15.2 °C	1,385 mm	48	52
2018	37.0 °C5 August 2018	-12.2 °C6 February 2018	15.1 °C	1,793 mm	57	62
2017	35.7 °C24 August 2017	-8.9 °C25 January 2017	14.4 °C	1,511 mm	55	74
2016	35.6 °C8 August 2016	-6.0 °C24 January 2016	15.4 °C	1,785 mm	55	56
2015	35.6 °C31 July 2015	-5.4 °C4 January 2015	14.9 °C	1,698 mm	35	47
2014	35.4 °C24 July 2014	-5.5 °C15 December 2014	14.3 °C	1,511 mm	36	75
2013	36.3 °C9 August 2013	-9.7 °C30 December 2013	14.8 °C	1,674 mm	60	66
2012	34.5 °C26 July 2012	-10.4 °C19 February 2012	14.2 °C	1,479 mm	51	77
2011	34.5 °C10 August 2011	-10.5 °C31 January 2011	14.5 °C	1,591 mm	57	80
2010	35.7 °C17 August 2010	-7.0 °C2 January 2010	15.1 °C	1,426 mm	65	54
2009	34.1 °C22 August 2009	-9.1 °C16 January 2009	15.0 °C	1,257 mm	42	47
2008	36.4 °C3 August 2008	-6.2 °C18 February 2008	14.8 °C	1,208 mm	57	67
2007	35.6 °C18 August 2007	-3.5 °C5 February 2007	15.1 °C	1,084 mm	53	55
2006	35.8 °C8 August 2006	-8.8 °C8 January 2006	14.6 °C	1,533 mm	51	59
2005	35.7 °C28 June 2005	-8.8 °C20 December 2005	14.5 °C	867 mm	64	77
2004	35.9 °C30 July 2004	-5.1 °C22 January 2004	15.3 °C	1,894 mm	51	67
2003	36.3 °C23 August 2003	-5.2 °C9 January 2003	14.5 °C	1,578 mm	39	67
2002	36.6 °C5 August 2002	-8.1 °C13 February 2002	15.0 °C	1,028 mm	73	62
2001	39.1 °C2 August 2001	-9.8 °C10 March 2001	14.6 °C	1,304 mm	61	81
2000	36.7 °C22 July 2000	-6.2 °C29 January 2000	14.7 °C	1,240 mm	65	77
1999	33.5 °C22 August 1999	-4.5 °C23 December 1999	14.6 °C	1,412 mm	41	75
1998	36.0 °C4 August 1998	-4.7 °C25 January 1998	15.5 °C	1,559 mm	59	61
1997	35.8 °C2 September 1997	-5.2 °C22 January 1997	14.4 °C	1,516 mm	53	75
1996	36.9 °C4 August 1996	-4.9 °C2 February 1996	13.9 °C	1,326 mm	49	98
1995	36.9 °C19 August 1995	-5.3 °C28 December 1995	13.9 °C	1,301 mm	51	91
1994	40.2 °C4 August 1994	-5.3 °C14 February 1994	15.4 °C	807 mm	73	69
1993	33.3 °C26 August 1993	-3.7 °C15 February 1993	13.8 °C	1,877 mm	11	71
1992	35.3 °C29 July 1992	-4.1 °C10 February 1992	14.3 °C	1,343 mm	38	56
1991	35.8 °C24 July 1991	-7.2 °C31 December 1991	14.7 °C	1,531 mm	40	61
1990	36.3 °C10 August 1990	-5.3 °C3 February 1990	15.2 °C	1,810 mm	67	48
1989	33.3 °C4 August 1989	-4.0 °C15 February 1989	14.4 °C	1,697 mm	33	55
1988	34.5 °C10 July 1988	-4.3 °C13 January 1988	13.6 °C	1,494 mm	26	88
1987	34.1 °C28 July 1987	-4.5 °C22 January 1987	14.3 °C	1,406 mm	44	71
1986	33.6 °C20 August 1986	-4.9 °C13 February 1986	13.5 °C	1,300 mm	38	90
1985	34.1 °C30 July 1985	-6.6 °C31 January 1985	14.0 °C	1,650 mm	40	76
1984	35.0 °C11 August 1984	-11.1 °C23 March 1984	13.5 °C	1,195 mm	50	101
1983	35.5 °C3 August 1983	-4.6 °C27 December 1983	14.2 °C	1,585 mm	43	78
1982	32.5 °C4 August 1982	-9.1 °C11 February 1982	13.8 °C	1,611 mm	20	73
1981	34.1 °C17 July 1981	-15.9 °C11 December 1981	12.8 °C	1,282 mm	35	102
1980	33.1 °C21 July 1980	-10.9 °C15 January 1980	12.9 °C	1,892 mm	6	102
1979	34.9 °C30 July 1979	-6.9 °C7 February 1979	14.1 °C	1,813 mm	32	85
1978	34.9 °C5 July 1978	-11.7 °C1 February 1978	13.8 °C	1,242 mm	56	93
1977	34.6 °C4 August 1977	-13.1 °C16 February 1977	13.9 °C	1,561 mm	35	85
1976	33.4 °C14 August 1976	-10.6 °C30 December 1976	13.0 °C	2,035 mm	24	100
1975	35.1 °C22 July 1975	-11.5 °C24 January 1975	13.9 °C	1,789 mm	32	92
1974	33.2 °C4 August 1974	-10.8 °C12 February 1974	13.3 °C	1,811 mm	31	90
1973	37.1 °C13 August 1973	-4.9 °C18 December 1973	13.8 °C	1,180 mm	51	94
1972	33.7 °C30 July 1972	-5.5 °C2 March 1972	13.7 °C	2,276 mm	39	75
1971	35.4 °C16 July 1971	-6.6 °C11 January 1971	13.5 °C	1,395 mm	34	86
1970	35.4 °C21 July 1970	-11.3 °C20 January 1970	13.2 °C	1,740 mm	36	110
1969	36.0 °C13 August 1969	-7.5 °C14 March 1969	13.3 °C	1,395 mm	44	94
1968	35.0 °C23 July 1968	-13.9 °C18 February 1968	13.2 °C	1,592 mm	27	83
1967	35.2 °C5 August 1967	-6.9 °C16 January 1967	13.7 °C	1,554 mm	54	97
1966	33.5 °C8 August 1966	-6.4 °C26 January 1966	12.6 °C	1,786 mm	26	100
1965	32.0 °C23 August 1965	-11.2 °C31 January 1965	12.1 °C	1,898 mm	21	110
1964	34.7 °C3 July 1964	-4.2 °C13 December 1964	14.3 °C	1,437 mm	55	77
1963	33.9 °C18 July 1963	-9.4 °C10 February 1963	13.3 °C	1,834 mm	40	93
1962	35.4 °C28 July 1962	-4.6 °C17 February 1962	13.6 °C	1,385 mm	48	92
1961	34.4 °C16 July 1961	-5.1 °C17 January 1961	14.4 °C	1,802 mm	50	84
1960	35.8 °C3 August 1960	-5.3 °C27 January 1960	14.0 °C	1,410 mm	41	79
1959	34.3 °C3 August 1959	-5.7 °C18 January 1959	14.5 °C	1,598 mm	56	58
1958	34.6 °C31 July 1958	-8.3 °C9 March 1958	13.9 °C	1,304 mm	41	81
1957	33.3 °C31 July 1957	-6.1 °C29 March 1957	13.2 °C	1,739 mm	28	84
1956	36.0 °C3 August 1956	-6.0 °C3 February 1956	13.2 °C	1,804 mm	41	94
1955	34.8 °C21 July 1955	-9.3 °C12 January 1955	13.9 °C	1,331 mm	47	75
1954	34.8 °C24 August 1954	-6.7 °C23 February 1954	13.7 °C	1,662 mm	30	67
1953	35.6 °C20 August 1953	-8.6 °C23 February 1953	13.6 °C	1,931 mm	32	84
1952	32.7 °C2 August 1952	-6.4 °C17 January 1952	12.5 °C	1,547 mm	18	97
1951	34.0 °C31 July 1951	-8.3 °C16 February 1951	12.6 °C	1,304 mm	30	96
1950	32.7 °C2 August 1950	-5.9 °C29 December 1950	12.8 °C	1,287 mm	11	102
1949	32.2 °C7 August 1949	-4.6 °C17 January 1949	12.4 °C	1,428 mm	11	99
1948	32.0 °C26 July 1948	-5.8 °C4 January 1948	13.0 °C	1,290 mm	8	86
1947	33.2 °C12 August 1947	-7.4 °C4 February 1947	11.7 °C	1,141 mm	24	109
1946	35.9 °C14 July 1946	-5.8 °C13 March 1946	13.0 °C	1,068 mm	34	107
1945	31.8 °C9 August 1945	-9.4 °C27 February 1945	12.0 °C	1,692 mm	10	109
1944	32.6 °C18 July 1944	-5.6 °C9 January 1944	12.7 °C	1,106 mm	16	113
1943	32.0 °C15 August 1943	-6.7 °C12 January 1943	12.2 °C	997 mm	6	116
1942	34.9 °C4 August 1942	-11.3 °C26 February 1942	12.5 °C	1,012 mm	35	111
1941	31.2 °C9 August 1941	-11.2 °C12 February 1941	12.4 °C	1,307 mm	7	102
1940	31.9 °C24 July 1940	-13.7 °C9 February 1940	11.9 °C	1,063 mm	8	111

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

+1.4 °C

Hot days (≥ 30 °C)

80 d/yr

+39

Frost days (< 0 °C)

87 d/yr

Annual rainfall

1331 mm

-162 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	7.7 °C	+0.6 °C	14 mm	-28 mm
Feb	6.4 °C	-1.6 °C	29 mm	-30 mm
Mar	13.5 °C	+1.3 °C	139 mm	+38 mm
Apr	19.6 °C	+1.4 °C	63 mm	-66 mm
May	22.8 °C	+0.2 °C	173 mm	+28 mm
Jun	28.3 °C	+2.5 °C	232 mm	+19 mm
Jul	33.0 °C	+3.4 °C	113 mm	-131 mm
Aug	33.2 °C	+2.5 °C	196 mm	+38 mm
Sep	29.2 °C	+2.5 °C	136 mm	-53 mm
Oct	22.8 °C	+1.7 °C	173 mm	+66 mm
Nov	16.1 °C	+0.8 °C	27 mm	-39 mm
Dec	10.4 °C	+0.7 °C	36 mm	-4 mm

The year's extremes

Hottest day

36.4 °C

6 Aug 2025

Coldest day

-7.7 °C

9 Feb 2025

Wettest day

118.3 mm

10 Aug 2025

Windiest day

29.0 km/h

5 Feb 2025

Strongest gust

80.3 km/h

16 Jun 2025

Hottest feels-like

42.9 °C

31 Jul 2025

Coldest feels-like

-12.4 °C

9 Feb 2025

Snowiest day

5.0 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 Tsuyama?

Tsuyama has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.9 °C and it receives 1,493 mm of precipitation per year.

What is the hottest day ever recorded in Tsuyama?

The hottest day measured in Tsuyama between 1940 and 2025 was 4 August 1994, reaching 40.2 °C.

What is the coldest day in Tsuyama?

The coldest day measured in Tsuyama between 1940 and 2025 was 11 December 1981, at -15.9 °C.

Does it snow in Tsuyama?

Yes. Tsuyama gets on average 16.8 cm of snow per year and has around 81 frost days.

Has the climate of Tsuyama warmed?

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

What is the wettest day in Tsuyama?

The wettest day measured in Tsuyama between 1940 and 2025 was 14 August 2021, with 177 mm of rain in 24 hours.

What was the windiest day in Tsuyama?

The windiest day measured in Tsuyama between 1940 and 2025 was 14 September 1954, with winds reaching 55.2 km/h.

What is the warmest month in Tsuyama?

The warmest month in Tsuyama is August (26.1 °C on average); the coldest is January (2.2 °C).

How much does it rain in Tsuyama?

Tsuyama receives on average 1,493 mm of precipitation per year, spread over about 129 rainy days.

Is it sunny in Tsuyama?

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

What is the biggest single-day snowfall in Tsuyama?

The heaviest 24-hour snowfall measured in Tsuyama between 1940 and 2025 was 15 February 1968, with 25.3 cm.

Are there tropical nights in Tsuyama?

Yes: Tsuyama has on average 65 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Tsuyama?

In Tsuyama, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 23 July 2018, and the lowest was -20.1 °C on 11 December 1981.

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