Kétou climate — normals and trends

Q: What is the climate of Kétou?

Kétou has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.9 °C and it receives 991 mm of precipitation per year.

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

The hottest day measured in Kétou between 1940 and 2025 was 26 March 1990, reaching 39.4 °C.

Q: What is the coldest day in Kétou?

The coldest day measured in Kétou between 1940 and 2025 was 31 December 1945, at 16.5 °C.

Q: Does it snow in Kétou?

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

Q: Has the climate of Kétou warmed?

Yes: Kétou warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Kétou?

The wettest day measured in Kétou between 1940 and 2025 was 4 July 2020, with 132 mm of rain in 24 hours.

Q: What was the windiest day in Kétou?

The windiest day measured in Kétou between 1940 and 2025 was 3 August 1977, with winds reaching 20.5 km/h.

Q: What is the warmest month in Kétou?

The warmest month in Kétou is February (29.0 °C on average); the coldest is August (24.9 °C).

Q: How much does it rain in Kétou?

Kétou receives on average 991 mm of precipitation per year, spread over about 184 rainy days.

Q: Is it sunny in Kétou?

Kétou gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

Kétou (Benin) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.9 °C and it receives 991 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 February (29.0 °C on average) and the coldest is August (24.9 °C). Rainfall peaks in June.

Kétou averages 0 frost days, 259 hot days (≥ 30 °C) and 184 rainy days per year.

Kétou has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.4 °C (on 26 March 1990) and the coldest 16.5 °C (on 31 December 1945).

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

KétouPlateau Department

coords: 7.36°, 2.60°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthFebruaryColdest monthAugustWettest monthJuneDriest monthJanuary

Mean daily temperature

26.9°C

Average daily high

31.7°C

Average daily low

23.7°C

Annual rainfall

991mm

Sunshine / day

9.3h

Mean relative humidity

78%

Average peak wind

12.0km/h

Seasonal range

4.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

259 d/yr

Rainy days (≥ 1 mm)

184 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.6 °C

Average feels-like low

27.9 °C

Average peak gust

27.4 km/h

Tropical nights (≥ 20 °C)

362 d/yr

Solar radiation

17.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.83 · 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

39.4 °C

26 March 1990

Coldest day

16.5 °C

31 December 1945

Wettest day

132 mm

4 July 2020

Windiest day

20.5 km/h

3 August 1977

Strongest gust

46.4 km/h

30 March 1942

Hottest feels-like

45.5 °C

28 March 2024

Coldest feels-like

12.9 °C

9 January 1957

Sunniest day

12.0 h

19 May 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.3 °C3 March 2025	21.8 °C1 September 2025	28.0 °C	812 mm	290
2024	39.1 °C13 February 2024	20.6 °C21 December 2024	28.7 °C	684 mm	313
2023	39.1 °C21 February 2023	20.7 °C2 January 2023	28.3 °C	1,094 mm	308
2022	38.6 °C26 February 2022	20.4 °C31 January 2022	27.8 °C	885 mm	280
2021	38.5 °C7 February 2021	21.6 °C4 July 2021	28.4 °C	731 mm	328
2020	39.3 °C21 February 2020	19.5 °C3 January 2020	28.1 °C	787 mm	294
2019	38.9 °C10 February 2019	21.8 °C7 June 2019	28.0 °C	1,300 mm	300
2018	38.3 °C4 February 2018	19.6 °C6 January 2018	27.8 °C	1,200 mm	295
2017	37.4 °C24 February 2017	21.4 °C24 December 2017	27.9 °C	960 mm	295
2016	38.7 °C24 February 2016	21.3 °C4 January 2016	28.2 °C	1,112 mm	301
2015	36.7 °C20 March 2015	18.1 °C6 January 2015	27.8 °C	809 mm	301
2014	36.9 °C23 February 2014	21.3 °C28 December 2014	27.5 °C	1,012 mm	275
2013	37.9 °C16 February 2013	20.0 °C5 January 2013	27.7 °C	691 mm	287
2012	38.2 °C23 March 2012	19.6 °C15 January 2012	27.4 °C	1,031 mm	275
2011	36.6 °C28 January 2011	19.1 °C1 January 2011	27.7 °C	856 mm	303
2010	39.2 °C24 February 2010	21.5 °C31 December 2010	28.2 °C	890 mm	312
2009	36.4 °C6 February 2009	20.0 °C23 January 2009	27.6 °C	857 mm	294
2008	37.1 °C14 February 2008	18.5 °C23 January 2008	27.4 °C	986 mm	285
2007	38.2 °C6 March 2007	19.3 °C13 January 2007	27.5 °C	932 mm	284
2006	38.6 °C25 January 2006	21.4 °C21 June 2006	27.5 °C	1,016 mm	266
2005	36.5 °C23 February 2005	19.5 °C7 January 2005	27.5 °C	824 mm	261
2004	37.6 °C13 March 2004	21.5 °C21 January 2004	27.3 °C	878 mm	264
2003	37.5 °C24 March 2003	18.0 °C9 December 2003	27.4 °C	898 mm	267
2002	36.3 °C19 February 2002	17.7 °C28 December 2002	27.1 °C	1,021 mm	261
2001	38.0 °C20 February 2001	21.2 °C13 February 2001	27.2 °C	805 mm	255
2000	38.6 °C6 March 2000	19.2 °C2 February 2000	27.3 °C	907 mm	260
1999	36.3 °C5 February 1999	21.1 °C15 August 1999	26.9 °C	1,147 mm	249
1998	39.1 °C4 March 1998	19.6 °C21 January 1998	27.8 °C	851 mm	281
1997	37.7 °C20 February 1997	21.4 °C15 February 1997	27.1 °C	964 mm	267
1996	36.4 °C24 February 1996	21.6 °C8 September 1996	27.0 °C	1,035 mm	254
1995	37.7 °C11 February 1995	19.1 °C26 December 1995	27.2 °C	1,172 mm	260
1994	36.3 °C16 February 1994	19.1 °C19 December 1994	27.1 °C	1,007 mm	259
1993	36.3 °C11 April 1993	18.3 °C7 January 1993	27.1 °C	1,073 mm	273
1992	37.9 °C22 February 1992	18.4 °C6 January 1992	26.9 °C	868 mm	248
1991	36.8 °C10 March 1991	18.5 °C1 January 1991	26.9 °C	1,138 mm	250
1990	39.4 °C26 March 1990	20.8 °C25 December 1990	27.1 °C	976 mm	268
1989	37.1 °C17 February 1989	17.2 °C3 January 1989	26.9 °C	1,164 mm	259
1988	37.3 °C20 February 1988	19.2 °C25 December 1988	27.1 °C	1,261 mm	277
1987	36.9 °C24 January 1987	21.0 °C28 September 1987	27.6 °C	1,114 mm	301
1986	37.8 °C2 February 1986	18.9 °C21 December 1986	26.7 °C	963 mm	264
1985	38.9 °C24 February 1985	19.1 °C6 December 1985	26.8 °C	1,190 mm	256
1984	37.2 °C20 February 1984	19.7 °C14 December 1984	27.1 °C	983 mm	300
1983	38.8 °C7 March 1983	18.9 °C9 January 1983	27.2 °C	768 mm	266
1982	37.1 °C5 February 1982	19.3 °C9 December 1982	26.8 °C	944 mm	258
1981	37.1 °C19 February 1981	20.7 °C30 July 1981	26.9 °C	1,099 mm	267
1980	36.4 °C9 February 1980	18.8 °C20 December 1980	26.8 °C	1,399 mm	260
1979	36.4 °C28 February 1979	18.5 °C12 December 1979	26.8 °C	1,160 mm	258
1978	36.4 °C6 February 1978	19.7 °C5 July 1978	26.6 °C	965 mm	252
1977	37.2 °C23 March 1977	18.9 °C26 December 1977	27.0 °C	871 mm	255
1976	35.8 °C5 April 1976	18.7 °C2 December 1976	26.1 °C	1,005 mm	216
1975	35.7 °C31 January 1975	18.8 °C1 January 1975	26.1 °C	1,067 mm	219
1974	35.9 °C11 March 1974	18.2 °C30 December 1974	26.3 °C	1,145 mm	231
1973	38.7 °C27 January 1973	19.7 °C29 November 1973	27.1 °C	1,154 mm	272
1972	36.3 °C15 December 1972	20.6 °C14 August 1972	26.8 °C	1,068 mm	260
1971	36.2 °C5 February 1971	18.2 °C20 December 1971	26.2 °C	1,322 mm	248
1970	36.6 °C23 February 1970	18.9 °C4 December 1970	26.7 °C	1,230 mm	257
1969	37.6 °C4 February 1969	21.3 °C30 July 1969	26.7 °C	1,076 mm	241
1968	36.5 °C11 April 1968	17.5 °C18 January 1968	26.3 °C	1,458 mm	236
1967	35.8 °C11 March 1967	18.5 °C4 January 1967	26.3 °C	1,131 mm	217
1966	38.8 °C16 March 1966	17.6 °C5 January 1966	27.0 °C	800 mm	273
1965	36.2 °C22 February 1965	20.8 °C6 September 1965	26.5 °C	950 mm	262
1964	37.4 °C31 March 1964	17.0 °C13 January 1964	26.7 °C	617 mm	261
1963	37.4 °C14 March 1963	19.4 °C11 March 1963	26.5 °C	1,121 mm	265
1962	37.9 °C3 March 1962	18.2 °C8 February 1962	26.3 °C	1,075 mm	228
1961	37.7 °C8 March 1961	18.6 °C15 August 1961	26.7 °C	714 mm	269
1960	37.3 °C15 February 1960	19.2 °C2 January 1960	26.4 °C	1,038 mm	249
1959	37.3 °C2 February 1959	19.1 °C1 January 1959	26.4 °C	872 mm	247
1958	36.4 °C3 March 1958	19.0 °C3 August 1958	26.2 °C	747 mm	229
1957	36.2 °C19 February 1957	16.5 °C9 January 1957	25.6 °C	1,265 mm	188
1956	36.5 °C16 February 1956	18.2 °C10 August 1956	25.7 °C	959 mm	199
1955	36.8 °C21 February 1955	18.4 °C30 December 1955	26.1 °C	1,124 mm	220
1954	36.9 °C9 February 1954	17.8 °C24 July 1954	26.0 °C	833 mm	217
1953	36.0 °C30 January 1953	18.2 °C3 December 1953	26.3 °C	840 mm	233
1952	36.8 °C3 March 1952	19.0 °C4 February 1952	26.2 °C	1,011 mm	232
1951	35.7 °C17 February 1951	20.2 °C18 August 1951	26.2 °C	1,220 mm	234
1950	37.0 °C15 February 1950	19.5 °C4 August 1950	26.0 °C	959 mm	223
1949	37.9 °C19 February 1949	19.6 °C14 August 1949	26.4 °C	893 mm	256
1948	36.8 °C27 February 1948	19.0 °C5 January 1948	26.3 °C	866 mm	226
1947	37.0 °C30 January 1947	18.5 °C21 January 1947	26.3 °C	1,114 mm	223
1946	38.2 °C23 February 1946	18.0 °C1 January 1946	26.3 °C	802 mm	217
1945	38.6 °C6 April 1945	16.5 °C31 December 1945	26.5 °C	878 mm	243
1944	37.1 °C14 February 1944	18.4 °C1 February 1944	26.2 °C	1,160 mm	243
1943	36.0 °C5 March 1943	18.3 °C20 August 1943	25.7 °C	874 mm	232
1942	36.0 °C28 February 1942	19.5 °C24 July 1942	26.1 °C	857 mm	229
1941	36.4 °C9 March 1941	20.9 °C22 September 1941	26.2 °C	928 mm	235
1940	35.5 °C23 February 1940	20.2 °C4 August 1940	26.0 °C	934 mm	213

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

32.9 °C

+1.2 °C

Hot days (≥ 30 °C)

290 d/yr

+31

Frost days (< 0 °C)

0 d/yr

Annual rainfall

812 mm

-179 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	36.4 °C	+2.5 °C	3 mm	-9 mm
Feb	36.4 °C	+1.5 °C	16 mm	-10 mm
Mar	36.1 °C	+1.8 °C	42 mm	-23 mm
Apr	34.2 °C	+1.2 °C	42 mm	-52 mm
May	32.9 °C	+1.2 °C	92 mm	-39 mm
Jun	31.1 °C	+1.2 °C	128 mm	-17 mm
Jul	29.3 °C	+0.6 °C	90 mm	-37 mm
Aug	28.9 °C	+0.4 °C	97 mm	-13 mm
Sep	30.2 °C	+0.8 °C	168 mm	+36 mm
Oct	31.3 °C	+0.8 °C	109 mm	+7 mm
Nov	33.4 °C	+1.3 °C	15 mm	-18 mm
Dec	34.4 °C	+1.3 °C	10 mm	-5 mm

The year's extremes

Hottest day

38.3 °C

3 Mar 2025

Coldest day

21.8 °C

1 Sep 2025

Wettest day

50.0 mm

4 Aug 2025

Windiest day

18.2 km/h

18 Mar 2025

Strongest gust

41.0 km/h

18 Mar 2025

Hottest feels-like

43.9 °C

27 Mar 2025

Coldest feels-like

21.1 °C

12 Jan 2025

Sunniest day

12.0 h

19 Mar 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 Kétou?

Kétou has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.9 °C and it receives 991 mm of precipitation per year.

What is the hottest day ever recorded in Kétou?

The hottest day measured in Kétou between 1940 and 2025 was 26 March 1990, reaching 39.4 °C.

What is the coldest day in Kétou?

The coldest day measured in Kétou between 1940 and 2025 was 31 December 1945, at 16.5 °C.

Does it snow in Kétou?

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

Has the climate of Kétou warmed?

Yes: Kétou warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Kétou?

The wettest day measured in Kétou between 1940 and 2025 was 4 July 2020, with 132 mm of rain in 24 hours.

What was the windiest day in Kétou?

The windiest day measured in Kétou between 1940 and 2025 was 3 August 1977, with winds reaching 20.5 km/h.

What is the warmest month in Kétou?

The warmest month in Kétou is February (29.0 °C on average); the coldest is August (24.9 °C).

How much does it rain in Kétou?

Kétou receives on average 991 mm of precipitation per year, spread over about 184 rainy days.

Is it sunny in Kétou?

Kétou gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.

Are there tropical nights in Kétou?

Yes: Kétou has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Kétou?

In Kétou, between 1940 and 2025, the highest apparent temperature reached 45.5 °C on 28 March 2024, and the lowest was 12.9 °C on 9 January 1957.

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