Adjarra climate — normals and trends

Q: What is the climate of Adjarra?

Adjarra has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 1,618 mm of precipitation per year.

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

The hottest day measured in Adjarra between 1940 and 2025 was 6 February 1966, reaching 33.4 °C.

Q: What is the coldest day in Adjarra?

The coldest day measured in Adjarra between 1940 and 2025 was 9 January 1957, at 19.0 °C.

Q: Does it snow in Adjarra?

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

Q: Has the climate of Adjarra warmed?

Yes: Adjarra warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Adjarra?

The wettest day measured in Adjarra between 1940 and 2025 was 8 September 1944, with 158 mm of rain in 24 hours.

Q: What was the windiest day in Adjarra?

The windiest day measured in Adjarra between 1940 and 2025 was 17 August 1991, with winds reaching 27.1 km/h.

Q: What is the warmest month in Adjarra?

The warmest month in Adjarra is March (27.7 °C on average); the coldest is August (24.5 °C).

Q: How much does it rain in Adjarra?

Adjarra receives on average 1,618 mm of precipitation per year, spread over about 264 rainy days.

Q: Is it sunny in Adjarra?

Adjarra gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Adjarra (Benin) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.3 °C and it receives 1,618 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 March (27.7 °C on average) and the coldest is August (24.5 °C). Rainfall peaks in June.

Adjarra averages 0 frost days, 98 hot days (≥ 30 °C) and 264 rainy days per year.

Adjarra has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 33.4 °C (on 6 February 1966) and the coldest 19.0 °C (on 9 January 1957).

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

AdjarraOuémé Department

coords: 6.53°, 2.67°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthMarchColdest monthAugustWettest monthJuneDriest monthJanuary

Mean daily temperature

26.3°C

Average daily high

28.8°C

Average daily low

24.5°C

Annual rainfall

1,618mm

Sunshine / day

9.8h

Mean relative humidity

84%

Average peak wind

15.7km/h

Seasonal range

3.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

98 d/yr

Rainy days (≥ 1 mm)

264 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.7 °C

Average feels-like low

28.5 °C

Average peak gust

30.6 km/h

Tropical nights (≥ 20 °C)

365 d/yr

Solar radiation

16.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.82 · 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

33.4 °C

6 February 1966

Coldest day

19.0 °C

9 January 1957

Wettest day

158 mm

8 September 1944

Windiest day

27.1 km/h

17 August 1991

Strongest gust

49.7 km/h

8 July 1990

Hottest feels-like

40.5 °C

27 March 2024

Coldest feels-like

15.4 °C

9 January 1957

Sunniest day

12.0 h

14 March 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.3 °C5 January 2025	22.8 °C14 July 2025	27.1 °C	1,385 mm	175
2024	33.0 °C15 March 2024	22.5 °C21 December 2024	27.6 °C	1,213 mm	213
2023	32.8 °C18 December 2023	21.7 °C1 January 2023	27.4 °C	1,521 mm	207
2022	32.2 °C29 January 2022	21.5 °C31 January 2022	26.9 °C	1,396 mm	166
2021	32.3 °C3 March 2021	22.5 °C27 June 2021	27.3 °C	1,430 mm	189
2020	33.0 °C8 February 2020	21.2 °C3 January 2020	27.1 °C	1,168 mm	181
2019	32.3 °C1 January 2019	23.3 °C7 June 2019	27.2 °C	1,885 mm	179
2018	31.7 °C1 May 2018	21.8 °C6 January 2018	26.9 °C	1,547 mm	156
2017	32.2 °C16 April 2017	22.8 °C24 December 2017	26.9 °C	1,394 mm	177
2016	33.1 °C17 March 2016	22.1 °C27 January 2016	27.1 °C	1,504 mm	187
2015	31.7 °C17 May 2015	19.2 °C14 January 2015	26.7 °C	1,266 mm	146
2014	31.6 °C5 May 2014	22.1 °C14 August 2014	26.7 °C	1,608 mm	116
2013	31.7 °C13 January 2013	21.5 °C19 December 2013	26.7 °C	1,102 mm	124
2012	31.8 °C15 April 2012	21.9 °C15 January 2012	26.6 °C	1,593 mm	120
2011	31.9 °C28 February 2011	21.1 °C17 January 2011	26.7 °C	1,316 mm	154
2010	32.4 °C29 January 2010	22.9 °C31 December 2010	27.2 °C	1,429 mm	166
2009	31.6 °C1 December 2009	22.2 °C24 January 2009	26.8 °C	1,319 mm	145
2008	31.8 °C12 February 2008	20.9 °C23 January 2008	26.6 °C	1,625 mm	136
2007	32.7 °C13 February 2007	20.8 °C13 January 2007	26.7 °C	1,463 mm	133
2006	31.8 °C1 April 2006	22.3 °C3 September 2006	26.8 °C	1,532 mm	145
2005	32.2 °C21 January 2005	20.8 °C9 January 2005	26.7 °C	1,274 mm	150
2004	31.8 °C8 March 2004	22.3 °C25 July 2004	26.5 °C	1,383 mm	122
2003	32.3 °C24 March 2003	22.1 °C9 December 2003	26.7 °C	1,386 mm	133
2002	32.0 °C24 February 2002	20.8 °C27 December 2002	26.4 °C	1,471 mm	112
2001	31.8 °C6 March 2001	22.5 °C31 July 2001	26.4 °C	1,342 mm	109
2000	32.3 °C6 March 2000	21.5 °C2 February 2000	26.4 °C	1,375 mm	121
1999	31.2 °C5 February 1999	21.9 °C15 August 1999	26.4 °C	1,683 mm	108
1998	32.9 °C6 March 1998	21.2 °C20 January 1998	26.9 °C	1,059 mm	167
1997	31.7 °C4 March 1997	22.4 °C8 August 1997	26.3 °C	1,439 mm	90
1996	30.9 °C8 April 1996	22.6 °C6 July 1996	26.4 °C	1,641 mm	76
1995	31.8 °C24 February 1995	21.9 °C26 December 1995	26.5 °C	1,578 mm	116
1994	31.6 °C3 March 1994	21.3 °C19 December 1994	26.3 °C	1,489 mm	101
1993	31.5 °C20 February 1993	20.9 °C12 January 1993	26.4 °C	1,424 mm	88
1992	32.4 °C21 March 1992	20.1 °C6 January 1992	26.1 °C	1,266 mm	93
1991	31.5 °C27 March 1991	20.7 °C1 January 1991	26.3 °C	1,637 mm	80
1990	32.3 °C26 March 1990	21.8 °C19 August 1990	26.3 °C	1,357 mm	94
1989	31.6 °C4 March 1989	19.9 °C3 January 1989	26.1 °C	1,669 mm	108
1988	31.7 °C5 April 1988	22.1 °C27 December 1988	26.5 °C	1,981 mm	113
1987	31.8 °C12 March 1987	22.7 °C28 September 1987	26.8 °C	1,716 mm	148
1986	31.2 °C6 April 1986	21.1 °C21 December 1986	26.1 °C	1,397 mm	84
1985	31.1 °C25 February 1985	21.7 °C18 December 1985	26.1 °C	1,719 mm	89
1984	32.3 °C16 March 1984	22.0 °C7 February 1984	26.3 °C	1,420 mm	91
1983	32.2 °C7 March 1983	19.6 °C19 January 1983	26.2 °C	1,210 mm	97
1982	31.4 °C22 March 1982	22.0 °C7 August 1982	26.1 °C	1,535 mm	77
1981	31.2 °C18 February 1981	22.2 °C26 August 1981	26.3 °C	1,789 mm	93
1980	31.3 °C7 April 1980	21.7 °C21 December 1980	26.3 °C	2,180 mm	76
1979	31.4 °C19 April 1979	21.7 °C12 December 1979	26.3 °C	1,869 mm	71
1978	31.2 °C23 February 1978	21.3 °C31 July 1978	25.9 °C	1,869 mm	46
1977	31.4 °C26 March 1977	21.3 °C26 December 1977	26.1 °C	1,587 mm	52
1976	30.8 °C21 January 1976	21.8 °C2 December 1976	25.6 °C	1,841 mm	29
1975	31.2 °C5 April 1975	20.6 °C26 July 1975	25.7 °C	1,814 mm	53
1974	31.3 °C11 February 1974	20.5 °C30 December 1974	25.9 °C	1,913 mm	52
1973	32.2 °C7 March 1973	22.2 °C2 August 1973	26.5 °C	1,957 mm	115
1972	31.6 °C15 December 1972	21.9 °C14 August 1972	26.1 °C	1,877 mm	100
1971	31.5 °C25 April 1971	20.7 °C20 December 1971	25.9 °C	2,329 mm	63
1970	31.7 °C18 February 1970	22.0 °C4 December 1970	26.2 °C	1,941 mm	101
1969	31.8 °C16 April 1969	22.3 °C20 July 1969	26.2 °C	1,835 mm	93
1968	31.4 °C16 April 1968	20.7 °C18 January 1968	25.9 °C	2,418 mm	46
1967	31.6 °C15 April 1967	21.7 °C4 January 1967	25.9 °C	1,814 mm	64
1966	33.4 °C6 February 1966	20.6 °C5 January 1966	26.3 °C	1,611 mm	109
1965	31.2 °C5 March 1965	22.1 °C16 July 1965	25.9 °C	1,694 mm	46
1964	31.6 °C30 March 1964	20.7 °C13 January 1964	25.9 °C	1,368 mm	94
1963	32.6 °C10 March 1963	22.3 °C11 March 1963	26.1 °C	2,011 mm	69
1962	31.7 °C3 March 1962	20.7 °C8 February 1962	25.8 °C	1,834 mm	67
1961	31.8 °C12 March 1961	20.5 °C15 August 1961	25.9 °C	1,552 mm	80
1960	32.0 °C15 February 1960	21.7 °C19 August 1960	25.9 °C	1,704 mm	58
1959	32.2 °C2 February 1959	21.2 °C15 August 1959	25.9 °C	1,340 mm	71
1958	31.6 °C16 February 1958	20.7 °C31 July 1958	25.8 °C	1,593 mm	60
1957	31.0 °C8 February 1957	19.0 °C9 January 1957	25.4 °C	2,239 mm	15
1956	30.7 °C10 January 1956	20.5 °C10 August 1956	25.4 °C	1,733 mm	13
1955	31.2 °C19 February 1955	21.2 °C30 December 1955	25.6 °C	1,730 mm	46
1954	31.2 °C9 February 1954	20.9 °C31 July 1954	25.6 °C	1,532 mm	25
1953	30.9 °C15 March 1953	21.3 °C3 December 1953	25.9 °C	1,702 mm	48
1952	31.5 °C3 March 1952	21.7 °C4 February 1952	25.9 °C	2,051 mm	73
1951	31.3 °C27 March 1951	22.3 °C19 August 1951	25.9 °C	2,102 mm	67
1950	31.5 °C15 February 1950	20.9 °C5 September 1950	25.6 °C	1,915 mm	61
1949	31.3 °C17 February 1949	21.1 °C15 August 1949	25.9 °C	1,400 mm	67
1948	32.1 °C11 March 1948	20.9 °C5 February 1948	25.7 °C	1,530 mm	54
1947	31.5 °C19 January 1947	21.2 °C21 January 1947	25.8 °C	2,060 mm	64
1946	32.6 °C14 February 1946	21.1 °C4 August 1946	25.7 °C	1,201 mm	89
1945	32.4 °C6 April 1945	19.8 °C10 February 1945	25.7 °C	1,427 mm	98
1944	33.2 °C4 February 1944	21.2 °C31 January 1944	25.8 °C	1,851 mm	78
1943	31.3 °C20 February 1943	19.7 °C18 August 1943	25.4 °C	1,805 mm	17
1942	31.1 °C16 March 1942	21.4 °C19 July 1942	25.7 °C	1,444 mm	32
1941	31.3 °C8 March 1941	22.4 °C5 August 1941	25.8 °C	1,749 mm	28
1940	30.7 °C4 March 1940	21.3 °C4 August 1940	25.7 °C	1,787 mm	26

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

29.5 °C

+0.7 °C

Hot days (≥ 30 °C)

175 d/yr

+77

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1385 mm

-233 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.2 °C	+1.6 °C	21 mm	-22 mm
Feb	31.1 °C	+0.8 °C	34 mm	-27 mm
Mar	31.2 °C	+0.9 °C	59 mm	-54 mm
Apr	30.8 °C	+0.7 °C	84 mm	-58 mm
May	30.2 °C	+0.9 °C	172 mm	-42 mm
Jun	28.9 °C	+1.0 °C	250 mm	-15 mm
Jul	27.0 °C	+0.2 °C	135 mm	-49 mm
Aug	26.6 °C	+0.2 °C	86 mm	-22 mm
Sep	27.7 °C	+0.5 °C	190 mm	+33 mm
Oct	28.8 °C	+0.5 °C	223 mm	+50 mm
Nov	30.0 °C	+0.6 °C	68 mm	-34 mm
Dec	30.1 °C	+0.5 °C	64 mm	+8 mm

The year's extremes

Hottest day

32.3 °C

5 Jan 2025

Coldest day

22.8 °C

14 Jul 2025

Wettest day

59.6 mm

6 Oct 2025

Windiest day

27.1 km/h

12 Jul 2025

Strongest gust

47.2 km/h

12 Jul 2025

Hottest feels-like

38.9 °C

11 Feb 2025

Coldest feels-like

25.3 °C

12 Jan 2025

Sunniest day

12.0 h

17 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 Adjarra?

Adjarra has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 1,618 mm of precipitation per year.

What is the hottest day ever recorded in Adjarra?

The hottest day measured in Adjarra between 1940 and 2025 was 6 February 1966, reaching 33.4 °C.

What is the coldest day in Adjarra?

The coldest day measured in Adjarra between 1940 and 2025 was 9 January 1957, at 19.0 °C.

Does it snow in Adjarra?

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

Has the climate of Adjarra warmed?

Yes: Adjarra warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Adjarra?

The wettest day measured in Adjarra between 1940 and 2025 was 8 September 1944, with 158 mm of rain in 24 hours.

What was the windiest day in Adjarra?

The windiest day measured in Adjarra between 1940 and 2025 was 17 August 1991, with winds reaching 27.1 km/h.

What is the warmest month in Adjarra?

The warmest month in Adjarra is March (27.7 °C on average); the coldest is August (24.5 °C).

How much does it rain in Adjarra?

Adjarra receives on average 1,618 mm of precipitation per year, spread over about 264 rainy days.

Is it sunny in Adjarra?

Adjarra gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.

Are there tropical nights in Adjarra?

Yes: Adjarra has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Adjarra?

In Adjarra, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 27 March 2024, and the lowest was 15.4 °C on 9 January 1957.

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