Ouessé climate — normals and trends
Ouessé (Benin) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 1,128 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 (29.1 °C on average) and the coldest is August (24.5 °C). Rainfall peaks in September.
Ouessé averages 0 frost days, 285 hot days (≥ 30 °C) and 160 rainy days per year.
Ouessé has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.1 °C (on 16 March 2024) and the coldest 12.8 °C (on 12 December 1961).
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
OuesséCollines Department
- coords
- 8.49°, 2.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
32.4°C
Average daily low
22.3°C
Annual rainfall
1,128mm
Sunshine / day
9.6h
Mean relative humidity
72%
Average peak wind
10.9km/h
Seasonal range
4.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
285 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.4 °C
Average feels-like low
25.4 °C
Average peak gust
25.9 km/h
Tropical nights (≥ 20 °C)
331 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.83 · p = < 0.001
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
40.1 °C
16 March 2024
Coldest day
12.8 °C
12 December 1961
Wettest day
209 mm
23 July 2017
Windiest day
21.5 km/h
8 March 1962
Strongest gust
51.5 km/h
29 April 1945
Hottest feels-like
46.4 °C
28 March 2024
Coldest feels-like
9.4 °C
12 December 1961
Sunniest day
12.1 h
23 May 1944
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?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 35.6 °C | +1.5 °C | 0 mm | -4 mm |
| Feb | 36.7 °C | +1.2 °C | 3 mm | -11 mm |
| Mar | 37.3 °C | +1.7 °C | 11 mm | -41 mm |
| Apr | 35.7 °C | +1.5 °C | 47 mm | -45 mm |
| May | 33.7 °C | +1.1 °C | 74 mm | -47 mm |
| Jun | 32.0 °C | +1.4 °C | 115 mm | -22 mm |
| Jul | 29.8 °C | +0.7 °C | 168 mm | -12 mm |
| Aug | 28.9 °C | +0.3 °C | 196 mm | +6 mm |
| Sep | 31.0 °C | +1.2 °C | 191 mm | -10 mm |
| Oct | 32.5 °C | +1.2 °C | 85 mm | -28 mm |
| Nov | 34.8 °C | +1.5 °C | 12 mm | -8 mm |
| Dec | 35.3 °C | +1.6 °C | 0 mm | -5 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Ouessé?
Ouessé has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 1,128 mm of precipitation per year.
What is the hottest day ever recorded in Ouessé?
The hottest day measured in Ouessé between 1940 and 2025 was 16 March 2024, reaching 40.1 °C.
What is the coldest day in Ouessé?
The coldest day measured in Ouessé between 1940 and 2025 was 12 December 1961, at 12.8 °C.
Does it snow in Ouessé?
Almost never: Ouessé sees virtually no snow, with about 0 frost days per year.
Has the climate of Ouessé warmed?
Yes: Ouessé warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ouessé?
The wettest day measured in Ouessé between 1940 and 2025 was 23 July 2017, with 209 mm of rain in 24 hours.
What was the windiest day in Ouessé?
The windiest day measured in Ouessé between 1940 and 2025 was 8 March 1962, with winds reaching 21.5 km/h.
What is the warmest month in Ouessé?
The warmest month in Ouessé is March (29.1 °C on average); the coldest is August (24.5 °C).
How much does it rain in Ouessé?
Ouessé receives on average 1,128 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Ouessé?
Ouessé gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Ouessé?
Yes: Ouessé has on average 331 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ouessé?
In Ouessé, between 1940 and 2025, the highest apparent temperature reached 46.4 °C on 28 March 2024, and the lowest was 9.4 °C on 12 December 1961.
Compare Ouessé with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ouessé