Savalou climate — normals and trends
Savalou (Benin) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.8 °C and it receives 1,155 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 (29.2 °C on average) and the coldest is August (24.7 °C). Rainfall peaks in September.
Savalou averages 0 frost days, 289 hot days (≥ 30 °C) and 162 rainy days per year.
Savalou has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.1 °C (on 16 March 1966) and the coldest 13.6 °C (on 28 December 2002).
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
SavalouCollines Department
- coords
- 7.93°, 1.98°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.8°C
Average daily high
32.4°C
Average daily low
22.7°C
Annual rainfall
1,155mm
Sunshine / day
9.7h
Mean relative humidity
74%
Average peak wind
11.0km/h
Seasonal range
4.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
289 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.9 °C
Average feels-like low
26.3 °C
Average peak gust
26.4 km/h
Tropical nights (≥ 20 °C)
345 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.82 · 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 1966
Coldest day
13.6 °C
28 December 2002
Wettest day
127 mm
2 September 2021
Windiest day
22.2 km/h
3 March 2023
Strongest gust
54.4 km/h
10 October 1988
Hottest feels-like
46.6 °C
2 April 2024
Coldest feels-like
10.6 °C
28 December 1955
Sunniest day
12.0 h
29 May 1950
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 35.5 °C | +1.4 °C | 0 mm | -4 mm |
| Feb | 36.7 °C | +1.2 °C | 5 mm | -12 mm |
| Mar | 37.0 °C | +1.5 °C | 27 mm | -34 mm |
| Apr | 35.3 °C | +1.2 °C | 45 mm | -56 mm |
| May | 33.8 °C | +1.1 °C | 68 mm | -63 mm |
| Jun | 32.1 °C | +1.4 °C | 147 mm | -10 mm |
| Jul | 30.0 °C | +0.8 °C | 111 mm | -68 mm |
| Aug | 29.2 °C | +0.4 °C | 132 mm | -51 mm |
| Sep | 31.1 °C | +1.2 °C | 161 mm | -33 mm |
| Oct | 32.3 °C | +1.0 °C | 115 mm | +10 mm |
| Nov | 34.5 °C | +1.3 °C | 21 mm | +2 mm |
| Dec | 35.3 °C | +1.7 °C | 1 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 Savalou?
Savalou has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.8 °C and it receives 1,155 mm of precipitation per year.
What is the hottest day ever recorded in Savalou?
The hottest day measured in Savalou between 1940 and 2025 was 16 March 1966, reaching 40.1 °C.
What is the coldest day in Savalou?
The coldest day measured in Savalou between 1940 and 2025 was 28 December 2002, at 13.6 °C.
Does it snow in Savalou?
Almost never: Savalou sees virtually no snow, with about 0 frost days per year.
Has the climate of Savalou warmed?
Yes: Savalou warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Savalou?
The wettest day measured in Savalou between 1940 and 2025 was 2 September 2021, with 127 mm of rain in 24 hours.
What was the windiest day in Savalou?
The windiest day measured in Savalou between 1940 and 2025 was 3 March 2023, with winds reaching 22.2 km/h.
What is the warmest month in Savalou?
The warmest month in Savalou is March (29.2 °C on average); the coldest is August (24.7 °C).
How much does it rain in Savalou?
Savalou receives on average 1,155 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in Savalou?
Savalou gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Savalou?
Yes: Savalou has on average 345 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Savalou?
In Savalou, between 1940 and 2025, the highest apparent temperature reached 46.6 °C on 2 April 2024, and the lowest was 10.6 °C on 28 December 1955.
Compare Savalou with another city
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Nearby cities
The climate around Savalou