City in Littoral, Benin
Cotonou weather by month and the best time to visit
When to go to Cotonou
Nov–Mar is driest, with harmattan haze Dec–Feb. Heavy rain Apr–July and a lighter wet spell Sep–Oct; streets flood in June.
Cotonou weather by month
Average daily high, rainfall and conditions.
- Jan30°20 mm
- Feb30°32 mm
- Mar30°78 mm
- Apr30°119 mm
- May29°174 mm
- Jun28°216 mm
- Jul27°165 mm
- Aug27°93 mm
- Sep27°198 mm
- Oct28°172 mm
- Nov29°55 mm
- Dec30°20 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 30°C86°F | 23°C74°F | 20 mm | 77% | Pleasant |
| February | 30°C87°F | 25°C77°F | 32 mm | 81% | Pleasant |
| March | 30°C86°F | 26°C78°F | 78 mm | 84% | Pleasant |
| April | 30°C85°F | 26°C78°F | 119 mm | 86% | Pleasant |
| May | 29°C84°F | 26°C78°F | 174 mm | 87% | Rainy |
| June | 28°C82°F | 24°C76°F | 216 mm | 88% | Rainy |
| July | 27°C81°F | 23°C74°F | 165 mm | 89% | Rainy |
| August | 27°C80°F | 23°C73°F | 93 mm | 88% | Pleasant |
| September | 27°C81°F | 24°C74°F | 198 mm | 89% | Rainy |
| October | 28°C83°F | 24°C76°F | 172 mm | 88% | Rainy |
| November | 29°C84°F | 25°C77°F | 55 mm | 85% | Pleasant |
| December | 30°C86°F | 24°C75°F | 20 mm | 79% | Pleasant |
Best months across Benin
| Place | Best months | Warmest month |
|---|---|---|
| Cotonou | Nov–Mar | Feb (30°C) |
| Ouidah | Nov–Mar | Feb (32°C) |
Quick answers
What is the best month to visit Cotonou?
Nov–Mar. Nov–Mar is driest, with harmattan haze Dec–Feb. Heavy rain Apr–July and a lighter wet spell Sep–Oct; streets flood in June.
When is the rainy season in Cotonou?
Rain peaks in June with about 216 mm. Months with 150 mm or more: May–Jul, Sep–Oct.
What is the hottest month in Cotonou?
February, with average highs of 30°C (87°F).
How cold does Cotonou get?
The coolest nights are in August, averaging 23°C (73°F).
More about Cotonou
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.