Cotonou Weather & Climate: Best Time to Visit

The temperature in Cotonou remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures reach a very warm 31°C (88°F) in March. In August, the coolest month of the year, temperatures drop to a comfortable 27°C (81°F).

At night, temperatures range from around 27°C (81°F) in March to 24°C (75°F) in August.

Check out our detailed temperature page for more information.

Temperature ranges by month

Cotonou has a relatively rainy climate with high precipitation levels, averaging 1277 mm (50 in) of rainfall annually. Cotonou can be quite wet during June, receiving approximately 259 mm (10 in) of precipitation over 18 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 29 mm (1.1 in) of precipitation spread across a single rainy day days. For more details, please visit our Cotonou Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Cotonou can be enjoyed more throughout the sunniest month of November under a blue sky, with approximately 8.2 hours of sunshine daily. In contrast, the city experiences much darker days in July, with only 4.5 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The mean water temperature over the year ranges from 24°C (75°F) in August to 29°C (84°F) in April.

Water temperature over the year

The city experiences its highest humidity in June, reaching 88%. In March, the humidity drops to its lowest level at 80%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The mean wind speed over the year ranges from 3 m/s (6 knots) in December to 6 m/s (12 knots) in July and August. What does this mean?

The mean monthly wind speed over the year (meters per second)