Cotonou Weather in September
What's the weather like in Cotonou (Littoral) in September 2024?
The climate in Cotonou during September can be summarized as hot, humid and damp.
September is in the fall / autumn in Cotonou and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 23°C (74°F) is normal.
| Daytime temperature | 28.6°C 83.5°F |
|---|---|
| Nightly temperature | 23.2°C 73.8°F |
| Average temperature | 25.9°C 78.6°F |
| Daily sunshine | 5.4 hrs |
| Avg rainfall | 112 mm 4.4 ins |
| Rainy days | 11 days |
| Sea temperature | 26.1°C 79°F |
| Humidity | 84% |
| Windspeed | 13kph 8 mph |
On average September is the 6th wettest month of the year in Cotonou with around 112mm 4.4 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.4 hours of sunshine per day.
September temperatures in Cotonou
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cotonou in September 2024.
Other monthly averages
Best places to visit in September
Cotonou weather stats
| Hottest month: | March | 32.1°C 89.8°F |
|---|---|---|
| Driest month: | January | 14mm 0.6ins |
| Sunniest month: | November | 8.3hrs |
| Coldest month: | July | 27.9°C 82.2°F |
| Wettest month: | June | 321mm 12.6ins |
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