Cotonou, Benin Weather
Cotonou hourly forecast: next 24 hours
Today's high of 77°F (25°C) is about 3°F (2°C) below the typical July high of 80°F (27°C).
Current conditions in detail
Cotonou weather tomorrow (Saturday, July 18)
Tomorrow in Cotonou looks patchy rain nearby, with a high of 79° and an overnight low of 76°. There is a 71% chance of rain - plan accordingly. Winds top out near 13 mph, and the UV index reaches 7 (high).
Cotonou 14-day forecast
About the weather in Cotonou
Located in Benin, Cotonou experiences a tropical wet-and-dry climate with year-round warmth split between a rainy season and a pronounced dry season. Afternoon temperatures peak near 87°F (30°C) in March and dip to about 80°F (26°C) in August, with around 43.8 inches (1113 mm) of precipitation falling across the year.
Cotonou weather: quick facts
- Hottest month: March - highs near 87°F (30°C)
- Coldest month: August - highs near 80°F (26°C)
- Record high: 96°F (35°C) · Record low: 69°F (21°C) (2015–2024)
- Wettest month: June (25 rainy days) · Sunniest: December (10.5 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on March. Highs average 87°F (30°C) and overnight lows stay near 81°F (27°C). The coolest month is August, with typical highs of 80°F (26°C) and lows around 75°F (24°C). Based on 2015–2024 weather data, temperatures have reached as high as 96°F (35°C) and dropped as low as 69°F (21°C).
Rain, sun and snow
June is usually the wettest month. It brings about 8.6 inches (219 mm) of rain over 25 days, while December is the driest. December brings the most sunshine, averaging 10.5 hours of sun a day.
Season by season
March through May
March through May in Cotonou is hot, with daytime highs averaging 86°F (30°C) and nights around 80°F (27°C); expect showers on roughly 50 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
June through August
June through August in Cotonou runs hot, with daytime highs averaging 81°F (27°C) and nights around 76°F (25°C); expect showers on roughly 58 days across the season.
September through November
September through November in Cotonou is hot, with daytime highs averaging 83°F (28°C) and nights around 78°F (25°C); expect showers on roughly 65 days across the season.
December through February
December through February in Cotonou brings hot afternoons, with daytime highs averaging 87°F (30°C) and nights around 78°F (26°C); expect showers on roughly 21 days across the season.
Average temperatures in Cotonou by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 87° | 77° | 5 | 0.8 in | 10.3 h/day | 79% |
| February | 87° | 79° | 8 | 1.3 in | 10.4 h/day | 81% |
| March | 87° | 81° | 15 | 2.8 in | 9.8 h/day | 82% |
| April | 87° | 81° | 15 | 2.7 in | 9.9 h/day | 81% |
| May | 85° | 80° | 21 | 5.9 in | 9.7 h/day | 82% |
| June | 82° | 77° | 25 | 8.6 in | 8.3 h/day | 85% |
| July | 80° | 76° | 18 | 4.4 in | 9.4 h/day | 86% |
| August | 80° | 75° | 15 | 3.0 in | 9.6 h/day | 86% |
| September | 81° | 76° | 22 | 5.0 in | 8.9 h/day | 86% |
| October | 83° | 77° | 24 | 6.0 in | 9.3 h/day | 85% |
| November | 85° | 79° | 19 | 2.6 in | 10.4 h/day | 83% |
| December | 87° | 78° | 7 | 0.7 in | 10.5 h/day | 79% |