Cotonou weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: December – February
What is the weather like in Cotonou in August?
In August, Cotonou is warm: daytime highs average 26 °C, and even at night it stays warm at around 24 °C. Expect around 5 hours of sunshine a day. It is the rainy season: rain falls on about 17 days, totalling 105 mm. The air is often humid and muggy. All in all, August is a so-so month for a holiday in Cotonou.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 55 | 59 | 57 |
| Day | 27° | 26° | 27° |
| Night | 24° | 24° | 24° |
| Sun | 5 h | 5 h | 5 h |
| Rain days | 21 | 17 | 22 |
More details for August
- Daylight
- 12 h 20 min06:45 – 19:05
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 81 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+1Africa/Porto-Novo
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %32 %
- Few rainy daysweight 30 %8 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Cotonou in August: quick answers
Is Cotonou hot in August?
Warm rather than hot: in August, daytime highs in Cotonou average 26 °C and nights cool to about 24 °C.
Does it rain much in Cotonou in August?
It rains often – on about 17 days, adding up to 105 mm.
Cotonou month by month
The whole year in CotonouAll destinations: BeninWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences