Climate averages 1991–2020
Cotonou weather
in June.
A warm, very wet month: the 9th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Cotonou: daytime highs average 27.5°C and nights cool to about 24.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 259 mm of rain on roughly 26 days, which makes June a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average June day.
The nearest other city in this atlas is Godomè (8 km away). In June its highs average 27.7°C, about as warm as Cotonou, with 215 mm of rain.
Among the 8 cities listed in Benin, Cotonou ranks 8th of 8 for the warmest June highs and 8th of 8 for the driest June (rainfall, lowest first). The mean June high of those 8 cities is 28.7°C; Cotonou is 1.2°C cooler than that mean.
From June to July, average highs fall by 1.0°C to 26.4°C, and monthly rainfall falls from 259 mm to 132 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cotonou climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C25.3°C | 25.3°C | 21 | 6.5 | 11.812 h |
| February | 29.9°C26.1°C | 26.1°C | 27 | 7.9 | 11.912 h |
| March | 30.1°C26.7°C | 26.7°C | 48 | 12.5 | 12.112 h |
| April | 29.8°C26.6°C | 26.6°C | 73 | 15.7 | 12.312 h |
| May | 29.0°C25.9°C | 25.9°C | 164 | 23.3 | 12.412 h |
| June, selected | 27.5°C24.7°C | 24.7°C | 259 | 26.1 | 12.512 h |
| July | 26.4°C24.0°C | 24.0°C | 132 | 18.9 | 12.512 h |
| August | 26.1°C23.6°C | 23.6°C | 73 | 13.3 | 12.312 h |
| September | 26.7°C24.0°C | 24.0°C | 104 | 18.0 | 12.212 h |
| October | 27.8°C24.7°C | 24.7°C | 110 | 20.2 | 12.012 h |
| November | 28.8°C25.7°C | 25.7°C | 49 | 13.8 | 11.812 h |
| December | 29.3°C25.6°C | 25.6°C | 27 | 7.6 | 11.812 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Godomè in JuneBenin · 8 kmHigh 27.7°C · Low 24.6°C · 215 mm rain
- Ekpé in JuneBenin · 13 kmHigh 27.7°C · Low 24.5°C · 229 mm rain
- Porto-Novo in JuneBenin · 25 kmHigh 28.0°C · Low 24.1°C · 229 mm rain
- Irewe in JuneNigeria · 80 kmHigh 27.6°C · Low 24.5°C · 270 mm rain
- Alasia in JuneNigeria · 84 kmHigh 27.6°C · Low 24.0°C · 270 mm rain
- Ota in JuneNigeria · 97 kmHigh 28.2°C · Low 23.3°C · 243 mm rain
- Bohicon in JuneBenin · 98 kmHigh 29.4°C · Low 23.1°C · 153 mm rain
- Ifo in JuneNigeria · 99 kmHigh 28.5°C · Low 23.1°C · 243 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cotonou) is explained once on the Cotonou year overview and on the Sources, method and limits page.