Average annual temperature is 27.1 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 19.7 °C
Number of sunny days: 116 days
Number of rainy days: 249 days
Look at detailed online map of Onhoun
* Weather data for Onhoun Benin is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.7 | 38.5 | 37.9 | 36.4 | 35.6 | 34.6 | 31.7 | 31.7 | 32.7 | 33.9 | 34.6 | 36.8 |
| Average daytime temperature (°C) | 35.8 | 37.1 | 35.0 | 33.9 | 33.4 | 31.0 | 29.9 | 30.0 | 30.2 | 31.6 | 33.2 | 35.2 |
| Average temperature (°C) | 28.2 | 29.4 | 28.3 | 28.0 | 27.7 | 25.8 | 25.2 | 25.2 | 25.3 | 26.3 | 27.5 | 28.1 |
| Average night temperature (°C) | 22.6 | 23.8 | 24.1 | 24.4 | 24.4 | 23.0 | 22.7 | 22.6 | 22.6 | 23.3 | 23.7 | 22.4 |
| Absolute minimum temperature (°C) | 19.7 | 22.3 | 22.2 | 23.1 | 23.2 | 21.8 | 21.9 | 21.6 | 21.6 | 21.7 | 21.7 | 20.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.5 | 12.5 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.6 | 10.0 | 8.2 | 8.4 | 8.9 | 7.6 | 7.7 | 7.5 | 7.3 | 8.3 | 9.7 | 10.2 |
| Precipitation (mm) | 2 | 9 | 129 | 95 | 125 | 207 | 235 | 179 | 202 | 89 | 22 | 0 |
| Sunny days | 26 | 23 | 8 | 6 | 0 | 3 | 0 | 0 | 1 | 2 | 17 | 30 |
| Rainy days | 5 | 5 | 23 | 24 | 31 | 27 | 31 | 31 | 29 | 29 | 13 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Onhoun is at