Average annual temperature is 26.4 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 15.3 °C
Number of sunny days: 192 days
Number of rainy days: 173 days
Look at detailed online map of Sonoumon
* Weather data for Sonoumon 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) | 35.8 | 37.2 | 38.7 | 38.5 | 37.3 | 35.0 | 32.9 | 32.4 | 35.3 | 36.3 | 35.6 | 36.0 |
| Average daytime temperature (°C) | 33.2 | 34.9 | 36.4 | 36.2 | 34.7 | 31.6 | 31.2 | 29.7 | 31.1 | 33.4 | 34.8 | 33.9 |
| Average temperature (°C) | 24.5 | 26.6 | 28.6 | 28.9 | 27.9 | 25.8 | 25.4 | 24.6 | 25.3 | 26.4 | 27.2 | 25.2 |
| Average night temperature (°C) | 17.8 | 19.8 | 22.8 | 23.8 | 23.5 | 22.3 | 22.0 | 21.6 | 21.6 | 21.8 | 21.2 | 18.4 |
| Absolute minimum temperature (°C) | 15.3 | 17.8 | 18.7 | 22.8 | 22.3 | 21.4 | 21.5 | 21.0 | 20.4 | 20.7 | 18.7 | 16.4 |
| 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) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 10.1 | 9.9 | 9.1 | 9.5 | 9.6 | 8.1 | 8.1 | 7.3 | 8.4 | 9.4 | 10.5 | 10.5 |
| Precipitation (mm) | 0 | 0 | 33 | 26 | 63 | 125 | 161 | 291 | 104 | 74 | 11 | 0 |
| Sunny days | 31 | 28 | 24 | 23 | 9 | 2 | 2 | 1 | 2 | 15 | 24 | 31 |
| Rainy days | 0 | 0 | 7 | 7 | 22 | 28 | 29 | 30 | 28 | 16 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sonoumon is at