Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 20.1 °C
Number of sunny days: 104 days
Number of rainy days: 261 days
Look at detailed online map of Siwé
* Weather data for Siwé 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) | 37.3 | 39.0 | 38.0 | 36.0 | 35.6 | 34.5 | 31.5 | 31.3 | 32.0 | 33.8 | 35.4 | 37.3 |
| Average daytime temperature (°C) | 35.7 | 37.3 | 34.8 | 33.6 | 33.2 | 30.5 | 29.8 | 29.6 | 29.9 | 31.3 | 33.3 | 35.7 |
| Average temperature (°C) | 28.2 | 29.3 | 28.2 | 27.9 | 27.5 | 25.7 | 25.2 | 25.1 | 25.1 | 26.2 | 27.4 | 28.3 |
| Average night temperature (°C) | 22.8 | 24.1 | 24.2 | 24.4 | 24.3 | 22.9 | 22.5 | 22.5 | 22.4 | 23.1 | 23.6 | 22.7 |
| Absolute minimum temperature (°C) | 20.1 | 21.4 | 22.3 | 23.2 | 23.1 | 21.8 | 21.9 | 21.6 | 20.8 | 21.5 | 21.9 | 20.8 |
| 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 | 12.4 | 12.5 | 12.5 | 12.3 | 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 | 9.9 | 8.3 | 8.1 | 8.8 | 7.7 | 8.2 | 7.6 | 7.1 | 8.5 | 9.7 | 10.2 |
| Precipitation (mm) | 2 | 15 | 97 | 71 | 95 | 175 | 190 | 197 | 203 | 87 | 31 | 1 |
| Sunny days | 26 | 17 | 7 | 5 | 1 | 3 | 0 | 0 | 1 | 2 | 13 | 29 |
| Rainy days | 5 | 11 | 24 | 25 | 30 | 27 | 31 | 31 | 29 | 29 | 17 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siwé is at