Average annual temperature is 27.2 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 134 days
Number of rainy days: 231 days
Look at detailed online map of Dassa I
* Weather data for Dassa I 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) | 38.3 | 39.6 | 39.1 | 38.0 | 36.4 | 34.7 | 33.1 | 32.5 | 33.5 | 34.9 | 35.0 | 36.5 |
| Average daytime temperature (°C) | 36.4 | 37.9 | 36.1 | 34.9 | 34.1 | 31.2 | 30.7 | 30.5 | 30.9 | 32.4 | 34.0 | 35.2 |
| Average temperature (°C) | 28.2 | 29.9 | 28.6 | 28.2 | 27.8 | 25.8 | 25.6 | 25.4 | 25.5 | 26.5 | 27.8 | 27.3 |
| Average night temperature (°C) | 21.2 | 23.2 | 23.8 | 24.2 | 24.1 | 22.8 | 22.7 | 22.6 | 22.5 | 23.1 | 23.3 | 20.7 |
| Absolute minimum temperature (°C) | 18.1 | 20.7 | 21.9 | 23.1 | 22.9 | 21.6 | 21.9 | 21.7 | 21.1 | 22.2 | 21.7 | 18.4 |
| 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) | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 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) | 9.7 | 10.0 | 8.2 | 7.9 | 8.8 | 7.2 | 7.4 | 7.0 | 7.5 | 8.4 | 10.0 | 10.3 |
| Precipitation (mm) | 3 | 0 | 109 | 86 | 118 | 201 | 162 | 178 | 160 | 107 | 8 | 1 |
| Sunny days | 28 | 26 | 11 | 9 | 3 | 2 | 0 | 0 | 2 | 5 | 18 | 30 |
| Rainy days | 3 | 2 | 20 | 21 | 28 | 28 | 31 | 31 | 28 | 26 | 12 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Dassa I is at