Average annual temperature is 29.1 °C
Absolute maximum temperature: 42.6 °C
Absolute minimum temperature: 15.1 °C
Number of sunny days: 250 days
Number of rainy days: 115 days
Look at detailed online map of Mamassi
* Weather data for Mamassi 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 | 39.8 | 41.5 | 42.2 | 42.6 | 38.6 | 35.7 | 33.5 | 36.1 | 38.3 | 37.8 | 37.1 |
| Average daytime temperature (°C) | 33.3 | 36.4 | 39.4 | 40.4 | 39.3 | 35.2 | 33.0 | 30.4 | 32.3 | 34.9 | 36.5 | 33.2 |
| Average temperature (°C) | 25.2 | 28.2 | 32.1 | 34.0 | 33.6 | 30.2 | 28.4 | 26.5 | 27.7 | 28.8 | 29.1 | 24.9 |
| Average night temperature (°C) | 18.5 | 21.0 | 25.2 | 28.0 | 28.4 | 25.9 | 24.8 | 23.5 | 24.1 | 23.4 | 22.5 | 17.8 |
| Absolute minimum temperature (°C) | 15.7 | 18.6 | 20.2 | 24.5 | 25.0 | 23.4 | 23.7 | 21.8 | 22.7 | 20.6 | 20.5 | 15.1 |
| 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) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.8 | 12.8 | 12.5 | 12.2 | 11.9 | 11.6 | 11.4 |
| 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 | 10.2 | 9.6 | 10.0 | 9.9 | 10.2 | 9.8 | 8.1 | 8.9 | 10.3 | 10.6 | 10.4 |
| Precipitation (mm) | 0 | 0 | 6 | 3 | 26 | 82 | 65 | 224 | 92 | 13 | 2 | 0 |
| Sunny days | 31 | 28 | 27 | 27 | 21 | 11 | 11 | 4 | 7 | 25 | 27 | 31 |
| Rainy days | 0 | 0 | 4 | 3 | 10 | 19 | 20 | 27 | 23 | 6 | 3 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mamassi is at