Average annual temperature is 28.4 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: 16.2 °C
Number of sunny days: 236 days
Number of rainy days: 129 days
Look at detailed online map of Nianboulankoro
* Weather data for Nianboulankoro 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) | 36.9 | 38.9 | 40.9 | 41.1 | 40.8 | 36.9 | 35.4 | 31.8 | 34.3 | 36.6 | 36.7 | 36.2 |
| Average daytime temperature (°C) | 33.3 | 36.2 | 38.5 | 39.2 | 37.2 | 32.9 | 32.3 | 29.3 | 30.9 | 33.6 | 35.9 | 33.6 |
| Average temperature (°C) | 25.8 | 28.8 | 31.6 | 32.8 | 31.3 | 28.3 | 27.4 | 25.4 | 26.6 | 28.0 | 29.4 | 26.0 |
| Average night temperature (°C) | 19.4 | 22.3 | 25.1 | 26.8 | 26.3 | 24.3 | 23.8 | 22.7 | 23.0 | 23.2 | 23.1 | 19.5 |
| Absolute minimum temperature (°C) | 16.2 | 18.9 | 22.1 | 23.9 | 24.1 | 22.7 | 22.5 | 21.9 | 21.6 | 20.9 | 20.6 | 17.0 |
| 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 | 11.8 | 12.1 | 12.4 | 12.6 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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 | 9.7 | 10.0 | 9.9 | 10.1 | 8.9 | 7.8 | 8.8 | 10.0 | 10.6 | 10.4 |
| Precipitation (mm) | 0 | 0 | 18 | 1 | 51 | 90 | 154 | 235 | 100 | 50 | 3 | 0 |
| Sunny days | 31 | 28 | 28 | 26 | 16 | 7 | 6 | 3 | 10 | 23 | 27 | 31 |
| Rainy days | 0 | 0 | 3 | 4 | 15 | 23 | 25 | 28 | 20 | 8 | 3 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nianboulankoro is at