Average annual temperature is 29.7 °C
Absolute maximum temperature: 42.6 °C
Absolute minimum temperature: 14.9 °C
Number of sunny days: 286 days
Number of rainy days: 79 days
Look at detailed online map of Boulli
* Weather data for Boulli Niger is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.1 | 39.0 | 40.5 | 42.3 | 42.6 | 41.2 | 38.9 | 34.4 | 39.3 | 40.0 | 38.6 | 38.0 |
| Average daytime temperature (°C) | 32.0 | 35.4 | 38.9 | 40.1 | 40.3 | 37.2 | 34.1 | 31.7 | 34.1 | 37.2 | 37.3 | 32.4 |
| Average temperature (°C) | 24.6 | 27.9 | 32.0 | 33.6 | 34.6 | 31.7 | 29.1 | 27.2 | 29.0 | 31.2 | 30.5 | 25.0 |
| Average night temperature (°C) | 18.1 | 21.4 | 25.6 | 27.2 | 28.7 | 26.9 | 25.0 | 23.8 | 24.7 | 25.0 | 23.8 | 18.5 |
| Absolute minimum temperature (°C) | 15.2 | 18.5 | 23.1 | 24.4 | 23.1 | 23.3 | 23.2 | 22.5 | 22.8 | 22.6 | 21.1 | 14.9 |
| 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) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| 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 | 10.3 | 10.0 | 10.4 | 10.2 | 10.4 | 10.2 | 9.2 | 10.2 | 10.5 | 10.5 | 10.1 |
| Precipitation (mm) | 0 | 0 | 0 | 2 | 5 | 35 | 67 | 138 | 60 | 5 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 29 | 18 | 12 | 7 | 15 | 25 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 1 | 2 | 12 | 19 | 24 | 15 | 6 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Boulli is at