Average annual temperature is 28.5 °C
Absolute maximum temperature: 43.1 °C
Absolute minimum temperature: 10.4 °C
Number of sunny days: 253 days
Number of rainy days: 112 days
Look at detailed online map of Siéwali
* Weather data for Siéwali Burkina Faso is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.6 | 39.3 | 41.0 | 41.5 | 43.1 | 41.2 | 35.1 | 34.0 | 35.3 | 38.4 | 37.4 | 37.4 |
| Average daytime temperature (°C) | 32.9 | 36.4 | 38.9 | 39.6 | 39.8 | 36.1 | 32.2 | 30.7 | 31.9 | 35.1 | 36.2 | 32.8 |
| Average temperature (°C) | 24.5 | 27.6 | 30.9 | 32.3 | 33.6 | 30.5 | 27.5 | 26.2 | 26.9 | 28.9 | 28.6 | 24.6 |
| Average night temperature (°C) | 16.7 | 19.1 | 22.4 | 24.2 | 27.6 | 25.7 | 23.8 | 23.1 | 23.1 | 23.5 | 21.4 | 17.1 |
| Absolute minimum temperature (°C) | 10.4 | 16.1 | 19.4 | 20.3 | 24.7 | 23.4 | 22.5 | 21.9 | 21.7 | 20.5 | 17.7 | 12.3 |
| 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 | 12.7 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 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) | 10.6 | 10.7 | 10.3 | 10.0 | 9.8 | 10.2 | 9.2 | 8.6 | 9.4 | 10.0 | 10.1 | 10.2 |
| Precipitation (mm) | 0 | 0 | 1 | 0 | 2 | 109 | 164 | 344 | 114 | 9 | 0 | 0 |
| Sunny days | 31 | 28 | 30 | 28 | 28 | 10 | 10 | 3 | 6 | 18 | 30 | 31 |
| Rainy days | 0 | 0 | 1 | 2 | 3 | 20 | 21 | 28 | 24 | 13 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siéwali is at