Average annual temperature is 29.0 °C
Absolute maximum temperature: 43.7 °C
Absolute minimum temperature: 14.0 °C
Number of sunny days: 238 days
Number of rainy days: 127 days
Look at detailed online map of Siéna
* Weather data for Siéna 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) | 38.4 | 40.1 | 41.4 | 42.3 | 43.7 | 40.6 | 35.3 | 32.9 | 34.7 | 38.3 | 38.5 | 37.9 |
| Average daytime temperature (°C) | 34.1 | 37.4 | 39.6 | 40.1 | 39.7 | 35.6 | 32.5 | 30.4 | 31.7 | 35.2 | 36.8 | 34.0 |
| Average temperature (°C) | 25.8 | 28.9 | 31.7 | 33.1 | 33.3 | 30.0 | 27.7 | 26.0 | 26.9 | 29.2 | 29.5 | 25.7 |
| Average night temperature (°C) | 17.9 | 21.1 | 23.4 | 25.3 | 27.6 | 25.5 | 23.9 | 22.9 | 23.3 | 23.8 | 22.3 | 18.3 |
| Absolute minimum temperature (°C) | 15.1 | 18.4 | 19.1 | 22.1 | 25.6 | 23.1 | 22.2 | 21.5 | 22.1 | 22.4 | 18.4 | 14.0 |
| 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 | 11.7 | 12.1 | 12.4 | 12.7 | 12.9 | 12.8 | 12.5 | 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 | 10.8 | 10.5 | 10.4 | 9.9 | 9.9 | 9.6 | 8.7 | 9.7 | 10.0 | 10.1 | 10.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 11 | 121 | 166 | 316 | 133 | 21 | 1 | 0 |
| Sunny days | 31 | 28 | 30 | 28 | 19 | 9 | 8 | 1 | 6 | 18 | 29 | 31 |
| Rainy days | 0 | 0 | 1 | 2 | 12 | 21 | 23 | 30 | 24 | 13 | 1 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siéna is at