Average annual temperature is 29.1 °C
Absolute maximum temperature: 43.8 °C
Absolute minimum temperature: 13.1 °C
Number of sunny days: 276 days
Number of rainy days: 89 days
Look at detailed online map of Biyou
* Weather data for Biyou 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) | 37.7 | 39.3 | 40.5 | 41.8 | 43.8 | 41.2 | 38.2 | 33.5 | 37.8 | 39.6 | 38.5 | 38.4 |
| Average daytime temperature (°C) | 32.8 | 36.2 | 39.0 | 39.9 | 40.3 | 36.9 | 33.6 | 30.9 | 32.9 | 36.6 | 37.1 | 33.1 |
| Average temperature (°C) | 24.3 | 27.7 | 31.3 | 32.9 | 34.1 | 31.2 | 28.6 | 26.6 | 28.0 | 30.2 | 29.6 | 24.6 |
| Average night temperature (°C) | 16.3 | 19.5 | 23.3 | 25.2 | 28.0 | 26.4 | 24.6 | 23.3 | 23.9 | 23.9 | 21.3 | 16.3 |
| Absolute minimum temperature (°C) | 13.5 | 16.8 | 19.7 | 21.5 | 25.2 | 23.3 | 22.6 | 21.8 | 22.1 | 22.1 | 18.1 | 13.1 |
| 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) | 11.4 | 11.7 | 12.1 | 12.4 | 12.7 | 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) | 10.4 | 10.7 | 10.2 | 10.5 | 10.4 | 9.6 | 9.5 | 9.1 | 10.3 | 10.2 | 10.3 | 10.1 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 4 | 65 | 140 | 216 | 93 | 3 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 26 | 13 | 10 | 8 | 12 | 26 | 30 | 31 |
| Rainy days | 0 | 0 | 0 | 0 | 5 | 17 | 21 | 23 | 18 | 5 | 0 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Biyou is at