Average annual temperature is 28.3 °C
Absolute maximum temperature: 42.0 °C
Absolute minimum temperature: 17.9 °C
Number of sunny days: 227 days
Number of rainy days: 138 days
Look at detailed online map of Biou
* Weather data for Biou Cameroon is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 38.7 | 39.4 | 41.2 | 42.0 | 41.9 | 36.9 | 33.4 | 32.7 | 33.4 | 36.2 | 37.2 | 36.8 |
| Average daytime temperature (°C) | 34.3 | 35.9 | 38.4 | 39.4 | 37.5 | 31.8 | 30.8 | 29.9 | 30.5 | 33.4 | 35.0 | 34.3 |
| Average temperature (°C) | 26.8 | 28.7 | 31.4 | 32.9 | 31.6 | 27.0 | 26.7 | 25.7 | 25.9 | 27.6 | 28.4 | 27.1 |
| Average night temperature (°C) | 20.2 | 22.3 | 25.1 | 26.9 | 26.4 | 23.5 | 23.2 | 22.4 | 22.3 | 22.6 | 22.5 | 20.7 |
| Absolute minimum temperature (°C) | 17.9 | 18.3 | 22.0 | 21.6 | 24.0 | 21.2 | 21.7 | 20.9 | 19.9 | 18.8 | 18.8 | 18.5 |
| 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) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 10.5 | 10.8 | 9.9 | 9.9 | 10.4 | 8.7 | 9.6 | 8.1 | 8.9 | 10.3 | 9.7 | 10.2 |
| Precipitation (mm) | 0 | 0 | 5 | 32 | 39 | 148 | 102 | 177 | 75 | 34 | 9 | 0 |
| Sunny days | 31 | 28 | 28 | 25 | 19 | 6 | 6 | 3 | 8 | 18 | 24 | 31 |
| Rainy days | 0 | 0 | 3 | 5 | 12 | 24 | 25 | 28 | 22 | 13 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Biou is at