Average annual temperature is 26.9 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: 16.3 °C
Number of sunny days: 221 days
Number of rainy days: 144 days
Look at detailed online map of Biacha
* Weather data for Biacha Guinea-Bissau is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.9 | 39.3 | 40.3 | 40.1 | 39.9 | 37.6 | 32.6 | 31.9 | 33.6 | 34.1 | 35.7 | 35.7 |
| Average daytime temperature (°C) | 32.5 | 36.1 | 36.1 | 36.9 | 36.1 | 33.2 | 30.0 | 29.7 | 30.9 | 32.0 | 33.9 | 33.6 |
| Average temperature (°C) | 24.5 | 26.9 | 26.7 | 28.2 | 28.8 | 28.3 | 26.5 | 26.1 | 26.7 | 27.4 | 27.2 | 25.6 |
| Average night temperature (°C) | 18.9 | 20.5 | 20.5 | 22.4 | 24.2 | 25.1 | 24.2 | 23.9 | 24.0 | 24.4 | 22.1 | 19.9 |
| Absolute minimum temperature (°C) | 16.3 | 18.9 | 18.5 | 20.3 | 21.3 | 23.7 | 23.0 | 22.1 | 22.7 | 23.1 | 18.6 | 16.9 |
| 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) | 11.5 | 11.7 | 12.1 | 12.4 | 12.7 | 12.8 | 12.8 | 12.5 | 12.2 | 11.9 | 11.6 | 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) | 9.8 | 10.7 | 10.8 | 11.1 | 10.1 | 9.0 | 7.9 | 6.5 | 7.9 | 9.0 | 10.2 | 9.7 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 7 | 95 | 343 | 450 | 303 | 133 | 8 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 27 | 11 | 0 | 2 | 0 | 6 | 24 | 31 |
| Rainy days | 0 | 0 | 0 | 0 | 4 | 19 | 31 | 29 | 30 | 25 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Biacha is at