Average annual temperature is 26.8 °C
Absolute maximum temperature: 39.2 °C
Absolute minimum temperature: 16.8 °C
Number of sunny days: 197 days
Number of rainy days: 168 days
Look at detailed online map of Birô
* Weather data for Birô 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) | 37.2 | 36.9 | 38.3 | 39.2 | 37.8 | 36.3 | 33.6 | 33.2 | 33.0 | 33.7 | 36.2 | 35.9 |
| Average daytime temperature (°C) | 34.0 | 35.9 | 35.9 | 36.9 | 35.3 | 32.8 | 30.2 | 30.2 | 31.2 | 32.0 | 33.6 | 33.7 |
| Average temperature (°C) | 25.5 | 26.9 | 27.2 | 28.8 | 28.9 | 27.7 | 25.8 | 25.7 | 26.1 | 26.6 | 27.0 | 25.5 |
| Average night temperature (°C) | 19.3 | 20.2 | 21.4 | 23.3 | 24.9 | 24.6 | 23.3 | 23.3 | 23.3 | 23.6 | 22.1 | 19.7 |
| Absolute minimum temperature (°C) | 17.2 | 18.6 | 18.9 | 22.0 | 22.2 | 23.6 | 22.0 | 22.2 | 22.2 | 22.7 | 18.0 | 16.8 |
| 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 | 11.8 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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) | 10.0 | 10.5 | 10.5 | 11.0 | 9.3 | 8.5 | 7.7 | 7.2 | 8.2 | 8.7 | 10.1 | 9.6 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 27 | 161 | 358 | 470 | 365 | 282 | 23 | 0 |
| Sunny days | 31 | 28 | 30 | 29 | 16 | 7 | 0 | 1 | 1 | 3 | 21 | 30 |
| Rainy days | 0 | 0 | 1 | 1 | 15 | 23 | 31 | 30 | 29 | 28 | 9 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Birô is at