Average annual temperature is 27.4 °C
Absolute maximum temperature: 40.9 °C
Absolute minimum temperature: 16.8 °C
Number of sunny days: 199 days
Number of rainy days: 166 days
Look at detailed online map of Umbaná
* Weather data for Umbaná 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) | 38.9 | 39.8 | 40.2 | 40.9 | 37.8 | 36.8 | 33.1 | 33.0 | 32.8 | 33.5 | 36.1 | 36.5 |
| Average daytime temperature (°C) | 34.7 | 37.8 | 37.1 | 37.6 | 35.3 | 32.6 | 30.2 | 29.9 | 31.0 | 31.7 | 33.6 | 33.8 |
| Average temperature (°C) | 26.3 | 28.6 | 28.3 | 29.6 | 29.4 | 28.1 | 26.2 | 26.0 | 26.4 | 26.9 | 27.4 | 25.9 |
| Average night temperature (°C) | 20.3 | 21.9 | 22.5 | 24.3 | 25.7 | 25.3 | 23.6 | 23.8 | 23.7 | 23.9 | 22.6 | 20.1 |
| Absolute minimum temperature (°C) | 18.1 | 20.1 | 20.8 | 22.9 | 23.0 | 24.1 | 22.3 | 22.4 | 22.8 | 22.8 | 18.9 | 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) | 9.8 | 10.4 | 10.6 | 11.0 | 9.1 | 8.7 | 7.7 | 6.7 | 8.1 | 8.6 | 10.0 | 9.5 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 24 | 133 | 443 | 460 | 345 | 258 | 20 | 0 |
| Sunny days | 31 | 28 | 29 | 28 | 20 | 8 | 0 | 1 | 1 | 2 | 21 | 30 |
| Rainy days | 0 | 0 | 2 | 2 | 11 | 22 | 31 | 30 | 29 | 29 | 9 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Umbaná is at