Average annual temperature is 27.5 °C
Absolute maximum temperature: 40.7 °C
Absolute minimum temperature: 15.2 °C
Number of sunny days: 226 days
Number of rainy days: 139 days
Look at detailed online map of Bissâmal
* Weather data for Bissâmal 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) | 37.3 | 39.0 | 40.4 | 40.7 | 40.7 | 39.1 | 33.7 | 33.1 | 33.1 | 33.7 | 35.2 | 34.3 |
| Average daytime temperature (°C) | 33.2 | 37.1 | 37.9 | 38.8 | 37.6 | 34.2 | 31.0 | 30.5 | 31.1 | 32.1 | 33.2 | 32.2 |
| Average temperature (°C) | 25.1 | 28.2 | 29.3 | 30.9 | 31.0 | 28.8 | 26.6 | 26.0 | 26.4 | 27.1 | 26.2 | 24.3 |
| Average night temperature (°C) | 18.6 | 20.5 | 21.6 | 24.1 | 25.9 | 25.0 | 23.8 | 23.4 | 23.4 | 23.6 | 20.2 | 17.9 |
| Absolute minimum temperature (°C) | 15.7 | 17.8 | 19.7 | 21.4 | 22.8 | 24.0 | 22.8 | 22.3 | 22.6 | 22.4 | 16.4 | 15.2 |
| 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) | 10.0 | 10.5 | 10.5 | 10.8 | 9.2 | 9.0 | 7.5 | 6.8 | 8.0 | 9.0 | 10.1 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 4 | 104 | 251 | 356 | 328 | 175 | 1 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 27 | 10 | 1 | 2 | 1 | 8 | 27 | 30 |
| Rainy days | 0 | 0 | 0 | 0 | 4 | 20 | 30 | 29 | 29 | 23 | 3 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bissâmal is at