Average annual temperature is 28.0 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: 16.3 °C
Number of sunny days: 229 days
Number of rainy days: 136 days
Look at detailed online map of Bissilão
* Weather data for Bissilão 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) | 38.4 | 39.8 | 41.2 | 41.6 | 40.9 | 38.9 | 33.9 | 33.7 | 33.2 | 33.7 | 36.1 | 34.9 |
| Average daytime temperature (°C) | 33.8 | 37.9 | 38.9 | 39.5 | 38.3 | 34.5 | 31.3 | 30.6 | 31.4 | 32.2 | 33.6 | 32.9 |
| Average temperature (°C) | 25.9 | 29.4 | 29.8 | 31.4 | 31.1 | 29.0 | 26.9 | 26.2 | 26.7 | 27.3 | 26.8 | 25.2 |
| Average night temperature (°C) | 19.5 | 22.0 | 21.9 | 24.5 | 25.8 | 25.2 | 24.1 | 23.6 | 23.7 | 23.9 | 21.0 | 19.0 |
| Absolute minimum temperature (°C) | 17.2 | 19.3 | 20.1 | 21.7 | 22.0 | 23.9 | 23.1 | 22.6 | 22.4 | 22.8 | 17.3 | 16.3 |
| 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 | 10.7 | 10.9 | 9.8 | 9.2 | 8.1 | 6.8 | 8.2 | 9.2 | 10.1 | 9.9 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 9 | 110 | 205 | 311 | 296 | 174 | 0 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 25 | 10 | 1 | 1 | 3 | 9 | 29 | 31 |
| Rainy days | 0 | 0 | 0 | 0 | 6 | 20 | 30 | 30 | 27 | 22 | 1 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bissilão is at