Average annual temperature is 26.9 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 197 days
Number of rainy days: 168 days
Look at detailed online map of Cassacá
* Weather data for Cassacá 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) | 37.0 | 38.1 | 38.2 | 37.9 | 35.8 | 33.2 | 32.3 | 32.0 | 32.7 | 33.0 | 36.2 | 37.5 |
| Average daytime temperature (°C) | 33.6 | 35.2 | 33.1 | 33.8 | 32.8 | 31.0 | 29.0 | 29.1 | 30.3 | 31.2 | 33.2 | 34.5 |
| Average temperature (°C) | 25.6 | 26.7 | 26.6 | 27.9 | 28.4 | 27.7 | 26.0 | 25.8 | 26.3 | 26.7 | 27.9 | 26.7 |
| Average night temperature (°C) | 20.3 | 21.2 | 22.4 | 24.0 | 25.5 | 25.5 | 23.7 | 23.6 | 23.9 | 24.1 | 24.1 | 21.5 |
| Absolute minimum temperature (°C) | 18.0 | 18.5 | 21.0 | 23.0 | 22.5 | 23.5 | 22.3 | 22.5 | 22.4 | 23.0 | 21.8 | 18.0 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 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) | 9.9 | 10.4 | 10.6 | 11.0 | 9.2 | 8.7 | 7.4 | 7.2 | 8.2 | 8.7 | 10.2 | 9.7 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 33 | 151 | 524 | 528 | 392 | 262 | 28 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 20 | 6 | 0 | 2 | 1 | 0 | 19 | 30 |
| Rainy days | 0 | 0 | 0 | 1 | 11 | 24 | 31 | 29 | 29 | 31 | 11 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cassacá is at