Average annual temperature is 26.9 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: 19.3 °C
Number of sunny days: 195 days
Number of rainy days: 170 days
Look at detailed online map of Cassatiá
* Weather data for Cassatiá 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) | 36.3 | 37.7 | 37.8 | 37.8 | 32.5 | 31.3 | 30.8 | 30.1 | 31.2 | 32.5 | 34.9 | 36.5 |
| Average daytime temperature (°C) | 32.3 | 32.9 | 30.2 | 31.1 | 30.9 | 29.7 | 28.2 | 28.2 | 29.3 | 30.1 | 31.7 | 32.6 |
| Average temperature (°C) | 25.7 | 26.5 | 26.2 | 27.4 | 28.1 | 27.7 | 26.3 | 26.1 | 26.6 | 27.0 | 28.2 | 26.9 |
| Average night temperature (°C) | 21.3 | 22.2 | 23.3 | 24.8 | 26.1 | 26.0 | 24.5 | 24.4 | 24.5 | 24.8 | 25.4 | 22.8 |
| Absolute minimum temperature (°C) | 19.8 | 20.0 | 21.5 | 22.7 | 24.1 | 23.8 | 23.3 | 22.6 | 23.4 | 23.3 | 23.6 | 19.3 |
| 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) | 11.6 | 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) | 10.0 | 10.5 | 10.6 | 11.0 | 9.2 | 8.9 | 7.9 | 7.5 | 8.3 | 9.0 | 10.2 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 35 | 147 | 483 | 557 | 325 | 232 | 19 | 0 |
| Sunny days | 31 | 28 | 30 | 30 | 19 | 7 | 0 | 0 | 1 | 0 | 19 | 30 |
| Rainy days | 0 | 0 | 1 | 0 | 12 | 23 | 31 | 31 | 29 | 31 | 11 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cassatiá is at