Average annual temperature is 27.3 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 17.0 °C
Number of sunny days: 222 days
Number of rainy days: 143 days
Look at detailed online map of Cassà
* Weather data for Cassà 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) | 37.7 | 39.6 | 40.4 | 40.3 | 40.1 | 37.9 | 33.4 | 32.0 | 33.0 | 34.1 | 35.1 | 35.4 |
| Average daytime temperature (°C) | 33.1 | 36.5 | 36.6 | 37.3 | 36.3 | 33.5 | 30.4 | 29.8 | 31.0 | 32.0 | 33.2 | 33.3 |
| Average temperature (°C) | 25.3 | 27.7 | 27.6 | 29.2 | 29.4 | 28.6 | 26.8 | 26.3 | 26.9 | 27.5 | 27.0 | 25.8 |
| Average night temperature (°C) | 19.6 | 21.4 | 21.5 | 23.4 | 25.0 | 25.6 | 24.4 | 24.2 | 24.3 | 24.6 | 22.1 | 20.1 |
| Absolute minimum temperature (°C) | 17.0 | 19.9 | 20.0 | 21.1 | 22.1 | 24.2 | 23.3 | 23.1 | 22.4 | 23.5 | 18.0 | 17.5 |
| 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) | 9.9 | 10.7 | 10.8 | 11.0 | 9.9 | 9.2 | 7.8 | 6.8 | 8.0 | 8.8 | 10.2 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 2 | 77 | 290 | 420 | 242 | 124 | 9 | 0 |
| Sunny days | 30 | 28 | 31 | 30 | 26 | 10 | 0 | 1 | 1 | 8 | 26 | 31 |
| Rainy days | 1 | 0 | 0 | 0 | 5 | 20 | 31 | 30 | 29 | 23 | 4 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cassà is at