Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 220 days
Number of rainy days: 145 days
Look at detailed online map of Caió
* Weather data for Caió 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) | 37.5 | 37.0 | 37.4 | 39.0 | 34.1 | 31.7 | 30.6 | 30.4 | 31.5 | 32.9 | 37.3 | 37.7 |
| Average daytime temperature (°C) | 32.1 | 33.3 | 30.2 | 31.7 | 30.7 | 30.3 | 28.8 | 28.5 | 29.7 | 30.7 | 33.5 | 34.1 |
| Average temperature (°C) | 25.4 | 26.0 | 25.7 | 26.8 | 27.5 | 28.1 | 26.9 | 26.5 | 27.1 | 27.8 | 28.5 | 27.1 |
| Average night temperature (°C) | 20.7 | 21.9 | 22.8 | 23.8 | 25.3 | 26.5 | 25.1 | 24.9 | 24.9 | 25.5 | 24.3 | 21.7 |
| Absolute minimum temperature (°C) | 18.9 | 20.6 | 21.0 | 22.5 | 23.2 | 25.1 | 23.3 | 23.4 | 22.6 | 23.1 | 20.2 | 18.3 |
| 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 | 11.8 | 12.1 | 12.4 | 12.7 | 12.8 | 12.7 | 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 | 10.8 | 10.9 | 11.2 | 10.1 | 9.3 | 8.5 | 7.4 | 8.9 | 9.4 | 10.2 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1 | 39 | 363 | 408 | 287 | 175 | 3 | 0 |
| Sunny days | 30 | 28 | 31 | 30 | 28 | 12 | 1 | 0 | 0 | 5 | 24 | 31 |
| Rainy days | 1 | 0 | 0 | 0 | 3 | 18 | 30 | 31 | 30 | 26 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Caió is at