Average annual temperature is 27.0 °C
Absolute maximum temperature: 39.9 °C
Absolute minimum temperature: 17.3 °C
Number of sunny days: 223 days
Number of rainy days: 142 days
Look at detailed online map of Piana
* Weather data for Piana 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) | 36.2 | 38.6 | 39.9 | 39.8 | 37.0 | 34.4 | 32.2 | 31.0 | 32.1 | 33.2 | 34.4 | 34.7 |
| Average daytime temperature (°C) | 32.5 | 34.7 | 32.8 | 34.4 | 33.1 | 31.7 | 29.3 | 28.8 | 29.8 | 30.7 | 32.2 | 32.5 |
| Average temperature (°C) | 25.5 | 27.3 | 26.8 | 28.5 | 28.6 | 28.2 | 26.7 | 26.2 | 26.7 | 27.3 | 26.9 | 25.7 |
| Average night temperature (°C) | 20.2 | 21.7 | 21.8 | 23.9 | 25.4 | 25.9 | 24.6 | 24.4 | 24.6 | 24.9 | 22.4 | 20.4 |
| Absolute minimum temperature (°C) | 17.8 | 20.0 | 20.3 | 21.5 | 23.1 | 24.5 | 23.3 | 23.5 | 23.3 | 23.7 | 17.9 | 17.3 |
| 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) | 10.1 | 10.7 | 10.8 | 11.0 | 9.7 | 9.4 | 8.3 | 7.5 | 8.5 | 8.9 | 10.2 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1 | 61 | 288 | 406 | 255 | 135 | 10 | 0 |
| Sunny days | 30 | 28 | 31 | 30 | 28 | 13 | 0 | 1 | 1 | 6 | 24 | 31 |
| Rainy days | 1 | 0 | 0 | 0 | 3 | 17 | 31 | 30 | 29 | 25 | 6 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Piana is at