Average annual temperature is 26.8 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 16.8 °C
Number of sunny days: 198 days
Number of rainy days: 167 days
Look at detailed online map of Guiro Jau
* Weather data for Guiro Jau 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) | 36.6 | 36.9 | 38.0 | 38.9 | 38.0 | 36.3 | 33.4 | 33.1 | 33.0 | 33.5 | 36.0 | 36.2 |
| Average daytime temperature (°C) | 33.7 | 35.8 | 35.6 | 36.6 | 35.1 | 32.7 | 30.2 | 30.0 | 31.1 | 31.9 | 33.5 | 33.4 |
| Average temperature (°C) | 25.6 | 27.0 | 27.2 | 28.8 | 28.9 | 27.7 | 25.8 | 25.7 | 26.1 | 26.6 | 27.0 | 25.5 |
| Average night temperature (°C) | 19.5 | 20.6 | 21.6 | 23.4 | 25.1 | 24.7 | 23.3 | 23.3 | 23.4 | 23.6 | 22.1 | 19.8 |
| Absolute minimum temperature (°C) | 17.6 | 19.0 | 19.0 | 22.1 | 22.2 | 23.7 | 22.1 | 22.3 | 22.1 | 22.5 | 18.7 | 16.8 |
| 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 | 11.5 |
| 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 | 10.5 | 11.0 | 9.1 | 8.5 | 7.5 | 6.9 | 8.0 | 8.6 | 10.1 | 9.5 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 24 | 134 | 374 | 449 | 356 | 278 | 11 | 0 |
| Sunny days | 31 | 28 | 31 | 29 | 14 | 7 | 1 | 1 | 2 | 2 | 22 | 30 |
| Rainy days | 0 | 0 | 0 | 1 | 17 | 23 | 30 | 30 | 28 | 29 | 8 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Guiro Jau is at