Average annual temperature is 27.7 °C
Absolute maximum temperature: 40.7 °C
Absolute minimum temperature: 15.7 °C
Number of sunny days: 220 days
Number of rainy days: 145 days
Look at detailed online map of Sinchã Iáià
* Weather data for Sinchã Iáià 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 | 39.2 | 40.5 | 40.7 | 40.6 | 39.2 | 33.6 | 33.1 | 32.6 | 33.1 | 34.8 | 34.9 |
| Average daytime temperature (°C) | 33.6 | 36.9 | 38.0 | 38.8 | 37.9 | 34.3 | 31.2 | 30.4 | 30.8 | 31.7 | 32.9 | 32.5 |
| Average temperature (°C) | 25.8 | 28.6 | 29.6 | 31.2 | 31.3 | 28.9 | 26.6 | 26.1 | 26.3 | 27.0 | 26.3 | 24.8 |
| Average night temperature (°C) | 19.0 | 20.9 | 21.7 | 24.3 | 26.1 | 25.1 | 23.7 | 23.5 | 23.4 | 23.6 | 20.4 | 18.3 |
| Absolute minimum temperature (°C) | 15.8 | 18.1 | 19.0 | 22.2 | 22.8 | 23.7 | 22.6 | 22.3 | 22.4 | 22.2 | 16.1 | 15.7 |
| 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) | 10.0 | 10.3 | 10.5 | 10.7 | 9.5 | 8.8 | 8.0 | 7.0 | 8.2 | 9.2 | 10.2 | 9.9 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 10 | 111 | 224 | 400 | 355 | 190 | 5 | 1 |
| Sunny days | 31 | 28 | 31 | 29 | 20 | 10 | 1 | 2 | 1 | 9 | 28 | 30 |
| Rainy days | 0 | 0 | 0 | 1 | 11 | 20 | 30 | 29 | 29 | 22 | 2 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sinchã Iáià is at