Average annual temperature is 27.3 °C
Absolute maximum temperature: 41.1 °C
Absolute minimum temperature: 16.5 °C
Number of sunny days: 221 days
Number of rainy days: 144 days
Look at detailed online map of Mantem
* Weather data for Mantem 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) | 38.0 | 39.0 | 40.2 | 41.1 | 40.3 | 39.1 | 33.1 | 32.9 | 33.7 | 34.2 | 35.9 | 35.5 |
| Average daytime temperature (°C) | 33.8 | 37.1 | 37.1 | 38.1 | 36.3 | 33.4 | 30.9 | 30.1 | 31.3 | 32.3 | 33.6 | 33.2 |
| Average temperature (°C) | 25.5 | 28.0 | 28.0 | 29.8 | 29.7 | 28.3 | 26.4 | 26.0 | 26.5 | 27.1 | 26.6 | 25.1 |
| Average night temperature (°C) | 19.2 | 21.0 | 21.3 | 23.5 | 25.2 | 25.0 | 23.9 | 23.7 | 23.8 | 24.0 | 21.2 | 19.0 |
| Absolute minimum temperature (°C) | 17.0 | 18.9 | 19.6 | 21.3 | 22.5 | 23.6 | 22.9 | 22.2 | 22.8 | 22.9 | 16.6 | 16.5 |
| 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) | 10.0 | 10.6 | 10.7 | 10.9 | 9.3 | 9.0 | 8.0 | 6.8 | 8.3 | 8.9 | 10.1 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 5 | 112 | 247 | 345 | 283 | 182 | 5 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 26 | 12 | 0 | 0 | 0 | 6 | 27 | 30 |
| Rainy days | 0 | 0 | 0 | 0 | 5 | 18 | 31 | 31 | 30 | 25 | 3 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mantem is at