Average annual temperature is 27.2 °C
Absolute maximum temperature: 40.4 °C
Absolute minimum temperature: 16.5 °C
Number of sunny days: 218 days
Number of rainy days: 147 days
Look at detailed online map of Blom
* Weather data for Blom 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) | 37.0 | 39.4 | 40.4 | 39.9 | 39.8 | 37.5 | 32.9 | 32.0 | 33.0 | 33.9 | 35.4 | 36.6 |
| Average daytime temperature (°C) | 33.0 | 36.3 | 35.8 | 36.7 | 35.5 | 32.9 | 30.1 | 29.6 | 30.9 | 31.8 | 33.4 | 34.3 |
| Average temperature (°C) | 24.8 | 27.3 | 27.2 | 28.9 | 29.1 | 28.4 | 26.7 | 26.2 | 26.9 | 27.5 | 27.2 | 26.5 |
| Average night temperature (°C) | 18.8 | 20.9 | 21.3 | 23.2 | 25.0 | 25.5 | 24.3 | 24.1 | 24.3 | 24.7 | 22.2 | 20.4 |
| Absolute minimum temperature (°C) | 16.5 | 19.4 | 19.9 | 21.4 | 22.2 | 24.0 | 23.1 | 22.7 | 22.2 | 23.4 | 18.3 | 17.4 |
| 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 | 12.7 | 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 | 10.7 | 10.8 | 11.1 | 9.8 | 9.2 | 8.1 | 7.0 | 8.1 | 8.8 | 10.2 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 5 | 85 | 326 | 459 | 276 | 151 | 8 | 0 |
| Sunny days | 31 | 28 | 31 | 30 | 24 | 12 | 1 | 0 | 0 | 5 | 25 | 31 |
| Rainy days | 0 | 0 | 0 | 0 | 7 | 18 | 30 | 31 | 30 | 26 | 5 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Blom is at