Average annual temperature is 26.4 °C
Absolute maximum temperature: 39.3 °C
Absolute minimum temperature: 12.7 °C
Number of sunny days: 188 days
Number of rainy days: 177 days
Look at detailed online map of Koumana
* Weather data for Koumana Guinea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.8 | 36.6 | 38.1 | 39.3 | 38.3 | 33.3 | 33.2 | 32.6 | 32.8 | 33.3 | 34.5 | 34.3 |
| Average daytime temperature (°C) | 31.2 | 34.7 | 36.0 | 36.8 | 33.6 | 31.0 | 30.5 | 29.5 | 30.0 | 31.0 | 33.1 | 32.7 |
| Average temperature (°C) | 23.1 | 26.9 | 29.2 | 30.1 | 28.0 | 26.3 | 25.7 | 25.1 | 25.2 | 25.9 | 26.7 | 24.3 |
| Average night temperature (°C) | 15.8 | 19.7 | 22.8 | 24.4 | 23.8 | 22.7 | 22.2 | 21.9 | 21.8 | 21.9 | 21.0 | 16.5 |
| Absolute minimum temperature (°C) | 12.7 | 16.4 | 18.7 | 22.1 | 22.4 | 21.7 | 21.1 | 21.1 | 20.9 | 19.8 | 16.8 | 13.2 |
| 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) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.7 | 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) | 10.2 | 10.1 | 10.2 | 10.0 | 9.0 | 9.1 | 9.5 | 8.4 | 9.1 | 10.2 | 10.5 | 10.6 |
| Precipitation (mm) | 0 | 0 | 2 | 41 | 104 | 147 | 179 | 255 | 309 | 122 | 1 | 0 |
| Sunny days | 30 | 28 | 26 | 23 | 8 | 5 | 3 | 0 | 1 | 8 | 25 | 31 |
| Rainy days | 1 | 0 | 5 | 7 | 23 | 25 | 28 | 31 | 29 | 23 | 5 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Koumana is at