Average annual temperature is 27.2 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 213 days
Number of rainy days: 152 days
Look at detailed online map of Ouassamana
* Weather data for Ouassamana 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) | 35.5 | 38.0 | 38.8 | 39.8 | 38.2 | 34.1 | 33.6 | 32.0 | 32.5 | 34.8 | 35.7 | 35.0 |
| Average daytime temperature (°C) | 32.2 | 35.4 | 36.7 | 37.5 | 34.2 | 31.6 | 30.3 | 28.9 | 29.9 | 32.3 | 33.7 | 32.9 |
| Average temperature (°C) | 25.0 | 28.2 | 30.2 | 31.1 | 28.8 | 27.1 | 26.0 | 24.9 | 25.5 | 27.1 | 27.3 | 25.3 |
| Average night temperature (°C) | 18.4 | 21.0 | 24.1 | 25.2 | 24.3 | 23.3 | 22.4 | 21.9 | 22.0 | 22.5 | 21.4 | 18.2 |
| Absolute minimum temperature (°C) | 15.0 | 19.0 | 20.6 | 23.4 | 22.0 | 22.1 | 21.7 | 21.4 | 20.8 | 20.8 | 17.9 | 15.6 |
| 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 | 12.6 | 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) | 10.4 | 10.3 | 10.5 | 10.2 | 9.3 | 9.2 | 9.4 | 8.1 | 9.6 | 10.4 | 10.4 | 10.6 |
| Precipitation (mm) | 0 | 0 | 3 | 13 | 139 | 69 | 154 | 251 | 164 | 41 | 4 | 0 |
| Sunny days | 31 | 27 | 29 | 25 | 12 | 8 | 3 | 1 | 6 | 14 | 26 | 31 |
| Rainy days | 0 | 1 | 2 | 5 | 19 | 22 | 28 | 30 | 24 | 17 | 4 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ouassamana is at