Average annual temperature is 26.5 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: 19.3 °C
Number of sunny days: 243 days
Number of rainy days: 122 days
Look at detailed online map of Ossor
* Weather data for Ossor 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) | 33.4 | 34.8 | 34.6 | 34.8 | 31.2 | 29.8 | 29.8 | 28.9 | 30.5 | 32.1 | 32.7 | 33.0 |
| Average daytime temperature (°C) | 28.7 | 29.7 | 26.9 | 28.0 | 27.9 | 28.6 | 28.4 | 28.1 | 28.9 | 29.6 | 30.8 | 30.5 |
| Average temperature (°C) | 24.8 | 24.5 | 24.5 | 25.4 | 26.3 | 27.7 | 27.4 | 27.0 | 27.5 | 28.2 | 28.3 | 26.6 |
| Average night temperature (°C) | 21.8 | 21.8 | 22.8 | 23.6 | 25.1 | 26.7 | 26.2 | 25.8 | 26.2 | 26.8 | 25.6 | 23.2 |
| Absolute minimum temperature (°C) | 19.3 | 20.2 | 20.9 | 22.0 | 23.1 | 25.2 | 24.2 | 24.4 | 24.5 | 24.5 | 22.9 | 20.5 |
| 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) | 9.9 | 10.8 | 10.8 | 11.2 | 10.3 | 9.6 | 8.4 | 6.7 | 8.7 | 9.1 | 10.0 | 9.8 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 52 | 309 | 430 | 255 | 88 | 0 | 0 |
| Sunny days | 29 | 28 | 31 | 30 | 30 | 13 | 3 | 2 | 4 | 13 | 29 | 31 |
| Rainy days | 2 | 0 | 0 | 0 | 1 | 17 | 28 | 29 | 26 | 18 | 1 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ossor is at