Average annual temperature is 26.0 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 18.3 °C
Number of sunny days: 92 days
Number of rainy days: 273 days
Look at detailed online map of Osa
* Weather data for Osa Nigeria is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.8 | 38.1 | 36.0 | 34.3 | 33.7 | 31.6 | 30.5 | 30.1 | 31.1 | 32.3 | 33.1 | 36.4 |
| Average daytime temperature (°C) | 34.5 | 35.5 | 33.1 | 32.2 | 31.5 | 28.8 | 28.7 | 28.2 | 29.0 | 30.2 | 31.3 | 34.3 |
| Average temperature (°C) | 26.7 | 28.2 | 27.0 | 26.9 | 26.4 | 24.7 | 24.6 | 24.4 | 24.5 | 25.5 | 26.1 | 26.9 |
| Average night temperature (°C) | 21.1 | 23.4 | 23.4 | 23.7 | 23.4 | 22.3 | 22.4 | 22.2 | 22.2 | 22.7 | 23.0 | 21.1 |
| Absolute minimum temperature (°C) | 18.3 | 20.1 | 21.7 | 22.5 | 22.1 | 21.0 | 21.3 | 21.5 | 21.1 | 21.4 | 21.4 | 18.9 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.5 | 12.5 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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) | 9.6 | 9.6 | 8.1 | 8.0 | 8.5 | 6.4 | 7.7 | 6.5 | 6.6 | 8.2 | 8.9 | 10.2 |
| Precipitation (mm) | 17 | 12 | 92 | 47 | 84 | 253 | 203 | 248 | 233 | 88 | 59 | 0 |
| Sunny days | 23 | 18 | 7 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 8 | 28 |
| Rainy days | 8 | 10 | 24 | 26 | 28 | 29 | 31 | 31 | 30 | 31 | 22 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Osa is at