Average annual temperature is 27.2 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 113 days
Number of rainy days: 252 days
Look at detailed online map of Osu
* Weather data for Osu 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) | 36.8 | 38.4 | 37.8 | 36.0 | 34.7 | 33.1 | 32.3 | 32.4 | 32.8 | 33.3 | 33.6 | 36.1 |
| Average daytime temperature (°C) | 35.7 | 36.7 | 34.4 | 33.7 | 33.0 | 30.5 | 30.4 | 30.2 | 30.7 | 31.5 | 32.0 | 34.3 |
| Average temperature (°C) | 28.2 | 29.7 | 28.4 | 28.2 | 27.8 | 25.8 | 25.8 | 25.7 | 26.0 | 26.5 | 26.9 | 27.3 |
| Average night temperature (°C) | 21.9 | 23.9 | 24.6 | 24.7 | 24.6 | 23.4 | 23.1 | 23.3 | 23.3 | 23.6 | 23.6 | 21.6 |
| Absolute minimum temperature (°C) | 18.1 | 20.2 | 22.8 | 23.3 | 23.1 | 22.2 | 22.3 | 22.4 | 22.4 | 22.7 | 22.4 | 18.6 |
| 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) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.4 | 12.3 | 12.2 | 12.0 | 11.8 | 11.8 |
| 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 | 9.8 | 7.8 | 8.1 | 8.2 | 6.6 | 7.5 | 6.1 | 7.3 | 7.5 | 7.6 | 10.7 |
| Precipitation (mm) | 5 | 1 | 118 | 68 | 132 | 251 | 258 | 291 | 215 | 223 | 128 | 0 |
| Sunny days | 27 | 22 | 6 | 11 | 3 | 0 | 0 | 1 | 1 | 1 | 11 | 30 |
| Rainy days | 4 | 6 | 25 | 19 | 28 | 30 | 31 | 30 | 29 | 30 | 19 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Osu during the most sunny months:
The largest precipitation sum in Osu is at