Average annual temperature is 27.4 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 18.9 °C
Number of sunny days: 143 days
Number of rainy days: 222 days
Look at detailed online map of Roi
* Weather data for Roi 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) | 37.2 | 38.0 | 38.1 | 38.0 | 35.2 | 33.4 | 32.5 | 32.1 | 32.3 | 32.9 | 33.1 | 34.5 |
| Average daytime temperature (°C) | 35.5 | 36.7 | 35.2 | 35.0 | 33.7 | 30.1 | 30.5 | 29.7 | 30.1 | 31.4 | 31.6 | 33.1 |
| Average temperature (°C) | 28.3 | 29.8 | 29.3 | 29.5 | 28.4 | 25.8 | 26.0 | 25.7 | 25.8 | 26.6 | 26.8 | 26.5 |
| Average night temperature (°C) | 22.3 | 23.9 | 25.0 | 25.4 | 24.7 | 23.3 | 23.1 | 23.2 | 22.9 | 23.5 | 23.3 | 21.1 |
| Absolute minimum temperature (°C) | 20.4 | 19.5 | 22.7 | 23.5 | 23.2 | 22.1 | 22.1 | 22.2 | 21.8 | 22.6 | 21.7 | 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 | 12.4 | 12.5 | 12.5 | 12.3 | 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) | 10.5 | 10.5 | 7.7 | 8.8 | 8.3 | 6.1 | 7.7 | 6.8 | 7.4 | 8.6 | 8.1 | 10.6 |
| Precipitation (mm) | 1 | 0 | 37 | 37 | 121 | 258 | 166 | 262 | 189 | 138 | 87 | 0 |
| Sunny days | 29 | 27 | 16 | 15 | 5 | 1 | 1 | 0 | 2 | 3 | 13 | 31 |
| Rainy days | 2 | 1 | 15 | 15 | 26 | 29 | 30 | 31 | 28 | 28 | 17 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Roi during the most sunny months:
The largest precipitation sum in Roi is at