Average annual temperature is 26.8 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 18.0 °C
Number of sunny days: 92 days
Number of rainy days: 273 days
Look at detailed online map of Onitsha
* Weather data for Onitsha 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) | 35.3 | 37.6 | 36.5 | 34.2 | 34.0 | 31.7 | 31.5 | 31.5 | 32.3 | 32.1 | 33.1 | 37.0 |
| Average daytime temperature (°C) | 34.4 | 35.8 | 33.5 | 32.3 | 31.9 | 29.2 | 29.6 | 29.7 | 29.8 | 30.4 | 31.4 | 34.9 |
| Average temperature (°C) | 27.5 | 29.2 | 27.8 | 27.4 | 27.2 | 25.4 | 25.5 | 25.6 | 25.6 | 26.2 | 26.7 | 28.1 |
| Average night temperature (°C) | 21.4 | 23.6 | 24.2 | 24.3 | 24.4 | 23.4 | 23.2 | 23.3 | 23.1 | 23.7 | 23.7 | 22.0 |
| Absolute minimum temperature (°C) | 18.0 | 19.8 | 23.1 | 23.3 | 23.2 | 22.8 | 22.1 | 22.1 | 22.0 | 22.7 | 22.1 | 19.0 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.9 | 9.8 | 7.8 | 8.4 | 8.3 | 6.5 | 7.8 | 6.7 | 6.7 | 7.0 | 8.0 | 10.4 |
| Precipitation (mm) | 7 | 2 | 87 | 107 | 146 | 247 | 235 | 222 | 202 | 170 | 90 | 1 |
| Sunny days | 25 | 17 | 6 | 8 | 4 | 0 | 0 | 1 | 1 | 0 | 5 | 25 |
| Rainy days | 6 | 11 | 25 | 22 | 27 | 30 | 31 | 30 | 29 | 31 | 25 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Onitsha during the most sunny months:
The largest precipitation sum in Onitsha is at