Average annual temperature is 25.0 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: 18.7 °C
Number of sunny days: 34 days
Number of rainy days: 331 days
Look at detailed online map of Onia
* Weather data for Onia Republic of the Congo is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 33.5 | 35.0 | 36.1 | 33.7 | 33.7 | 32.6 | 32.5 | 32.8 | 33.1 | 33.9 | 31.7 | 34.2 |
| Average daytime temperature (°C) | 31.0 | 32.8 | 31.4 | 30.4 | 31.1 | 29.5 | 30.4 | 30.0 | 30.0 | 30.1 | 29.7 | 31.0 |
| Average temperature (°C) | 24.9 | 25.9 | 25.1 | 24.9 | 25.5 | 24.4 | 25.0 | 24.8 | 24.8 | 24.9 | 24.4 | 25.4 |
| Average night temperature (°C) | 21.0 | 21.4 | 21.5 | 21.5 | 22.0 | 21.4 | 21.4 | 21.4 | 21.7 | 21.8 | 21.6 | 21.8 |
| Absolute minimum temperature (°C) | 19.2 | 18.7 | 20.3 | 20.0 | 20.8 | 20.3 | 20.7 | 20.0 | 20.7 | 20.9 | 20.6 | 19.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.9 | 9.8 | 7.8 | 8.2 | 9.1 | 7.7 | 9.9 | 8.6 | 8.2 | 8.3 | 7.6 | 8.7 |
| Precipitation (mm) | 70 | 54 | 186 | 188 | 141 | 128 | 46 | 110 | 158 | 197 | 275 | 140 |
| Sunny days | 9 | 7 | 2 | 1 | 2 | 1 | 1 | 2 | 0 | 0 | 2 | 7 |
| Rainy days | 22 | 21 | 29 | 29 | 29 | 29 | 30 | 29 | 30 | 31 | 28 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Onia is at