Average annual temperature is 22.3 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days: 32 days
Number of rainy days: 333 days
Look at detailed online map of Onto
* Weather data for Onto 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) | 28.3 | 30.1 | 30.2 | 29.4 | 29.0 | 27.7 | 28.9 | 29.1 | 29.1 | 29.8 | 27.9 | 29.1 |
| Average daytime temperature (°C) | 26.4 | 27.9 | 27.5 | 27.3 | 27.5 | 26.4 | 27.0 | 26.9 | 27.1 | 26.8 | 26.4 | 26.8 |
| Average temperature (°C) | 21.6 | 22.4 | 22.4 | 22.5 | 22.8 | 22.0 | 22.2 | 22.3 | 22.4 | 22.3 | 22.0 | 22.4 |
| Average night temperature (°C) | 18.4 | 18.9 | 19.0 | 19.2 | 19.5 | 18.6 | 17.8 | 18.3 | 19.1 | 19.5 | 19.2 | 19.3 |
| Absolute minimum temperature (°C) | 16.8 | 16.5 | 16.6 | 18.4 | 18.3 | 16.6 | 16.1 | 16.8 | 17.8 | 18.6 | 18.2 | 18.0 |
| 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 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.1 | 8.6 | 7.9 | 7.9 | 8.5 | 9.3 | 10.0 | 9.4 | 8.3 | 7.3 | 7.2 | 7.7 |
| Precipitation (mm) | 221 | 204 | 272 | 230 | 159 | 71 | 15 | 79 | 77 | 293 | 297 | 230 |
| Sunny days | 3 | 1 | 0 | 0 | 1 | 7 | 10 | 8 | 2 | 0 | 0 | 0 |
| Rainy days | 28 | 27 | 31 | 30 | 30 | 23 | 21 | 23 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Onto is at