Average annual temperature is 25.8 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 132 days
Number of rainy days: 233 days
Look at detailed online map of Osi
* Weather data for Osi Democratic 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) | 37.3 | 38.8 | 38.9 | 35.9 | 35.3 | 33.7 | 32.9 | 33.9 | 33.7 | 35.0 | 31.2 | 35.1 |
| Average daytime temperature (°C) | 35.2 | 36.2 | 32.5 | 32.5 | 32.3 | 29.7 | 29.9 | 30.6 | 30.5 | 31.6 | 29.1 | 32.6 |
| Average temperature (°C) | 28.0 | 29.0 | 26.4 | 26.1 | 26.4 | 24.7 | 24.5 | 24.9 | 24.9 | 25.6 | 23.8 | 25.5 |
| Average night temperature (°C) | 21.1 | 21.8 | 21.8 | 21.5 | 21.8 | 21.4 | 20.7 | 20.8 | 20.7 | 21.2 | 20.4 | 20.1 |
| Absolute minimum temperature (°C) | 19.5 | 19.4 | 19.7 | 19.7 | 20.0 | 20.0 | 18.3 | 19.1 | 19.1 | 19.7 | 18.9 | 16.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.9 |
| 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) | 10.9 | 10.8 | 8.2 | 9.4 | 10.2 | 8.8 | 9.2 | 9.8 | 9.8 | 8.9 | 7.9 | 10.2 |
| Precipitation (mm) | 0 | 0 | 108 | 50 | 58 | 124 | 90 | 107 | 97 | 86 | 184 | 14 |
| Sunny days | 29 | 27 | 12 | 14 | 10 | 3 | 4 | 4 | 4 | 1 | 2 | 22 |
| Rainy days | 2 | 1 | 19 | 16 | 21 | 27 | 27 | 27 | 26 | 30 | 28 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Osi is at