Average annual temperature is 11.7 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -4.8 °C
Number of sunny days: 119 days
Number of rainy days: 242 days
Number of snow days: 4 days
Look at detailed online map of Olloy-sur-Viroin
* Weather data for Olloy-sur-Viroin Belgium is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 13.9 | 13.3 | 16.1 | 18.5 | 23.3 | 28.5 | 29.8 | 29.2 | 30.6 | 24.6 | 14.9 | 11.4 |
| Average daytime temperature (°C) | 6.5 | 8.2 | 10.2 | 12.2 | 17.7 | 24.4 | 22.6 | 21.9 | 23.3 | 17.0 | 9.7 | 8.0 |
| Average temperature (°C) | 4.5 | 5.1 | 7.0 | 8.2 | 13.2 | 19.7 | 18.5 | 18.0 | 18.5 | 13.5 | 7.6 | 6.2 |
| Average night temperature (°C) | 2.3 | 2.4 | 3.6 | 4.0 | 8.4 | 13.9 | 14.2 | 13.7 | 13.9 | 10.2 | 5.7 | 4.4 |
| Absolute minimum temperature (°C) | -4.8 | -3.3 | -3.4 | -2.5 | 2.6 | 9.3 | 10.4 | 9.9 | 8.7 | 1.9 | -2.0 | -3.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.6 | 10.1 | 11.9 | 13.8 | 15.4 | 16.3 | 15.9 | 14.4 | 12.6 | 10.7 | 9.1 | 8.2 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.3 | 5.3 | 4.9 | 7.1 | 10.8 | 13.1 | 10.8 | 9.4 | 9.5 | 5.8 | 2.6 | 1.8 |
| Precipitation (mm) | 115 | 14 | 132 | 82 | 65 | 58 | 104 | 107 | 46 | 108 | 140 | 86 |
| Sunny days | 7 | 14 | 6 | 8 | 13 | 19 | 7 | 7 | 19 | 10 | 2 | 7 |
| Rainy days | 21 | 14 | 25 | 22 | 18 | 11 | 24 | 24 | 11 | 21 | 28 | 23 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Olloy-sur-Viroin during the most sunny months:
Months with the longest average daylight duration in Olloy-sur-Viroin:
The largest precipitation sum in Olloy-sur-Viroin is at