Average annual temperature is 12.2 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 122 days
Number of rainy days: 243 days
Look at detailed online map of Hornu
* Weather data for Hornu 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) | 15.0 | 12.7 | 16.7 | 16.9 | 23.8 | 29.8 | 30.1 | 28.3 | 31.5 | 25.1 | 15.7 | 13.0 |
| Average daytime temperature (°C) | 7.4 | 8.9 | 10.9 | 12.7 | 18.0 | 25.0 | 22.8 | 22.5 | 23.6 | 17.5 | 10.5 | 8.9 |
| Average temperature (°C) | 5.3 | 5.7 | 7.6 | 8.6 | 13.4 | 20.0 | 18.8 | 18.3 | 18.9 | 13.9 | 8.1 | 6.9 |
| Average night temperature (°C) | 2.9 | 2.5 | 4.1 | 4.2 | 8.2 | 14.0 | 14.5 | 13.9 | 14.4 | 10.5 | 5.9 | 4.9 |
| Absolute minimum temperature (°C) | -3.5 | -4.2 | -3.2 | -2.4 | 3.3 | 10.1 | 11.2 | 10.8 | 9.2 | 2.2 | 0.4 | -5.6 |
| 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 | 15.5 | 16.4 | 15.9 | 14.5 | 12.6 | 10.7 | 9.0 | 8.1 |
| 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) | 3.0 | 5.1 | 5.1 | 7.4 | 10.4 | 12.9 | 10.8 | 10.5 | 9.2 | 6.2 | 3.6 | 2.1 |
| Precipitation (mm) | 83 | 12 | 132 | 94 | 59 | 29 | 121 | 78 | 77 | 119 | 123 | 77 |
| Sunny days | 8 | 14 | 4 | 9 | 14 | 22 | 6 | 5 | 18 | 11 | 3 | 8 |
| Rainy days | 23 | 14 | 27 | 21 | 17 | 8 | 25 | 26 | 12 | 20 | 27 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hornu during the most sunny months:
Months with the longest average daylight duration in Hornu:
The largest precipitation sum in Hornu is at