Wind — 2026
| Month | Hastière | Onhaye | Difference |
|---|---|---|---|
| Jan | 12.9 km/h | 12.9 km/h | +0.0 |
| Feb | 14.9 km/h | 14.9 km/h | +0.0 |
| Mar | 7.1 km/h | 8.1 km/h | -1.0 |
| Apr | 9.9 km/h | 12.4 km/h | -2.5 |
| May | 11.4 km/h | 11.4 km/h | +0.0 |
| Jun | 12.5 km/h | 12.5 km/h | +0.0 |
| Jul | 11 km/h | 11.5 km/h | -0.5 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |