Wind — 2026
| Month | Westerlo | Olen | Difference |
|---|---|---|---|
| Jan | 12.6 km/h | 12.2 km/h | +0.4 |
| Feb | 14.1 km/h | 13.8 km/h | +0.3 |
| Mar | 10.3 km/h | 10.9 km/h | -0.6 |
| Apr | 9 km/h | 10.4 km/h | -1.4 |
| May | 10.8 km/h | 11.1 km/h | -0.3 |
| Jun | 12.2 km/h | 12.4 km/h | -0.2 |
| Jul | 11.4 km/h | 11.9 km/h | -0.5 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |