Wind — 2026
| Month | Ham-sur-Heure-Nalinnes | Thuin | Difference |
|---|---|---|---|
| Jan | 15.7 km/h | 14.9 km/h | +0.8 |
| Feb | 17.2 km/h | 16.5 km/h | +0.7 |
| Mar | 10.9 km/h | 10.3 km/h | +0.6 |
| Apr | 9.7 km/h | 9.5 km/h | +0.2 |
| May | 11.9 km/h | 11.9 km/h | +0.0 |
| Jun | 13.3 km/h | 13.3 km/h | +0.0 |
| Jul | 12.2 km/h | 12.1 km/h | +0.1 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |