Wind — 2026
| Month | Haarlemmermeer | Haarlem | Difference |
|---|---|---|---|
| Jan | 14.5 km/h | 15.2 km/h | -0.7 |
| Feb | 15.6 km/h | 16.2 km/h | -0.6 |
| Mar | 13 km/h | 13.4 km/h | -0.4 |
| Apr | 15.9 km/h | 15.1 km/h | +0.8 |
| May | 14.6 km/h | 15.8 km/h | -1.2 |
| Jun | 16.3 km/h | 17.8 km/h | -1.5 |
| Jul | 16.2 km/h | 17.4 km/h | -1.2 |
| Aug | 14.9 km/h | 16 km/h | -1.1 |
| Sep | 16.9 km/h | 18.8 km/h | -1.9 |
| Oct | 18.4 km/h | 20.1 km/h | -1.7 |
| Nov | – | – | – |
| Dec | – | – | – |