Wind — 2024
| Month | Haarlem | Heemstede | Difference |
|---|---|---|---|
| Jan | 22.7 km/h | – | – |
| Feb | 21.8 km/h | – | – |
| Mar | 17.4 km/h | – | – |
| Apr | 21.3 km/h | – | – |
| May | 14 km/h | – | – |
| Jun | 15.8 km/h | – | – |
| Jul | 15.7 km/h | – | – |
| Aug | 15.7 km/h | – | – |
| Sep |
| 16.1 km/h |
| – |
| – |
| Oct | 15.2 km/h | – | – |
| Nov | 15.2 km/h | – | – |
| Dec | 18.1 km/h | – | – |