Wind — 2026
| Month | Voorschoten | Leidschendam-Voorburg | Difference |
|---|---|---|---|
| Jan | – | 12.5 km/h | – |
| Feb | – | 13.9 km/h | – |
| Mar | 20 km/h | 11.8 km/h | +8.2 |
| Apr | 15.3 km/h | 17.5 km/h | -2.2 |
| May | 13.1 km/h | 13.1 km/h | +0.0 |
| Jun | 14.9 km/h | 14.9 km/h | +0.0 |
| Jul | 14.3 km/h | 14.3 km/h | +0.0 |
| Aug |
| 13.5 km/h |
| 13.5 km/h |
| +0.0 |
| Sep | 14.7 km/h | 14.7 km/h | +0.0 |
| Oct | 16.5 km/h | 17.1 km/h | -0.6 |
| Nov | – | – | – |
| Dec | – | – | – |