Wind — 2025
| Maand | Alphen aan den Rijn | Kaag en Braassem | Verschil |
|---|---|---|---|
| Jan | 12.4 km/h | – | – |
| Feb | 12.1 km/h | – | – |
| Mrt | 9.5 km/h | – | – |
| Apr | 9.9 km/h | – | – |
| Mei | 12.9 km/h | – | – |
| Jun | 13 km/h | – | – |
| Jul | 10.3 km/h | – | – |
| Aug | 10.6 km/h | – | – |
| Sep |
| 13.5 km/h |
| – |
| – |
| Okt | 14 km/h | – | – |
| Nov | 13.3 km/h | – | – |
| Dec | 14.3 km/h | – | – |