Temperatuur — 2026
| Mois | Beverwijk | Castricum | Différence |
|---|---|---|---|
| Jan | – | 2.9 °C | – |
| Fév | – | 5.1 °C | – |
| Mar | 8.6 °C | 7.9 °C | +0.7 |
| Avr | 9.9 °C | 9.4 °C | +0.5 |
| Mai | 13.5 °C | 13.5 °C | +0.0 |
| Juin | 17.8 °C | 17.8 °C | +0.0 |
| Juil | 18.9 °C | 18.9 °C | +0.0 |
| Aoû |
| 19 °C |
| 19 °C |
| +0.0 |
| Sep | 17.9 °C | 17.5 °C | +0.4 |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |