Zonneschijn — 2026
| Monat | Heiloo | Castricum | Unterschied |
|---|---|---|---|
| Jan | – | 108.3 uren | – |
| Feb | – | 133.9 uren | – |
| Mär | 21.2 uren | 265.7 uren | -244.5 |
| Apr | 36.1 uren | 37.1 uren | -1.0 |
| Mai | 424.2 uren | 424.2 uren | +0.0 |
| Jun | 426 uren | 426.1 uren | -0.1 |
| Jul | 440.8 uren | 440.8 uren | +0.0 |
| Aug |
| 392.2 uren |
| 392.2 uren |
| +0.0 |
| Sep | 78.5 uren | 81.3 uren | -2.8 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |