Zonneschijn — 2026
| Maand | Castricum | Heiloo | Verschil |
|---|---|---|---|
| Jan | 108.3 uren | – | – |
| Feb | 133.9 uren | – | – |
| Mrt | 265.7 uren | 21.2 uren | +244.5 |
| Apr | 37.1 uren | 36.1 uren | +1.0 |
| Mei | 424.2 uren | 424.2 uren | +0.0 |
| Jun | 426.1 uren | 426 uren | +0.1 |
| Jul | 368.7 uren | 367.9 uren | +0.8 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |