Zonneschijn — 2026
| Maand | Castricum | Heemskerk | Verschil |
|---|---|---|---|
| Jan | 108.3 uren | – | – |
| Feb | 133.9 uren | – | – |
| Mrt | 265.7 uren | 22.8 uren | +242.9 |
| Apr | 37.1 uren | 38 uren | -0.9 |
| Mei | 424.2 uren | 424.2 uren | +0.0 |
| Jun | 426.1 uren | 426 uren | +0.1 |
| Jul | 440.8 uren | 440.8 uren | +0.0 |
| Aug |
| 392.2 uren |
| 392.2 uren |
| +0.0 |
| Sep | 86.7 uren | 89.9 uren | -3.2 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |