Zonneschijn — 2026
| Month | Maassluis | Midden-Delfland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 19.7 uren | 20 uren | -0.3 |
| Apr | 30 uren | 28.6 uren | +1.4 |
| May | 423.5 uren | 423.5 uren | +0.0 |
| Jun | 425.1 uren | 425 uren | +0.1 |
| Jul | 441.6 uren | 441.6 uren | +0.0 |
| Aug |
| 394.1 uren |
| 394.1 uren |
| +0.0 |
| Sep | 93.9 uren | 93.5 uren | +0.4 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |