Zonneschijn — 2026
| Month | Schiedam | Midden-Delfland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 19.3 uren | 20 uren | -0.7 |
| Apr | 28.5 uren | 28.6 uren | -0.1 |
| May | 422 uren | 423.5 uren | -1.5 |
| Jun | 423.7 uren | 425 uren | -1.3 |
| Jul | 369.7 uren | 370.8 uren | -1.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |