Zonneschijn — 2026
| Maand | Schiedam | Midden-Delfland | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 19.3 uren | 20 uren | -0.7 |
| Apr | 28.5 uren | 28.6 uren | -0.1 |
| Mei | 422 uren | 423.5 uren | -1.5 |
| Jun | 423.7 uren | 425 uren | -1.3 |
| Jul | 440.8 uren | 441.6 uren | -0.8 |
| Aug |
| 392.6 uren |
| 394.1 uren |
| -1.5 |
| Sep | 308.9 uren | 309.2 uren | -0.3 |
| Okt | 233.5 uren | 233.4 uren | +0.1 |
| Nov | – | – | – |
| Dec | – | – | – |