Zonneschijn — 2026
| Maand | Midden-Delfland | Vlaardingen | Verschil |
|---|---|---|---|
| Jan | – | 117.1 uren | – |
| Feb | – | 124.9 uren | – |
| Mrt | 20 uren | 159.6 uren | -139.6 |
| Apr | 28.6 uren | 29.6 uren | -1.0 |
| Mei | 423.5 uren | 423.5 uren | +0.0 |
| Jun | 425 uren | 425 uren | +0.0 |
| Jul | 370.6 uren | 372 uren | -1.4 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |