Zonneschijn — 2026
| Maand | Alphen aan den Rijn | Leiderdorp | Verschil |
|---|---|---|---|
| Jan | 108.9 uren | – | – |
| Feb | 124.9 uren | – | – |
| Mrt | 266.3 uren | 21 uren | +245.3 |
| Apr | 30.6 uren | 32.8 uren | -2.2 |
| Mei | 420.4 uren | 423.6 uren | -3.2 |
| Jun | 420.9 uren | 425.8 uren | -4.9 |
| Jul | 439.2 uren | 441.4 uren | -2.2 |
| Aug |
| 390 uren |
| 393 uren |
| -3.0 |
| Sep | 307.6 uren | 310 uren | -2.4 |
| Okt | 228.5 uren | 231.1 uren | -2.6 |
| Nov | – | – | – |
| Dec | – | – | – |