Zonneschijn — 2026
| Month | Katwijk | Oegstgeest | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 21.8 uren | 21.5 uren | +0.3 |
| Apr | 30 uren | 30.2 uren | -0.2 |
| May | 423.6 uren | 423.6 uren | +0.0 |
| Jun | 425.8 uren | 425.7 uren | +0.1 |
| Jul | 370.9 uren | 369.5 uren | +1.4 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |