Bewolking — 2023
| Month | Zoetermeer | Leidschendam-Voorburg | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 84.5 % | 100 % | -15.5 |
| Apr | 66.6 % | 66.6 % | +0.0 |
| May | 62.1 % | 62.2 % | -0.1 |
| Jun | 43.2 % | 43 % | +0.2 |
| Jul | 63 % | 63 % | +0.0 |
| Aug |
| 60 % |
| 60 % |
| +0.0 |
| Sep | 64.7 % | 64.7 % | +0.0 |
| Oct | 83.5 % | 83.5 % | +0.0 |
| Nov | 77.3 % | 77.3 % | +0.0 |
| Dec | 82.6 % | 82.6 % | +0.0 |