Bewolking — 2026
| Monat | Hardinxveld-Giessendam | Altena | Unterschied |
|---|---|---|---|
| Jan | 77.6 % | – | – |
| Feb | 81 % | – | – |
| Mär | 52.2 % | 64.2 % | -12.0 |
| Apr | 78.2 % | 77.7 % | +0.5 |
| Mai | 60 % | 60.4 % | -0.4 |
| Jun | 62.1 % | 62.2 % | -0.1 |
| Jul | 47.8 % | 47.9 % | -0.1 |
| Aug |
| 54.4 % |
| 54.2 % |
| +0.2 |
| Sep | 73 % | 72.2 % | +0.8 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |