Temperatuur — 2026
| Monat | Nissewaard | Maassluis | Unterschied |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mär | 7.3 °C | 7.8 °C | -0.5 |
| Apr | 9 °C | 9.4 °C | -0.4 |
| Mai | 15 °C | 14.4 °C | +0.6 |
| Jun | 19 °C | 18.4 °C | +0.6 |
| Jul | 20.3 °C | 19.7 °C | +0.6 |
| Aug |
| 19.7 °C |
| 19.5 °C |
| +0.2 |
| Sep | 17.4 °C | 17.4 °C | +0.0 |
| Okt | 12.8 °C | 13.1 °C | -0.3 |
| Nov | – | – | – |
| Dez | – | – | – |