Temperatuur — 2026
| Monat | IJsselstein | Montfoort | Unterschied |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mär | 7.1 °C | 7.3 °C | -0.2 |
| Apr | 8.9 °C | 8.8 °C | +0.1 |
| Mai | 14.7 °C | 14.7 °C | +0.0 |
| Jun | 19.1 °C | 19.1 °C | +0.0 |
| Jul | 19.8 °C | 19.8 °C | +0.0 |
| Aug |
| 19.2 °C |
| 19.2 °C |
| +0.0 |
| Sep | 16.9 °C | 16.8 °C | +0.1 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |