Temperatuur — 2025
| Maand | Zwijndrecht | Ridderkerk | Verschil |
|---|---|---|---|
| Jan | 3.4 °C | 3.8 °C | -0.4 |
| Feb | 4.2 °C | 3.9 °C | +0.3 |
| Mrt | 7.8 °C | 7.4 °C | +0.4 |
| Apr | 12.6 °C | 11.6 °C | +1.0 |
| Mei | 15.3 °C | 14.4 °C | +0.9 |
| Jun | 19.7 °C | 18.4 °C | +1.3 |
| Jul | 19.7 °C | 19.2 °C | +0.5 |
| Aug |
| 19.7 °C |
| 18.8 °C |
| +0.9 |
| Sep | 15.9 °C | 15.6 °C | +0.3 |
| Okt | 12.3 °C | 12.3 °C | +0.0 |
| Nov | 8.2 °C | 8.1 °C | +0.1 |
| Dec | 6.1 °C | 6.1 °C | +0.0 |