Gevoelstemperatuur — 2026
| Month | Alphen aan den Rijn | Leiderdorp | Difference |
|---|---|---|---|
| Jan | -1.1 °C | – | – |
| Feb | 2.2 °C | – | – |
| Mar | 5 °C | 3.2 °C | +1.8 |
| Apr | 6.2 °C | 5.8 °C | +0.4 |
| May | 10.3 °C | 13.3 °C | -3.0 |
| Jun | 19.1 °C | 18.2 °C | +0.9 |
| Jul | 19.8 °C | 19.3 °C | +0.5 |
| Aug |
| 18.5 °C |
| 19.4 °C |
| -0.9 |
| Sep | 16.8 °C | 17.3 °C | -0.5 |
| Oct | 11.6 °C | 12.5 °C | -0.9 |
| Nov | – | – | – |
| Dec | – | – | – |