Temperatuur — 2026
| Maand | Haarlem | Bloemendaal | Verschil |
|---|---|---|---|
| Jan | 3 °C | – | – |
| Feb | 5.4 °C | – | – |
| Mrt | 8.6 °C | 8 °C | +0.6 |
| Apr | 10 °C | 9.2 °C | +0.8 |
| Mei | 13.5 °C | 13 °C | +0.5 |
| Jun | 17.8 °C | 17.1 °C | +0.7 |
| Jul | 18.9 °C | 18.8 °C | +0.1 |
| Aug |
| 19 °C |
| 19.3 °C |
| -0.3 |
| Sep | 17.7 °C | 17.8 °C | -0.1 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |