Temperatuur — 2026
| Maand | Den Haag | Wassenaar | Verschil |
|---|---|---|---|
| Jan | 3.4 °C | – | – |
| Feb | 6 °C | – | – |
| Mrt | 8.8 °C | 7.9 °C | +0.9 |
| Apr | 10.1 °C | 9.2 °C | +0.9 |
| Mei | 14.4 °C | 13.3 °C | +1.1 |
| Jun | 18.4 °C | 17.3 °C | +1.1 |
| Jul | 20 °C | 19.1 °C | +0.9 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |