Temperatuur — 2026
| Monat | Heerlen | Brunssum | Unterschied |
|---|---|---|---|
| Jan | 2.8 °C | – | – |
| Feb | 6.5 °C | – | – |
| Mär | 8.6 °C | 6.4 °C | +2.2 |
| Apr | 9.4 °C | 9.5 °C | -0.1 |
| Mai | 15 °C | 15 °C | +0.0 |
| Jun | 20.2 °C | 20.2 °C | +0.0 |
| Jul | 21.3 °C | 21.3 °C | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |