Climate in Aachen: average temperature by month
In Aachen the warmest month is July, with 23.7 °C on average in the afternoon; the coolest is January, with 5.6 °C.
Measured at the weather station Maastricht, 27 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 5.6 °C | 5.3 °C – 6.1 °C |
| February | 7.2 °C | 6.2 °C – 8.6 °C |
| March | 10.8 °C | 8.7 °C – 12.6 °C |
| April | 14.6 °C | 12.7 °C – 16.4 °C |
| May | 18.9 °C | 16.5 °C – 20.8 °C |
| June | 22.2 °C | 20.9 °C – 23.3 °C |
| July | 23.7 °C | 23.2 °C – 24.3 °C |
| August | 23.5 °C | 22.2 °C – 24.2 °C |
| September | 20.0 °C | 17.3 °C – 22.1 °C |
| October | 15.2 °C | 12.7 °C – 17.2 °C |
| November | 9.6 °C | 7.2 °C – 12.5 °C |
| December | 6.6 °C | 6.0 °C – 7.1 °C |