June in Aachen averages a daily high of 20.7°C with nights around 10.9°C. Expect roughly 12.3 wet days totalling 70.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Aachen is June–September.
Based on NIDEGGEN SCHMIDT, GM (26.5km), 1995–2024. 30 years of June data.