October in Aachen averages a daily high of 14.1°C with nights around 7.4°C. Expect roughly 13.4 wet days totalling 58.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Aachen is June–September.
Based on NIDEGGEN SCHMIDT, GM (26.5km), 1995–2024. 30 years of October data.