October in Troisdorf averages a daily high of 15.7°C with nights around 7.2°C. Expect roughly 13.7 wet days totalling 63mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Troisdorf is May–September.
Based on KOLN BONN, GM (6.3km), 1995–2024. 30 years of October data.