October in Winterthur averages a daily high of 14.3°C with nights around 7.5°C. Expect roughly 12.3 wet days totalling 81.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Winterthur is May–September.
Based on ZUERICH FLUNTERN, SZ (18.1km), 1995–2024. 30 years of October data.