February in Winterthur averages a daily high of 5.8°C with nights around -0.6°C. Expect roughly 11.7 wet days totalling 61.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Winterthur is May–September.
Based on ZUERICH FLUNTERN, SZ (18.1km), 1995–2024. 30 years of February data.