May in Wenzhou averages a daily high of 25.8°C with nights around 18.8°C. Expect roughly 15.8 wet days totalling 175.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wenzhou is October.
Based on RUIAN, CH (24.1km), 1995–2024. 18 years of May data.