May in Wiesbaden averages a daily high of 19.1°C with nights around 8.4°C. Expect roughly 12.5 wet days totalling 66.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wiesbaden is May–September.
Based on WIESBADEN AURINGEN, GM (7.4km), 1995–2024. 30 years of May data.