May in Wolfenbüttel averages a daily high of 18.7°C with nights around 8.4°C. Expect roughly 12.2 wet days totalling 55mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wolfenbüttel is May–September.
Based on BRAUNSCHWEIG, GM (15.4km), 1995–2024. 30 years of May data.