May in Cuxhaven averages a daily high of 16.2°C with nights around 9.7°C. Expect roughly 12.4 wet days totalling 58mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Cuxhaven is June–September.
Based on CUXHAVEN, GM (0.7km), 1995–2024. 30 years of May data.