May in Den Helder averages a daily high of 15.9°C with nights around 9°C. Expect roughly 11.1 wet days totalling 48.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Den Helder is June–September.
Based on DEN HELDER 1, NL (3km), 1995–2024. 30 years of May data.