May in Delmenhorst averages a daily high of 18.5°C with nights around 7.5°C. Expect roughly 12 wet days totalling 51.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Delmenhorst is May–September.
Based on BREMEN SEEFAHRTSCHULE, GM (11.7km), 1995–2024. 30 years of May data.