April in Bremen averages a daily high of 14.4°C with nights around 3.9°C. Expect roughly 11 wet days totalling 39.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bremen is May–September.
Based on BREMEN SEEFAHRTSCHULE, GM (3.3km), 1995–2024. 30 years of April data.