August in Bremerhaven averages a daily high of 22.3°C with nights around 15.2°C. Expect roughly 14.3 wet days totalling 79mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bremerhaven is May–September.
Based on BREMERHAVEN, GM (2.1km), 1995–2024. 30 years of August data.