August in Hannover averages a daily high of 23.9°C with nights around 13.2°C. Expect roughly 12.6 wet days totalling 64.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hannover is May–September.
Based on HANNOVER, GM (11.2km), 1995–2024. 30 years of August data.