August in Dalian averages a daily high of 27.5°C with nights around 22°C. Expect roughly 9.2 wet days totalling 160.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Dalian is May–June.
Based on DALIAN, CH (3km), 1995–2024. 18 years of August data.