August in Changbai averages a daily high of 26.9°C with nights around 13.9°C. Expect roughly 13 wet days totalling 67.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Changbai is May.
Based on HYESAN, KN (3.1km), 1995–2024. 18 years of August data.