August in Hyesan-dong 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 Hyesan-dong is May.
Based on HYESAN, KN (1.8km), 1995–2024. 18 years of August data.