July in Hyesan-dong averages a daily high of 27.7°C with nights around 15.2°C. Expect roughly 16 wet days totalling 151mm. 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. 22 years of July data.