March in Hyesan averages a daily high of 4.4°C with nights around -9.6°C. Expect roughly 14 wet days totalling 17.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Hyesan is May.
Based on HYESAN, KN (0.9km), 1995–2024. 22 years of March data.