March in Samch’ŏn averages a daily high of 9.7°C with nights around 0.6°C. Expect roughly 5 wet days totalling 32.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Samch’ŏn is September–October.
Based on HAEJU, KN (48.9km), 1995–2024. 23 years of March data.