July in Sunch’ŏn averages a daily high of 29°C with nights around 20.9°C. Expect roughly 16 wet days totalling 283.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sunch’ŏn is April–May.
Based on PYONGYANG INTERNATIONAL, KN (32.3km), 1995–2024. 23 years of July data.