January in Kaech’ŏn averages a daily high of -0.7°C with nights around -10°C. Expect roughly 8 wet days totalling 12.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kaech’ŏn is April–May.
Based on PYONGYANG INTERNATIONAL, KN (56.4km), 1995–2024. 24 years of January data.