January in Minami-Alps averages a daily high of 9.2°C. Expect roughly 3.8 wet days totalling 27.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Minami-Alps is April–May.
Based on KOFU, JA (9.7km), 1995–2024. 28 years of January data.