January in Minamiarupusu 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 Minamiarupusu is April–May.
Based on KOFU, JA (10.1km), 1995–2024. 28 years of January data.