January in Honmachi averages a daily high of 10.4°C. Expect roughly 8.2 wet days totalling 65.4mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Honmachi is April–May.
Based on HITOYOSHI, JA (34.9km), 1995–2024. 29 years of January data.