January in Takamatsu averages a daily high of 9.7°C. Expect roughly 6.8 wet days totalling 32.3mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Takamatsu is April–June.
Based on TAKAMATSU, JA (1.8km), 1995–2024. 22 years of January data.