January in Shimodate averages a daily high of 8.8°C. Expect roughly 3.2 wet days totalling 27.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Shimodate is April–June.
Based on UTSUNOMIYA, JA (29.7km), 1995–2024. 27 years of January data.