March in Ōtawara averages a daily high of 10.4°C. Expect roughly 9.4 wet days totalling 88.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Ōtawara is May–June.
Based on SHIRAKAWA, JA (33.8km), 1995–2024. 27 years of March data.