March in Ueda averages a daily high of 8.4°C. Expect roughly 8.9 wet days totalling 69.4mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Ueda is May–September.
Based on KARUIZAWA, JA (24.7km), 1995–2024. 28 years of March data.