January in Ōtsu averages a daily high of 9.1°C. Expect roughly 7.8 wet days totalling 46.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Ōtsu is April–May.
Based on KYOTO, JA (12.3km), 1995–2024. 27 years of January data.