October in Ōmihachiman averages a daily high of 22°C. Expect roughly 9.7 wet days totalling 138.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Ōmihachiman is May–June.
Based on HIKONE, JA (22.1km), 1995–2024. 28 years of October data.