July in Ōmihachiman averages a daily high of 30.6°C. Expect roughly 13.4 wet days totalling 231.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ōmihachiman is May–June.
Based on HIKONE, JA (22.1km), 1995–2024. 28 years of July data.