July in Hamamatsu averages a daily high of 30.4°C. Expect roughly 11.6 wet days totalling 237.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Hamamatsu is April–June.
Based on HAMAMATSU, JA (2.4km), 1995–2024. 29 years of July data.