August in Himimachi averages a daily high of 31.3°C. Expect roughly 11.4 wet days totalling 233.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Himimachi is May–June.
Based on FUSHIKI, JA (8.3km), 1995–2024. 25 years of August data.