August in Miyazaki averages a daily high of 31.8°C. Expect roughly 13.7 wet days totalling 323.4mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Miyazaki is April–May.
Based on MIYAZAKI, JA (1.8km), 1995–2024. 22 years of August data.