September in Miyakonojō averages a daily high of 29.6°C. Expect roughly 14.4 wet days totalling 336.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Miyakonojō is April–May.
Based on MIYAKONOJO, JA (1.5km), 1995–2024. 26 years of September data.