September in Imabari averages a daily high of 29.2°C. Expect roughly 9.3 wet days totalling 144.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Imabari is April–May.
Based on MATSUYAMA, JA (31.6km), 1995–2024. 22 years of September data.