September in Arashiyama averages a daily high of 29.3°C. Expect roughly 11.2 wet days totalling 194.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Arashiyama is April–May.
Based on KYOTO, JA (5.1km), 1995–2024. 25 years of September data.