December in Arashiyama averages a daily high of 11.7°C. Expect roughly 8.3 wet days totalling 62.4mm. 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 December data.