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May in Nikkō averages a daily high of 15.8°C. Expect roughly 12.8 wet days totalling 172.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nikkō is June–September.
Based on NIKKO, JA (10.6km), 1995–2024. 24 years of May data.
See all twelve months for Nikkō →