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May in Hiroshima averages a daily high of 24.5°C. Expect roughly 10 wet days totalling 178.5mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hiroshima is April–May.
Based on HIROSHIMA, JA (1.6km), 1995–2024. 21 years of May data.
See all twelve months for Hiroshima →