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April in Isahaya averages a daily high of 19.8°C. Expect roughly 10 wet days totalling 157.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Isahaya is April–May.
Based on NAGASAKI, JA (20.5km), 1995–2024. 23 years of April data.
See all twelve months for Isahaya →