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June in Iwamizawa averages a daily high of 22°C. Expect roughly 10.1 wet days totalling 85.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Iwamizawa is June–September.
Based on IWAMIZAWA, JA (2.6km), 1995–2024. 27 years of June data.
See all twelve months for Iwamizawa →