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April in Saku averages a daily high of 14.5°C. Expect roughly 10.3 wet days totalling 90.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Saku is May–September.
Based on KARUIZAWA, JA (16km), 1995–2024. 27 years of April data.
See all twelve months for Saku →