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August in Saku averages a daily high of 26.6°C. Expect roughly 13.1 wet days totalling 148.5mm. 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. 24 years of August data.
See all twelve months for Saku →