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April in Nagano averages a daily high of 17.5°C. Expect roughly 10.5 wet days totalling 67.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nagano is May–June.
Based on NAGANO, JA (2.4km), 1995–2024. 22 years of April data.
See all twelve months for Nagano →