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June in Koga averages a daily high of 27.6°C. Expect roughly 13.4 wet days totalling 150.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Koga is April–May.
Based on KUMAGAYA, JA (30.2km), 1995–2024. 27 years of June data.
See all twelve months for Koga →