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August in Oyama averages a daily high of 31.3°C. Expect roughly 13.2 wet days totalling 184mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Oyama is April–June.
Based on UTSUNOMIYA, JA (28.4km), 1995–2024. 24 years of August data.
See all twelve months for Oyama →