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Osan in August

August in Osan averages a daily high of 29.9°C. Expect roughly 15.3 wet days totalling 548.5mm. Generally workable, with some weather to plan around.

Across the year, the best time to visit Osan is June.

Based on SEOUL CITY, KS (47km), 1995–2024. 22 years of August data.

See all twelve months for Osan →