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June in Seongnam-si averages a daily high of 27.8°C. Expect roughly 5 wet days totalling 66.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Seongnam-si is June.
Based on SEOUL CITY, KS (20.8km), 1995–2024. 22 years of June data.
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