In June, Seongnam-si typically sees daytime highs of 26.0°C and overnight lows around 16.3°C. Compared to the annual average high of 16.1°C, June runs +10.0°C.
June in Seongnam-si averages a daytime high of 26.0°C and an overnight low of 16.3°C.
June runs +10.0°C compared to Seongnam-si's annual average high of 16.1°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.0°C and cooler evenings around 16.3°C.