In June, Cheonan typically sees daytime highs of 27.3°C and overnight lows around 16.3°C. Compared to the annual average high of 17.0°C, June runs +10.2°C.
June in Cheonan averages a daytime high of 27.3°C and an overnight low of 16.3°C.
June runs +10.2°C compared to Cheonan's annual average high of 17.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.3°C and cooler evenings around 16.3°C.