In August, Jeju City typically sees daytime highs of 29.4°C and overnight lows around 23.7°C. Compared to the annual average high of 18.2°C, August runs +11.2°C.
August in Jeju City averages a daytime high of 29.4°C and an overnight low of 23.7°C.
August runs +11.2°C compared to Jeju City's annual average high of 18.2°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 29.4°C and cooler evenings around 23.7°C.