In September, Suncheon typically sees daytime highs of 26.2°C and overnight lows around 16.1°C. Compared to the annual average high of 18.2°C, September runs +8.0°C.
September in Suncheon averages a daytime high of 26.2°C and an overnight low of 16.1°C.
September runs +8.0°C compared to Suncheon's annual average high of 18.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 26.2°C and cooler evenings around 16.1°C.