In September, Hwaseong-si typically sees daytime highs of 25.1°C and overnight lows around 16.2°C. Compared to the annual average high of 16.2°C, September runs +8.9°C.
September in Hwaseong-si averages a daytime high of 25.1°C and an overnight low of 16.2°C.
September runs +8.9°C compared to Hwaseong-si's annual average high of 16.2°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 25.1°C and cooler evenings around 16.2°C.