In April, Ansan-si typically sees daytime highs of 15.8°C and overnight lows around 5.8°C. Compared to the annual average high of 15.9°C, April runs -0.2°C.
April in Ansan-si averages a daytime high of 15.8°C and an overnight low of 5.8°C.
April runs -0.2°C compared to Ansan-si's annual average high of 15.9°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 15.8°C and cooler evenings around 5.8°C.