In October, Ansan-si typically sees daytime highs of 19.1°C and overnight lows around 8.5°C. Compared to the annual average high of 15.9°C, October runs +3.2°C.
October in Ansan-si averages a daytime high of 19.1°C and an overnight low of 8.5°C.
October runs +3.2°C compared to Ansan-si's annual average high of 15.9°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 8.5°C.