In January, Yeosu typically sees daytime highs of 5.2°C and overnight lows around -4.2°C. Compared to the annual average high of 18.4°C, January runs -13.1°C.
January in Yeosu averages a daytime high of 5.2°C and an overnight low of -4.2°C.
January runs -13.1°C compared to Yeosu's annual average high of 18.4°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 5.2°C and cooler evenings around -4.2°C.