In January, Muroran typically sees daytime highs of -0.9°C and overnight lows around -7.9°C. Compared to the annual average high of 11.4°C, January runs -12.4°C.
January in Muroran averages a daytime high of -0.9°C and an overnight low of -7.9°C.
January runs -12.4°C compared to Muroran's annual average high of 11.4°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near -0.9°C and cooler evenings around -7.9°C.