In January, Katori-shi typically sees daytime highs of 8.7°C and overnight lows around -1.0°C. Compared to the annual average high of 18.8°C, January runs -10.1°C.
January in Katori-shi averages a daytime high of 8.7°C and an overnight low of -1.0°C.
January runs -10.1°C compared to Katori-shi's annual average high of 18.8°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 8.7°C and cooler evenings around -1.0°C.