In December, Isesaki typically sees daytime highs of 11.0°C and overnight lows around 0.6°C. Compared to the annual average high of 18.8°C, December runs -7.7°C.
December in Isesaki averages a daytime high of 11.0°C and an overnight low of 0.6°C.
December runs -7.7°C compared to Isesaki's annual average high of 18.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 11.0°C and cooler evenings around 0.6°C.