In December, Nanto-shi typically sees daytime highs of 7.8°C and overnight lows around 1.1°C. Compared to the annual average high of 17.5°C, December runs -9.7°C.
December in Nanto-shi averages a daytime high of 7.8°C and an overnight low of 1.1°C.
December runs -9.7°C compared to Nanto-shi's annual average high of 17.5°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 7.8°C and cooler evenings around 1.1°C.