In December, Toyokawa typically sees daytime highs of 10.7°C and overnight lows around 2.0°C. Compared to the annual average high of 19.1°C, December runs -8.4°C.
December in Toyokawa averages a daytime high of 10.7°C and an overnight low of 2.0°C.
December runs -8.4°C compared to Toyokawa's annual average high of 19.1°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 10.7°C and cooler evenings around 2.0°C.