In December, Tosu typically sees daytime highs of 11.5°C and overnight lows around 1.9°C. Compared to the annual average high of 20.2°C, December runs -8.7°C.
December in Tosu averages a daytime high of 11.5°C and an overnight low of 1.9°C.
December runs -8.7°C compared to Tosu's annual average high of 20.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 11.5°C and cooler evenings around 1.9°C.