In December, Heyuan typically sees daytime highs of 19.6°C and overnight lows around 9.7°C. Compared to the annual average high of 25.8°C, December runs -6.2°C.
December in Heyuan averages a daytime high of 19.6°C and an overnight low of 9.7°C.
December runs -6.2°C compared to Heyuan's annual average high of 25.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 19.6°C and cooler evenings around 9.7°C.