In December, Zhangjiagang typically sees daytime highs of 9.2°C and overnight lows around 1.2°C. Compared to the annual average high of 19.4°C, December runs -10.1°C.
December in Zhangjiagang averages a daytime high of 9.2°C and an overnight low of 1.2°C.
December runs -10.1°C compared to Zhangjiagang's annual average high of 19.4°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 9.2°C and cooler evenings around 1.2°C.