In December, Christchurch typically sees daytime highs of 20.2°C and overnight lows around 10.5°C. Compared to the annual average high of 15.7°C, December runs +4.4°C.
December in Christchurch averages a daytime high of 20.2°C and an overnight low of 10.5°C.
December runs +4.4°C compared to Christchurch's annual average high of 15.7°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 20.2°C and cooler evenings around 10.5°C.