In September, Christchurch typically sees daytime highs of 13.4°C and overnight lows around 4.4°C. Compared to the annual average high of 15.7°C, September runs -2.3°C.
September in Christchurch averages a daytime high of 13.4°C and an overnight low of 4.4°C.
September runs -2.3°C compared to Christchurch's annual average high of 15.7°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 13.4°C and cooler evenings around 4.4°C.