In December, Wellington typically sees daytime highs of 27.6°C and overnight lows around 13.2°C. Compared to the annual average high of 22.6°C, December runs +5.0°C.
December in Wellington averages a daytime high of 27.6°C and an overnight low of 13.2°C.
December runs +5.0°C compared to Wellington's annual average high of 22.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 27.6°C and cooler evenings around 13.2°C.