In December, Cairns typically sees daytime highs of 29.9°C and overnight lows around 23.6°C. Compared to the annual average high of 27.5°C, December runs +2.4°C.
December in Cairns averages a daytime high of 29.9°C and an overnight low of 23.6°C.
December runs +2.4°C compared to Cairns's annual average high of 27.5°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.9°C and cooler evenings around 23.6°C.