In September, Cairns typically sees daytime highs of 26.1°C and overnight lows around 19.6°C. Compared to the annual average high of 27.5°C, September runs -1.4°C.
September in Cairns averages a daytime high of 26.1°C and an overnight low of 19.6°C.
September runs -1.4°C compared to Cairns's annual average high of 27.5°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 26.1°C and cooler evenings around 19.6°C.