In January, Sydney typically sees daytime highs of 26.3°C and overnight lows around 18.3°C. Compared to the annual average high of 21.9°C, January runs +4.3°C.
January in Sydney averages a daytime high of 26.3°C and an overnight low of 18.3°C.
January runs +4.3°C compared to Sydney's annual average high of 21.9°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 26.3°C and cooler evenings around 18.3°C.