October in Sydney averages a daily high of 13°C with nights around 4.8°C. Expect roughly 14.3 wet days totalling 148.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Sydney is July–September.
Based on SYDNEY A, NS CA (10.8km), 1995–2024. 19 years of October data.