August in Sydney averages a daily high of 19.4°C with nights around 9.7°C. Expect roughly 7 wet days totalling 81.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sydney is July–February.
Based on SYDNEY OBSERVATORY HILL, AS (0.8km), 1995–2024. 26 years of August data.