August in Sydney averages a daily high of 23.2°C with nights around 13.5°C. Expect roughly 11.7 wet days totalling 100.7mm. Comfortable conditions for being outdoors all day.
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 August data.