June in Sydney averages a daily high of 18.3°C with nights around 10°C. Expect roughly 11.2 wet days totalling 142.9mm. Generally workable, with some weather to plan around.
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 June data.