June in Perth averages a daily high of 19.5°C with nights around 8.7°C. Expect roughly 13.4 wet days totalling 126.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Perth is October–December.
Based on PERTH METRO, AS (3.8km), 1995–2024. 30 years of June data.