May in Melbourne averages a daily high of 29.8°C with nights around 20.8°C. Expect roughly 8.3 wet days totalling 88.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Melbourne is November–April.
Based on MELBOURNE INTERNATIONAL AIRPORT, FL US (3.2km), 1995–2024. 24 years of May data.