May in Pakenham averages a daily high of 16.5°C with nights around 8.5°C. Expect roughly 13.9 wet days totalling 69mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Pakenham is November–March.
Based on CRANBOURNE BOTANIC GARDENS, AS (19.8km), 1995–2024. 24 years of May data.