May in Ville-Marie averages a daily high of 19.3°C with nights around 9.6°C. Expect roughly 12.1 wet days totalling 84.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ville-Marie is May–September.
Based on MCTAVISH, QC CA (1km), 1995–2024. 27 years of May data.