May in Regina averages a daily high of 17.7°C with nights around 3.1°C. Expect roughly 10.1 wet days totalling 50.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Regina is July–September.
Based on REGINA INTERNATIONAL A, SK CA (3.9km), 1995–2024. 19 years of May data.