May in Kelowna averages a daily high of 20.2°C with nights around 8.8°C. Expect roughly 11.4 wet days totalling 40.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kelowna is May–September.
Based on OKANAGAN CENTRE, BC CA (18.7km), 1995–2024. 26 years of May data.