September in Edmonton averages a daily high of 17.8°C with nights around 6.5°C. Expect roughly 7.4 wet days totalling 28.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Edmonton is May–September.
Based on EDMONTON MUNICIPAL CR10, AB CA (3.7km), 1995–2024. 28 years of September data.