Edmonton weather in September
September in Edmonton: nice, dry, with clean air — one of the best months to visit.
#2 of 12 months in Edmonton · #89 of 604 destinations to visit in September · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Edmonton climate normals — September
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 25 mm / 1 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 64% | 💧 humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 12.7 h | |
| Wind | 19 km/h / 12 mph | |
| Snowfall | 0.1 cm / 0 in | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Edmonton in September — FAQ
- Is September a good time to visit Edmonton?
- September in Edmonton: nice, dry, with clean air — one of the best months to visit. It ranks #2 of 12 months for Edmonton on SeasonMap's comfort score (89/100).
- What is the weather like in Edmonton in September?
- In September, Edmonton averages a daily high of 19.1°C and a low of 9°C, with about 24.6 mm of rain over roughly 5.2 rainy days.
- What is the air quality in Edmonton in September?
- Edmonton has a mean US Air Quality Index of about 49 in September.