Edmonton Weather in September
During September, Edmonton experiences pleasant daytime temperatures of 18°C (64°F) and cooler nights around 5°C (41°F). Some rainfall is typical during this period.
Rainfall in Edmonton in September
Typically, about 10 days will experience rainfall, with an average of 42 mm (1.7 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Edmonton in September
Daytime temperatures in Edmonton reach 18°C (64°F) in September, dropping to 5°C (41°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Edmonton in September
The days are predominantly sunny, with an estimated total of around 192 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Edmonton.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Edmonton's climate page.
Edmonton Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
18°C (64°F)
Chance of Rain
34%
Precipitation
42 mm (1.7 in)
Rainy days
10 days
Humidity
50%
Sunshine
192 hours
Percentage Sunshine
50%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Edmonton typically drop from around 19°C (66°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 9°C (48°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Edmonton in September
Browse day-by-day weather records for Edmonton spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Edmonton historical weather extremes in September
Based on weather observations in Edmonton between 1976 and 2025, these are the recorded extremes during September.
- Edmonton recorded its highest September temperature of 34°C (93°F) on September 3, 2022.
- Edmonton registered its coldest September night on September 28, 1983, with temperatures dropping to -7°C (19°F).
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Edmonton in September
For Edmonton in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Edmonton in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Edmonton's climate page.
Temperature Rainfall Sunshine Humidity
See the full Edmonton climate overview or explore weather in Canada.
