Canmore Weather in September
September in Canmore averages 13°C (55°F) during the day and 0°C (32°F) at night. Quite a bit of snow/rainfall is typical this month, with around 70 mm (2.8 in) on average. An umbrella is a good idea.
Rainfall in Canmore in September
Based on our climate data of the past 30 years, about 10 days of snow/rain are anticipated, with 70 mm (2.8 in) on average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Canmore in September
In September, Canmore sees moderate temperatures, with highs of 13°C (55°F). Nights drop to around 0°C (32°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 0°C (32°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.
Sunshine in Canmore in September
The area enjoys a balanced 172 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Canmore's climate page.
Canmore Temperature in September
Min Temperature
0°C (32°F)
Max Temperature
13°C (55°F)
Chance of Rain
33%
Precipitation
70 mm (2.8 in)
Rainy days
10 days
Humidity
43% *
Sunshine
172 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Canmore typically drop from around 18°C (64°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°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 Canmore in September
Browse day-by-day weather records for Canmore spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Canmore historical weather extremes in September
Our historical data for Canmore spans 1976 to 2025, revealing these weather extremes.
- Canmore recorded its highest September temperature of 31°C (88°F) on September 7, 2017.
- The lowest overnight temperature recorded in September was -11°C (12°F) (September 27, 1984).
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
pleasant
tolerable
unpleasant
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What to Wear in Canmore in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Canmore 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 Canmore's climate page.
Temperature Rainfall Sunshine Humidity
See the full Canmore climate overview or explore weather in Canada.
