Calgary · September
Run in the morning.
Cool month: average high 63°F, low 43°F. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
63° / 43°F
Humidity
65%
Rain days
11/mo
Wind
10 mph
What September feels like in Calgary
Sunrise
07:12
Mid-month average
Sunset
19:49
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Calgary in September
The kit for September in Calgary: a long-sleeve or light jacket for the first mile.
September vs the surrounding months
vs August
-10° avg high
-2 rain days
Calgary in August →
September
63°F avg high
11 rain days
Best: morning
vs October
+12° avg high
+1 rain days
Calgary in October →
Frequently Asked Questions
What is the best time of day to run in Calgary in September?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Calgary in September?+
Average high 63°F, average low 43°F.
How does September compare to surrounding months in Calgary?+
Compared to August (avg high 74°F), September is cooler. Compared to October (avg high 51°F), September is warmer.
Does it rain often in Calgary in September?+
Expect about 11 measurable rain days in September, on average.