Glasgow · September
Run in the morning.
Cool month: average high 61°F, low 49°F. Humidity averages 83% — the limiting factor on most runs. Expect 18 rain days — plan around the radar. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
61° / 49°F
Humidity
83%
Rain days
18/mo
Wind
12 mph
What September feels like in Glasgow
Sunrise
06:49
Mid-month average
Sunset
19:33
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
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 Glasgow in September
The kit for September in Glasgow: a long-sleeve or light jacket for the first mile, a water-resistant cap or jacket on standby.
September vs the surrounding months
vs August
-3° avg high
-5 rain days
Glasgow in August →
September
61°F avg high
18 rain days
Best: morning
vs October
+7° avg high
-3 rain days
Glasgow in October →
Frequently Asked Questions
What is the best time of day to run in Glasgow in September?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Glasgow in September?+
Average high 61°F, average low 49°F.
How does September compare to surrounding months in Glasgow?+
Compared to August (avg high 64°F), September is cooler. Compared to October (avg high 54°F), September is warmer.
Does it rain often in Glasgow in September?+
Expect about 18 measurable rain days in September, on average.