Glasgow · December
Run in the midday.
Cold: average high 44°F, low 36°F. Layering becomes the workout. Humidity averages 90% — the limiting factor on most runs. Expect 22 rain days — plan around the radar. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
Avg high / low
44° / 36°F
Humidity
90%
Rain days
22/mo
Wind
14 mph
What December feels like in Glasgow
Sunrise
09:39
Mid-month average
Sunset
16:45
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 December
The kit for December in Glasgow: a long-sleeve or light jacket for the first mile, a water-resistant cap or jacket on standby.
December vs the surrounding months
vs November
-3° avg high
+3 rain days
Glasgow in November →
December
44°F avg high
22 rain days
Best: midday
vs January
+1° avg high
0 rain days
Glasgow in January →
Frequently Asked Questions
What is the best time of day to run in Glasgow in December?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Glasgow in December?+
Average high 44°F, average low 36°F.
How does December compare to surrounding months in Glasgow?+
Compared to November (avg high 48°F), December is cooler. Compared to January (avg high 43°F), December is warmer.
Does it rain often in Glasgow in December?+
Expect about 22 measurable rain days in December, on average.