Best Time to Run in Birmingham in December

The verdict: Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.

Birmingham · December

Run in the midday.

Cold: average high 46°F, low 38°F. Layering becomes the workout. Humidity averages 90% — the limiting factor on most runs. Expect 18 rain days — plan around the radar. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.

Avg high / low
46° / 38°F
Humidity
90%
Rain days
18/mo
Wind
15 mph

What December feels like in Birmingham

Sunrise

09:10

Mid-month average

Sunset

16:55

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 Birmingham in December

The kit for December in Birmingham: a long-sleeve or light jacket for the first mile, a wind-blocking layer for exposed routes, a water-resistant cap or jacket on standby.

Frequently Asked Questions

What is the best time of day to run in Birmingham in December?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Birmingham in December?+
Average high 46°F, average low 38°F.
How does December compare to surrounding months in Birmingham?+
Compared to November (avg high 49°F), December is cooler. Compared to January (avg high 44°F), December is warmer.
Does it rain often in Birmingham in December?+
Expect about 18 measurable rain days in December, on average.

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