Atlanta · December
Run in the morning.
Cool month: average high 56°F, low 41°F. Humidity averages 76% — the limiting factor on most runs. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
56° / 41°F
Humidity
76%
Rain days
14/mo
Wind
12 mph
What December feels like in Atlanta
Sunrise
08:35
Mid-month average
Sunset
18:31
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 Atlanta in December
The kit for December in Atlanta: 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
-6° avg high
+4 rain days
Atlanta in November →
December
56°F avg high
14 rain days
Best: morning
vs January
+5° avg high
+1 rain days
Atlanta in January →
Frequently Asked Questions
What is the best time of day to run in Atlanta in December?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Atlanta in December?+
Average high 56°F, average low 41°F.
How does December compare to surrounding months in Atlanta?+
Compared to November (avg high 62°F), December is cooler. Compared to January (avg high 52°F), December is warmer.
Does it rain often in Atlanta in December?+
Expect about 14 measurable rain days in December, on average.