Houston · December
Run in the morning.
Cool month: average high 66°F, low 50°F. Humidity averages 77% — the limiting factor on most runs. Expect 15 rain days — plan around the radar. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
66° / 50°F
Humidity
77%
Rain days
15/mo
Wind
13 mph
What December feels like in Houston
Sunrise
08:09
Mid-month average
Sunset
18:25
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 Houston in December
The kit for December in Houston: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
December vs the surrounding months
vs November
-4° avg high
+2 rain days
Houston in November →
December
66°F avg high
15 rain days
Best: morning
vs January
+4° avg high
+2 rain days
Houston in January →
Frequently Asked Questions
What is the best time of day to run in Houston in December?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Houston in December?+
Average high 66°F, average low 50°F.
How does December compare to surrounding months in Houston?+
Compared to November (avg high 71°F), December is cooler. Compared to January (avg high 62°F), December is warmer.
Does it rain often in Houston in December?+
Expect about 15 measurable rain days in December, on average.