San Antonio · January
Run in the morning.
Cool month: average high 63°F, low 44°F. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
63° / 44°F
Humidity
64%
Rain days
11/mo
Wind
12 mph
What January feels like in San Antonio
Sunrise
08:28
Mid-month average
Sunset
18:58
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
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 San Antonio in January
The kit for January in San Antonio: a long-sleeve or light jacket for the first mile.
January vs the surrounding months
vs December
-2° avg high
0 rain days
San Antonio in December →
January
63°F avg high
11 rain days
Best: morning
vs February
-4° avg high
0 rain days
San Antonio in February →
Frequently Asked Questions
What is the best time of day to run in San Antonio in January?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in San Antonio in January?+
Average high 63°F, average low 44°F.
How does January compare to surrounding months in San Antonio?+
Compared to December (avg high 66°F), January is cooler. Compared to February (avg high 67°F), January is cooler.
Does it rain often in San Antonio in January?+
Expect about 11 measurable rain days in January, on average.