Will I be cold?
Will I be cold in San Antonio in December?
Verdict
Maybe — Chilly at times.
Lows near 41°F — cool mornings and evenings, comfortable afternoons.
Day vs. night
Day
63°F
Comfortable
A T-shirt and a light overshirt is enough.
Night
41°F
Cold
Cold enough that a hat and gloves become mandatory.
Why
San Antonio in December averages highs of 63°F, lows of 41°F, 7 rainy days.
Layering wins here. A packable puffer plus a base layer handles the cool end without overheating in the middle of the day.
See a full outfit plan for chilly evenings →
San Antonio in December outfit ideas from ForecastStyle.
Nearby months
Packing pointers
Best shoes
Boots & insulated picks for San Antonio in December →