Pack or skip
Winter coat for San Antonio in December
Verdict
Optional
Lows around 41°F — a packable puffer covers the cold mornings.
Why
San Antonio in December averages highs of 63°F, lows of 41°F, 7 rainy days.
That climate makes a winter coat a judgment call. Lows around 41°F — a packable puffer covers the cold mornings.