Pack or skip
Beanie for San Antonio in January
Verdict
Pack it
Lows around 40°F — a beanie doubles the perceived warmth for zero grams.
Why
San Antonio in January averages highs of 62°F, lows of 40°F, 8 rainy days.
That climate means a beanie earns its space in the bag. Lows around 40°F — a beanie doubles the perceived warmth for zero grams.