Pack or skip
Winter coat for San Diego in January
Verdict
Optional
Lows around 49°F — a packable puffer covers the cold mornings.
Why
San Diego in January averages highs of 66°F, lows of 49°F, 6 rainy days.
That climate makes a winter coat a judgment call. Lows around 49°F — a packable puffer covers the cold mornings.