Pack or skip
Rain jacket for San Diego in January
Verdict
Pack it
Around 6 rainy days — a shell keeps you moving between subway stops.
Why
San Diego in January averages highs of 66°F, lows of 49°F, 6 rainy days.
That climate means a rain jacket earns its space in the bag. Around 6 rainy days — a shell keeps you moving between subway stops.