Pack or skip
Sunglasses for San Francisco in January
Verdict
Pack it
Highs around 57°F — plenty of daylight glare.
Why
San Francisco in January averages highs of 57°F, lows of 46°F, 11 rainy days.
That climate means sunglasses earns its space in the bag. Highs around 57°F — plenty of daylight glare.