Pack or skip
Winter coat for San Francisco in October
Verdict
Skip it
Lows stay near 55°F — a coat is overkill.
Why
San Francisco in October averages highs of 68°F, lows of 55°F, 5 rainy days.
That climate means a winter coat isn't pulling its weight. Lows stay near 55°F — a coat is overkill.
What to bring instead
Consider packable down jacket instead →
See the pack-or-skip verdict for packable down jacket in San Francisco in October.