Pack or skip
Winter coat for San Jose in August
Verdict
Skip it
Lows stay near 62°F — a coat is overkill.
Why
San Jose in August averages highs of 88°F, lows of 62°F, 0 rainy days.
That climate means a winter coat isn't pulling its weight. Lows stay near 62°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 Jose in August.