Pack or skip
Winter coat for San Jose in May
Verdict
Optional
Lows around 54°F — a packable puffer covers the cold mornings.
Why
San Jose in May averages highs of 76°F, lows of 54°F, 2 rainy days.
That climate makes a winter coat a judgment call. Lows around 54°F — a packable puffer covers the cold mornings.