Will I be cold?
Will I be cold in San Jose in October?
Verdict
Maybe — Chilly at times.
Lows near 53°F — cool mornings and evenings, comfortable afternoons.
Day vs. night
Day
76°F
Warm
Breathable fabrics; sunscreen matters more than a jacket.
Night
53°F
Cool
You'll want a warm layer after sunset — not a heavy coat.
Why
San Jose in October averages highs of 76°F, lows of 53°F, 3 rainy days.
Layering wins here. A packable puffer plus a base layer handles the cool end without overheating in the middle of the day.
See a full outfit plan for chilly evenings →
San Jose in October outfit ideas from ForecastStyle.