When to go · San Jose, California
San Jose, California in September
Great month. Inside San Jose, California's best window: Apr–Jun, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 28°C (82°F)82°F (28°C) / 14°C (57°F)57°F (14°C)
- average high / low
- Rain days
- 1
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside San Jose, California's best window: Apr–Jun, Sep–Oct.
Is another month better than September?
No other month rates higher than September for San Jose, California in this guide.
Weather in September
- San Jose, CaliforniaHighs around 28 °C (82 °F), lows around 14 °C (57 °F), rain on about 1 dayHighs around 82 °F (28 °C), lows around 57 °F (14 °C), rain on about 1 day
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
Compare two months
Weather, crowds and prices for any two months in San Jose, California, side by side.
Verdict
Sep: Great
Apr: Great
Daytime high
Sep: 28 °C (82 °F)82 °F (28 °C)
Apr: 21 °C (70 °F)70 °F (21 °C)
Night low
Sep: 14 °C (57 °F)57 °F (14 °C)
Apr: 9 °C (48 °F)48 °F (9 °C)
Rain days
Sep: 1 (better)
Apr: 5
Crowds
Sep: Medium
Apr: Medium
Prices
Sep: Medium
Apr: Medium
Festivals listed
Sep: 1
Apr: 1
September: Inside San Jose, California's best window: Apr–Jun, Sep–Oct.
April: Inside San Jose, California's best window: Apr–Jun, Sep–Oct.
San Jose, California: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.