Santa Clara
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Santa Clara Weather in September

September is one of the excellent months to visit Santa Clara, with daytime temperatures of 27°C (81°F) and lows of 14°C (57°F) at night. Rainfall is minimal, averaging just 2.5 mm (0.1 in) for the month.

Rainfall in Santa Clara in September

Typically, you can expect about a single day of rain this month, with 2.5 mm (0.1 in) on average. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Santa Clara in September

The temperature in Santa Clara in September is excellent. Daytime highs reach 27°C (81°F), with nights dropping to 14°C (57°F). September is part of the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This is typically the warmest month of the year, so light summer clothing is a good idea.

Sunshine in Santa Clara in September

With approximately 270 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Santa Clara.

Santa Clara Temperature in September

Min Temperature
14°C (57°F)
Max Temperature
27°C (81°F)
Chance of Rain
3%
Precipitation
2.5 mm (0.1 in)
Rainy days
a single day
Humidity
73% *
Sunshine
270 hours *
Percentage Sunshine
73% *
* Data from: San Francisco, the United States of America (47 KM, 29 Miles).

Santa Clara Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Santa Clara - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Santa Clara in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Santa Clara in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Santa Clara 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

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