Historic Murphy Avenue in downtown Sunnyvale

Weather · October

Sunnyvale weather in October

Average highs of 74°F, lows of 53°F and 0.60 in of rain, from 30 years of weather records.

October is Sunnyvale’s 5th warmest month, with average highs of 74°F and lows of 53°F. That is 4° cooler than September, and 5° above the yearly average high.

Average high
74°F
Average low
53°F
Precipitation
0.60 in
Wet days
4
Sunrise · sunset
7:15 AM · 6:31 PM

October across the year

  1. 59°42°Jan
  2. 62°45°Feb
  3. 65°47°Mar
  4. 68°49°Apr
  5. 72°53°May
  6. 76°56°Jun
  7. 77°59°Jul
  8. 77°59°Aug
  9. 78°57°Sep
  10. 74°53°Oct
  11. 66°46°Nov
  12. 59°42°Dec

High and low Rain

What to wear in October

  • Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.

October is good for

What’s on in Sunnyvale in October

See all upcoming events and school days off.

Around Sunnyvale

Sunnyvale photograph by office
Sunnyvale CAoffice · CC BY-SA 3.0
Baylands Park Road Entrance, Sunnyvale
Baylands Park Road EntranceBrokenSegue · CC BY-SA 4.0
Murphy street, Sunnyvale
Murphy street (6893400005)Ed Schipul from Houston, TX, US · CC BY 2.0

See Sunnyvale

A look around town before you go.

Exploring Downtown Sunnyvale with my fiancé’s cousin 🤗 video thumbnail

THINGS TO DO · YOUTUBE SHORT

Exploring Downtown Sunnyvale with my fiancé’s cousin 🤗

A local activity Short shared by Belugabee.

Watch on YouTube ↗

October compared with the months around it

MonthHighLowRain
September78°F57°F0.10 in
October74°F53°F0.60 in
November66°F46°F1.4 in

Planning a trip? See the best time to visit Sunnyvale and today’s forecast.

Questions

How hot does it get in Sunnyvale in October?

Average highs are 74°F and average lows 53°F, for a daily mean of 64°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Sunnyvale in October?

October averages 0.60 in of precipitation over about 4 days with at least 0.01 in. It is the 7th wettest month of the year.

What time is sunset in Sunnyvale in October?

Around mid-October the sun rises about 7:15 AM and sets about 6:31 PM, for roughly 11.3 hours of daylight.

Is October a good time to visit Sunnyvale?

The mildest months for visiting are June, July, August. October is mild, with Halloween events.

NOAA U.S. Climate Normals 1991–2020, Moffett Federal Airfield station (2.5 mi from downtown). Sunrise and sunset are calculated for October 15 at the city’s coordinates.

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