Historic Murphy Avenue in downtown Sunnyvale

Weather · August

Sunnyvale weather in August

Average highs of 77°F, lows of 59°F and 0.00 in of rain, from 30 years of weather records.

August is Sunnyvale’s 3rd warmest month, with average highs of 77°F and lows of 59°F. That is about the same as July, and 8° above the yearly average high.

Average high
77°F
Average low
59°F
Precipitation
0.00 in
Wet days
0
Sunrise · sunset
6:24 AM · 8:01 PM

August 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 August

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.

August is good for

Around Sunnyvale

Saturday at Sunnyvale
Saturday at Sunnyvale (2)Vadim Manuylov · CC BY-SA 3.0
John W. Christian Greenbelt, Sunnyvale
John W. Christian GreenbeltVoidvector · CC BY-SA 4.0
East side Pear Ave, Sunnyvale
East side Pear Ave, SunnyvaleYngvadottir · CC BY-SA 4.0

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 ↗

August compared with the months around it

MonthHighLowRain
July77°F59°F0.00 in
August77°F59°F0.00 in
September78°F57°F0.10 in

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

Questions

How hot does it get in Sunnyvale in August?

Average highs are 77°F and average lows 59°F, for a daily mean of 68°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Sunnyvale in August?

August averages 0.00 in of precipitation over about 0 days with at least 0.01 in. It is the 12th wettest month of the year.

What time is sunset in Sunnyvale in August?

Around mid-August the sun rises about 6:24 AM and sets about 8:01 PM, for roughly 13.6 hours of daylight.

Is August a good time to visit Sunnyvale?

Yes. August is one of the mildest months, with highs between 65°F and 85°F and little rain.

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

Sunnyvale AI

Your Sunnyvale local guide
Hey there!

I'm Sunnyvale AI. Ask about neighborhood food, independent shops, local history or planning a visit.

AI recommendations may be inaccurate. Verify hours and prices. Questions are processed by Cloudflare. Privacy