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Weather in Sunnyvale for August 2025

Your guide to Sunnyvale weather in August - trends and predictions
  • In general, the average temperature in Sunnyvale at the beginning of August is 30 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 30.6 °F by the end of August.

  • Precipitation in Sunnyvale during August is a rare event, with an average of fewer than 2 rainy days.

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Average dry days
30
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/15°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
59 %
Avg humidity

Sunnyvale in August average weather

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Temperatures trend during August in Sunnyvale

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
Aug. 1 Overcast
Overcast
27° /14° 0 mm 7
Aug. 2 Patchy rain possible
Patchy rain possible
28° /13° 0.1 mm 7
Aug. 3 Overcast
Overcast
28° /14° 0 mm 7
Aug. 4 Overcast
Overcast
29° /14° 0 mm 7
Aug. 5 Overcast
Overcast
31° /13° 0 mm 8
Aug. 6 Partly cloudy
Partly cloudy
34° /15° 0 mm 8
Aug. 7 Partly cloudy
Partly cloudy
33° /16° 0 mm 8
Aug. 8 Patchy rain possible
Patchy rain possible
27° /14° 0.1 mm 7
Aug. 9 Patchy rain possible
Patchy rain possible
29° /14° 0.1 mm 7
Aug. 10 Overcast
Overcast
28° /14° 0 mm 7
Aug. 11 Partly cloudy
Partly cloudy
27° /14° 0 mm 7
Aug. 12 Partly cloudy
Partly cloudy
29° /14° 0 mm 8
Aug. 13 Partly cloudy
Partly cloudy
30° /14° 0 mm 8
Aug. 14 Partly cloudy
Partly cloudy
31° /16° 0 mm 8
Aug. 15 Sunny
Sunny
30° /16° 0 mm 8
Aug. 16 Sunny
Sunny
31° /16° 0 mm 8
Aug. 17 Overcast
Overcast
29° /16° 0 mm 7
Aug. 18 Overcast
Overcast
27° /15° 0.1 mm 7
Aug. 19 Partly cloudy
Partly cloudy
28° /14° 0 mm 7
Aug. 20 Sunny
Sunny
29° /14° 0.1 mm 8
Aug. 21 Patchy rain possible
Patchy rain possible
27° /15° 0.4 mm 7
Aug. 22 Partly cloudy
Partly cloudy
27° /15° 0 mm 7
Aug. 23 Sunny
Sunny
28° /14° 0 mm 7
Aug. 24 Sunny
Sunny
27° /15° 0 mm 7
Aug. 25 Partly cloudy
Partly cloudy
29° /13° 0 mm 8
Aug. 26 Overcast
Overcast
31° /14° 0 mm 8
Aug. 27 Overcast
Overcast
31° /14° 0 mm 8
Aug. 28 Mist
Mist
31° /15° 0 mm 8
Aug. 29 Mist
Mist
30° /14° 0 mm 7
Aug. 30 Partly cloudy
Partly cloudy
32° /14° 0 mm 8
Aug. 31 Overcast
Overcast
30° /14° 0 mm 7
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Important Notice
Our weather forecast for Sunnyvale in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sunnyvale forecast closer to your planned date for the most up-to-date weather information.

Sunnyvale in August - FAQ

What are the expected maximum and minimum temperatures in Sunnyvale during August?
Expect warm days with temperatures around 30°, cooling to mild conditions of 15° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Sunnyvale during August?
Rainfall in Sunnyvale during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Sunnyvale during August?
The average wind speed in Sunnyvale during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Sunnyvale

Explore the daily rainfall trends and prepare for Sunnyvales August weather 💧

UV exposure in Sunnyvale during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Sunnyvale?

Get accurate weather forecasts for Sunnyvale, located at latitude 37.369 and longitude -122.036. Stay updated with localized weather information tailored for Sunnyvale.

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