Temperatures in August
It's warm in August in Sunnyvale with an average temperature of 27°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 16°C and 18°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Sunnyvale in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Sunnyvale with warm temperatures, averaging around 26°C during the day and nights close to 17°C. You won’t see any precipitation in the first days of the month, it’s all sunny skies.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-August
By mid-August, the average daytime temperature rises to around 28°C, with nights close to 18°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.
Temperatures vary between day and night, so it’s smart to wear layers.
End of August
By the end of August, the average daytime temperature in Sunnyvale will be around 27°C, with nights close to 17°C. No precipitation expected, with plenty of sunshine on the horizon.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in August
According to weather history, there is only 0,2 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the Northwest.
You can expect dry weather every day in August.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Sunnyvale. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Sunnyvale in August |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 22°C | |
 High Temp |
29°C | 24°C | |
| Low Temp |
25°C | 19°C | |
 Total Precipitation |
0,2 mm | 60 mm | |
| Rainy Days |
0 days | 10 days | |
July
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Sunnyvale?
Want nice weather? Then August is a great time to be in Sunnyvale. You’ll have pleasant temperatures and little chance of rain this month.
Temperature records for Sunnyvale in August
With 39°C, Sunnyvale hit the highest temperature in the last 10 years in August 2020. The lowest daytime temperature in this month was 21°C in 2021. The extreme night temperatures ranged from a low of 13°C to a high of 24°C.
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Daily Temperature in August in Sunnyvale
This chart shows the average daily temperatures, both day and night, for each day in August in Sunnyvale, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Sunnyvale
The chart below shows the average daily precipitation in August for Sunnyvale, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect it to stay dry all month in Sunnyvale.
Daily UV Index in August in Sunnyvale
This chart shows the average daily UV index in August in Sunnyvale, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Sunnyvale Over the Years
This chart shows the average temperature in August in Sunnyvale, measured in degrees Celsius, over the past years.
Total Precipitation in August in Sunnyvale Over the Years
This chart shows the average precipitation in August in Sunnyvale, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Sunnyvale
Click on a specific day in August for detailed info on the typical weather on that day in Sunnyvale. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Sunnyvale
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Average Weather in Sunnyvale by Month
Click on a month below to see detailed weather info for Sunnyvale. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sunnyvale for all months at once
