Temperatures in July
It's warm in July in Sunnyvale with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 15°C and 17°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Sunnyvale in July. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of July
The month of July starts in Sunnyvale with warm temperatures, averaging around 26°C during the day and nights close to 16°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-July
By mid-July, the average daytime temperature rises to around 27°C, with nights close to 16°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 July
By the end of July, the average daytime temperature in Sunnyvale will be around 28°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 July
According to weather history, there is only 0,1 mm of precipitation in July. The wind speed is around 4 Bft, mostly coming from the Northwest.
You can expect dry weather every day in July.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in July 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 July |
London | ||
|---|---|---|---|
 Average Temperature |
26°C | 23°C | |
 High Temp |
29°C | 27°C | |
| Low Temp |
25°C | 21°C | |
 Total Precipitation |
0,1 mm | 52 mm | |
| Rainy Days |
0 days | 9 days | |
June
UV index
The UV index is a maximum of 10 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 July a good time to visit Sunnyvale?
Want nice weather? Then July 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 July
With 36°C, Sunnyvale hit the highest temperature in the last 10 years in July 2017. The lowest daytime temperature in this month was 19°C in 2023. The extreme night temperatures ranged from a low of 11°C to a high of 19°C.
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Daily Temperature in July in Sunnyvale
This chart shows the average daily temperatures, both day and night, for each day in July 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 July in Sunnyvale
The chart below shows the average daily precipitation in July 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 July, you can expect it to stay dry all month in Sunnyvale.
Daily UV Index in July in Sunnyvale
This chart shows the average daily UV index in July 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 July in Sunnyvale Over the Years
This chart shows the average temperature in July in Sunnyvale, measured in degrees Celsius, over the past years.
Total Precipitation in July in Sunnyvale Over the Years
This chart shows the average precipitation in July 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 July for Sunnyvale
Click on a specific day in July 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 July 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
