The weather in August in Cupertino

It's warm in August in Cupertino with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 31°C. At night, you can expect temperatures between 16°C and 19°C.

Looking for great weather? August is a good time to be in Cupertino. The temperatures are nice, and there’s little chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Cupertino, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 39°C in 2020, Cupertino reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 21°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 24°C.

Rainfall amount

According to weather history, there is only 0,8 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the Northwest.

Daily weather in August for Cupertino

Click on any day in August to get detailed info about the usual weather on that day in Cupertino. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Cupertino New York
Average temperature 27°C 30°C
Max. temperature 31°C 31°C
Min. temperature 16°C -5°C
Total precipitation 0,8 mm 79 mm
Rainy days 1 day 13 days

Start of August

The month of August starts in Cupertino with hot temps, averaging around 27°C during the day and nights around 17°C.

Mid August

By mid-August, daytime temps rise to around 29°C, with nights around 18°C. No precipitation expected during this period, so you can enjoy plenty of sunshine.

End of August

By the end of August, the average daytime temperature in Cupertino is around 28°C, while nighttime temps are about 17°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

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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.

Check out the climate of Cupertino for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Cupertino, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Cupertino

Temperature in August in Cupertino over the years

Precipitation charts

These charts show the average amount of precipitation in August in Cupertino, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Cupertino

Total precipitation in August in Cupertino over the years

Daily UV index in August in Cupertino

This chart shows the average daily UV index in August in Cupertino, 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.

Weather experiences in August in Cupertino

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Average weather in Cupertino by month

Click on a month below to see detailed weather info for Cupertino. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.