July weather forecast
Cupertino, CA

Weather in July

July, the same as June, is a moderately hot summer month in Cupertino, California, with average temperature varying between 55°F (12.8°C) and 79.3°F (26.3°C).

Temperature

The warmest month is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 55°F (12.8°C).

Humidity

July, September and October, with an average relative humidity of 64%, are the least humid months in Cupertino.

Rainfall

July and August are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

In July, the average length of the day in Cupertino is 14.4h.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine in Cupertino.

UV index

In July, the average daily maximum UV index in Cupertino is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 in July transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in Cupertino?

With an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 55°F (12.8°C), July is the warmest month in Cupertino.

What are the least humid months in Cupertino?

July, September and October, with an average relative humidity of 64%, are the least humid months.

What is the average humidity in July in Cupertino?

The average relative humidity in July is 64%.

What is the driest month in Cupertino?

July and August are months with the least rain in Cupertino, California, when the rain falls for 1.3 days and typically aggregates up to 0.04" (1mm) of rain.

How many days does it rain in July in Cupertino?

In Cupertino, California, in July, it is raining for 1.3 days, with typically 0.04" (1mm) of accumulated precipitation.

What is the average length of the day in July in Cupertino?

In July, the average length of the day in Cupertino, California, is 14.4h.

What is the month with the most sunshine in Cupertino?

July and August, with an average of 12h of sunshine, are months with the most sunshine in Cupertino.

How many hours of sunshine does Cupertino have in July?

The average sunshine in July in Cupertino is 12h.

What is the UV index reading in July in Cupertino?

The average daily maximum UV index in July in Cupertino, California, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in July
Cupertino, CA

Average temperature in July - Cupertino, CA
  • Average high temperature in July: 79.3°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in July: 55°F

The month with the highest average low temperature is August (56.1°F).
The coldest months (with the lowest average low temperature) are February and March (44.2°F).

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Average pressure in July
Cupertino, CA

Average pressure in July - Cupertino, CA
  • Average pressure in July: 29.93"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.92").

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Average wind speed in July
Cupertino, CA

Average wind speed in July - Cupertino, CA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).

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Average humidity in July
Cupertino, CA

Average humidity in July - Cupertino, CA
  • Average humidity in July: 64%

The month with the highest relative humidity is March (74%).
Months with the lowest relative humidity are July, September and October (64%).

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Average rainfall in July
Cupertino, CA

Average rainfall in July - Cupertino, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is February (1.02").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in July
Cupertino, CA

Average rainfall days in July - Cupertino, CA
  • Average rainfall days in July: 1.3 days

The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in July /
Average sunshine in July
Cupertino, CA

Average daylight in July / Average sunshine in July - Cupertino, CA
  • Average daylight in July: 14.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in July: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days in July
Cupertino, CA

Average sunshine days in July - Cupertino, CA
  • Average sunshine days in July: 28.3 days

The month with the most sunshine days is August (28.5 days).
Months with the least sunshine days are February and March (20.8 days).

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Average UV index in July
Cupertino, CA

Average UV index in July - Cupertino, CA
  • Average UV index in July: 5

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in July
Cupertino, CA

Average cloud cover in July - Cupertino, CA
  • Average cloud cover in July: 7

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in July
Cupertino, CA

Average visibility in July - Cupertino, CA
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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