July weather forecast
Sonoma, CA

Neat rows of vines in a vineyard farm in Sonoma, California
Neat rows of vines in a vineyard farm in Sonoma, California

Weather in July

July, like June, in Sonoma, California, is another warm summer month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 82.8°F (28.2°C).

Temperature

In Sonoma, the average high-temperature in July is relatively the same as in June - a still warm 82.8°F (28.2°C). In Sonoma, the average low-temperature is 54.1°F (12.3°C).

Heat index

The average heat index in July is estimated at 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, wind, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Sonoma, the average relative humidity in July is 62%.

Rainfall

July and August are months with the least rain in Sonoma 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 Sonoma is 14h and 31min.
On the first day of July, sunrise is at 5:50 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:20 pm PDT.

Sunshine

With an average of 12h of sunshine, July has the most sunshine of the year in Sonoma, California.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in July in Sonoma?

In Sonoma, in July, the average high-temperature is 82.8°F (28.2°C), and the average low-temperature is 54.1°F (12.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in July is estimated at 86°F (30°C).

What is the average humidity in July in Sonoma?

The average relative humidity in July is 62%.

What is the driest month in Sonoma?

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

How much does it rain in Sonoma in July?

In Sonoma, California, during July, the rain falls for 1.3 days and regularly aggregates up to 0.04" (1mm) of precipitation.

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

In July, the average day length in Sonoma, California, is 14h and 31min.

When is the sunrise / sunset in July in Sonoma?

In July, on the first day of the month, sunrise is at 5:50 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:20 pm PDT.

What month has the most sunshine in Sonoma?

The month with the most sunshine in Sonoma is July, with an average of 12h of sunshine.

How many hours of sunshine does Sonoma have in July?

The average sunshine duration in July is 12h.

When is the highest UV index in Sonoma?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in July in Sonoma?

In July, the average daily maximum UV index in Sonoma, California, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in July
Sonoma, CA

Average temperature in July - Sonoma, CA
  • Average high temperature in July: 82.8°F

The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in July: 54.1°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in July
Sonoma, CA

Average pressure in July - Sonoma, CA
  • Average pressure in July: 29.92"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in July
Sonoma, CA

Average wind speed in July - Sonoma, CA
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

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Average humidity in July
Sonoma, CA

Average humidity in July - Sonoma, CA
  • Average humidity in July: 62%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (59%).

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Average rainfall in July
Sonoma, CA

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

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in July
Sonoma, CA

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

The month with the highest number of rainy days is March (13.4 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
Sonoma, CA

Average daylight in July / Average sunshine in July - Sonoma, CA
  • Average daylight in July: 14h and 31min

The month with the longest days is June (Average daylight: 14h and 47min).
The month with the shortest days is December (Average daylight: 9h and 33min).

  • Average sunshine in July: 12h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in July
Sonoma, CA

Average sunshine days in July - Sonoma, CA
  • Average sunshine days in July: 28.7 days

The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is March (16.1 days).

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Average UV index in July
Sonoma, CA

Average UV index in July - Sonoma, CA
  • Average UV index in July: 6

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

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Average cloud cover in July
Sonoma, CA

Average cloud cover in July - Sonoma, CA
  • Average cloud cover in July: 8

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in July
Sonoma, CA

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

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

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