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 a moderately hot summer month, with average temperature varying between 82.8°F (28.2°C) and 54.1°F (12.3°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). The average low-temperature,, is 54.1°F (12.3°C).

Heat index

The average heat index in July is calculated to be 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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, metabolic differences, wind). 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 particularly important for children. 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

The average relative humidity in Sonoma is 62%.

Rainfall

Months with the least rainfall in Sonoma are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

Daylight

In July, the average length of the day is 14.5h.

Sunshine

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

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the temperature in July in Sonoma?

In July, in Sonoma, California, 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. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is calculated to be 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?

Months with the least rainfall in Sonoma, California, are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

How many days does it rain in July in Sonoma?

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

How many hours of daylight does Sonoma have in July?

In July, the average length of the day in Sonoma, California, is 14.5h.

What month has the most sunshine in Sonoma?

July has the most sunshine of the year, with an average of 12h of sunshine.

How long on average sun shines in July in Sonoma?

In Sonoma, California, the average sunshine in July is 12h.

When is the highest UV index in Sonoma?

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

What is the UV index reading in July in Sonoma?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.

Average temperature in July
Sonoma, CA

Average temperature in July - Sonoma, CA
  • Average high temperature in July: 28.2°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is December (12.8°C).

  • Average low temperature in July: 12.3°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is December (5.2°C).

[Resources]

Average pressure in July
Sonoma, CA

Average pressure in July - Sonoma, CA
  • Average pressure in July: 1013.3mbar

The month with the highest atmospheric pressure is January (1020.4mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

[Resources]

Average wind speed in July
Sonoma, CA

Average wind speed in July - Sonoma, CA
  • Average wind speed in July: 8.6km/h

The windiest month (with the highest average wind speed) is May (10km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).

[Resources]

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%).

[Resources]

Average rainfall in July
Sonoma, CA

Average rainfall in July - Sonoma, CA
  • Average rainfall in July: 1mm

The wettest month (with the highest rainfall) is February (87mm).
The driest months (with the least rainfall) are July and August (1mm).

[Resources]

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).

[Resources]

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

Average daylight in July / Average sunshine in July - Sonoma, CA
  • Average daylight in July: 14.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • 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).

[Resources]

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).

[Resources]

Average UV index in July
Sonoma, CA

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

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

[Resources]

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).

[Resources]

Average visibility in July
Sonoma, CA

Average visibility in July - Sonoma, CA
  • Average visibility in July: 10km

Months with the highest visibility are June, July and September (10km).
Months with the lowest visibility are January, February, March, April, May, August, October, November and December (9km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location