Sonoma
California, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Sonoma, CA

Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
July, the same as June, is a moderately hot summer month in Sonoma, California, with average temperature fluctuating between 82.8°F (28.2°C) and 54.1°F (12.3°C).

Temperature

In July, the average high-temperature is essentially the same as in June - a still moderately hot 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 is appraised 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 the 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', 'real feel', 'apparent temperature', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like metabolic differences, wind, differences in body mass, height, and shape, 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Sonoma, the average relative humidity 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

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

Months with the highest UV index in Sonoma are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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.

What is the temperature in July in Sonoma?

The average high-temperature, in July, in Sonoma, California, is 82.8°F (28.2°C), while the average low-temperature is 54.1°F (12.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines both air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in July in Sonoma?

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

How many days does it rain in July in Sonoma?

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 driest month in Sonoma?

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

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

The average length of the day in July in Sonoma is 14.5h.

What month has the most sunshine in Sonoma?

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

How long on average sun shines in July in Sonoma?

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

What is the month with the highest UV index in Sonoma?

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

How high is the UV index in July in Sonoma?

In Sonoma, California, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
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).

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%).

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

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

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 lowest number of rainy days is August (0.8 days).

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 shortest days is December (Average daylight: 9.5h).

  • Average sunshine in July: 12h

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

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).