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

July weather forecast and climate
Brentwood, CA

An aerial shot of scenic and organized home community in Brentwood City, California
An aerial shot of scenic and organized home community in Brentwood City, California
July is a hot summer month in Brentwood, California, with average temperature ranging between max 88.5°F (31.4°C) and min 56.5°F (13.6°C).

Temperature

The warmest month is July, with an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C).

Heat index

The average heat index in July is estimated at a hot 93.2°F (34°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like clothing, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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

The average relative humidity in July is 53%.

Rainfall

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

Snowfall

January through November are months without snowfall.

Daylight

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

Sunshine

The month with the most sunshine in Brentwood is July, with an average of 12.1h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. 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.

What is the warmest month in Brentwood?

July is the warmest month in Brentwood, with an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C).

What is the temperature in July in Brentwood?

In July, in Brentwood, California, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 56.5°F (13.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), that factores the actual air temperature with the relative humidity, in July is calculated to 93.2°F (34°C).

What is the average humidity in July in Brentwood?

The average relative humidity in July in Brentwood is 53%.

How many days does it rain in July in Brentwood?

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

What is the driest month in Brentwood?

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

When it does not snow in Brentwood?

In Brentwood, California, snow does not fall in January through November.

How many hours of daylight does Brentwood have in July?

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

What month has the most sunshine in Brentwood?

The month with the most sunshine in Brentwood is July, with an average of 12.1h of sunshine.

How many hours of sunshine does Brentwood have in July?

In July, the average sunshine is 12.1h.

What are the months with the highest UV index in Brentwood?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Brentwood.

How high is the UV index in July in Brentwood?

In Brentwood, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.
Average temperature in July - Brentwood, CA
  • Average high temperature in July: 88.5°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in July: 56.5°F

The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average humidity in July - Brentwood, CA
  • Average humidity in July: 53%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

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

The wettest month (with the highest rainfall) is February (2.09").
Driest months (with the lowest rainfall) are July and August (0.04").

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

The month with the highest number of rainy days is March (12.3 days).
The month with the lowest number of rainy days is August (0.8 days).

Average snowfall days in July - Brentwood, CA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the lowest number of snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in July / Average sunshine in July - Brentwood, 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: 9.6h).

  • Average sunshine in July: 12.1h

The month with most sunshine is July (Average sunshine: 12.1h).
The month with least sunshine is December (Average sunshine: 5.8h).

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

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