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

June 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
The first month of the summer, June, is still a warm month in Brentwood, California, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 55°F (12.8°C).

Temperature

In June, the average high-temperature marginally rises, from a moderately hot 75.6°F (24.2°C) in May, to a still warm 84.4°F (29.1°C). In June, the average low-temperature is 55°F (12.8°C).

Heat index

The average heat index is estimated at a hot 86.4°F (30.2°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. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, differences in body mass, height, and shape, clothing), and activity. 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

The average relative humidity in Brentwood is 53%.

Rainfall

In Brentwood, during June, the rain falls for 1.3 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, in Brentwood, California, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall in Brentwood.

Daylight

The month with the longest days is June, with an average of 14.8h of daylight.

Sunshine

In June, the average sunshine in Brentwood is 11.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Brentwood, California. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In June, 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. 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.

What is the temperature in June in Brentwood?

In Brentwood, in June, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 55°F (12.8°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines both air temperature and relative humidity, in June is calculated to 86.4°F (30.2°C).

What is the average humidity in June in Brentwood?

In June, the average relative humidity in Brentwood is 53%.

How much does it rain in Brentwood in June?

In Brentwood, in June, during 1.3 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

When it does not snow in Brentwood?

In Brentwood snow does not fall in January through November.

When are the longest days in Brentwood?

June has the longest days of the year in Brentwood, with an average of 14.8h of daylight.

How many hours of daylight does Brentwood have in June?

The average length of the day in June is 14.8h.

How many hours of sunshine does Brentwood have in June?

In Brentwood, the average sunshine in June is 11.8h.

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.

What is the UV index intensity in June in Brentwood?

The average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation.
Average temperature in June - Brentwood, CA
  • Average high temperature in June: 84.4°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 June: 55°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 June - Brentwood, CA
  • Average humidity in June: 53%

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

Average rainfall in June - Brentwood, CA
  • Average rainfall in June: 0.08"

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 June - Brentwood, CA
  • Average rainfall days in June: 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 June - Brentwood, CA
  • Average snowfall days in June: 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 June / Average sunshine in June - Brentwood, CA
  • Average daylight in June: 14.8h

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 June: 11.8h

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 June - Brentwood, CA
  • Average UV index in June: 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).