August weather forecastBrentwood, CA
August
Weather in August
August, the last month of the summer in Brentwood, is also a hot month, with an average temperature ranging between max 87.4°F (30.8°C) and min 57.4°F (14.1°C).Temperature
Brentwood records an average high-temperature of a still tropical 87.4°F (30.8°C) in August, maintaining a close correlation with July's 88.5°F (31.4°C). The nighttime average for Brentwood in August plummets considerably from its daytime counterpart, resting at a mild 57.4°F (14.1°C).Heat index
In August, the average heat index is evaluated at a tropical 93.2°F (34°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Heat index determinations are made taking into account the shade and light air movements. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In August, the average relative humidity is 56%.Rainfall
July and August are months with the least rain in Brentwood when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.Snowfall
In Brentwood, snow does not fall in January through November.Daylight
In Brentwood, the average length of the day in August is 13h and 35min.On the first day of August in Brentwood, sunrise is at 6:10 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:37 pm PDT.
Sunshine
In Brentwood, the average sunshine in August is 11.9h.UV index
The months with the highest UV index in Brentwood are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Brentwood, CA
- Average high temperature in August: 87.4°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 August: 57.4°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 pressure in August
Brentwood, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Brentwood, CA
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity in August
Brentwood, CA
- Average humidity in August: 56%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall in August
Brentwood, CA
- Average rainfall in August: 0.04"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in August
Brentwood, CA
- Average rainfall days in August: 0.8 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in August
Brentwood, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Brentwood, CA
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in August
Brentwood, CA
- Average sunshine days in August: 29.8 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).
Average UV index in August
Brentwood, CA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Brentwood, CA
- Average cloud cover in August: 7
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in August
Brentwood, CA
- Average visibility in August: 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).
