April weather forecastBrentwood, CA

April
Weather in April
April is a pleasant spring month in Brentwood, California, with an average temperature ranging between min 46.6°F (8.1°C) and max 69.4°F (20.8°C).Temperature
April brings a slight increase in the average high-temperature, progressing from an enjoyable 63.5°F (17.5°C) in March to an agreeable 69.4°F (20.8°C). Throughout April, Brentwood acknowledges a distinct difference between its daytime highs and the steady low average of 46.6°F (8.1°C).Humidity
In April, the average relative humidity in Brentwood is 66%.Rainfall
In April, in Brentwood, the rain falls for 6.3 days. Throughout April, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall in Brentwood.Daylight
In Brentwood, the average length of the day in April is 13h and 13min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:30 pm. On the last day of April, in Brentwood, sunrise is at 6:10 am and sunset at 7:57 pm PDT.
Sunshine
In April, the average sunshine is 10.3h.UV index
In Brentwood, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 5 in April suggests the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Brentwood, CA
- Average high temperature in April: 69.4°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 April: 46.6°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 April
Brentwood, CA
- Average pressure in April: 30.03"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 April
Brentwood, CA
- Average wind speed in April: 6.8mph
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 April
Brentwood, CA
- Average humidity in April: 66%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall in April
Brentwood, CA
- Average rainfall in April: 0.55"
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 April
Brentwood, CA
- Average rainfall days in April: 6.3 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 April
Brentwood, CA
- Average snowfall days in April: 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 April /
Average sunshine in April
Brentwood, CA
- Average daylight in April: 13h and 12min
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 April: 10h and 18min
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 April
Brentwood, CA
- Average sunshine days in April: 22.8 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 April
Brentwood, CA
- Average UV index in April: 5
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 April
Brentwood, CA
- Average cloud cover in April: 26
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 April
Brentwood, CA
- Average visibility in April: 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).





