San Fernando, CA Weather - Forecast & Monthly Averages

Get 300+ Local Insights for Any Address in San Fernando, CA

Get Access to 300+ Local Data Points

TEMPERATURE	67
HUMIDITY	41
PRESSURE
WIND COND.	5 9.6

Weather Quick Facts

The highest monthly average temperature in San Fernando for August is 76.5 degrees
The lowest monthly average temperature in San Fernando for December is 55.3 degrees
The most monthly precipitation in San Fernando occurs in February with 3.2 inches
The air quality index in San Fernando is 71% worse than the national average
The pollution index in San Fernando is 5017% worse than the national average

Compare San Fernando, CA Weather

Compare Neighborhoods & Addresses

Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.

UNLOCK FULL COMPARISON →

Write a review to give others more information about this area.

See all San Fernando poll results

San Fernando Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	46°F	69°F	56°F	3.0"
February	46°F	70°F	57°F	3.2"
March	49°F	74°F	60°F	1.5"
April	51°F	77°F	63°F	0.7"
May	55°F	80°F	66°F	0.2"
June	60°F	86°F	71°F	0.0"
July	64°F	92°F	76°F	0.1"
August	64°F	93°F	77°F	0.0"
September	62°F	91°F	75°F	0.2"
October	57°F	84°F	68°F	0.5"
November	50°F	76°F	62°F	0.7"
December	44°F	68°F	55°F	2.2"

The best places in California

Here are the best places to live in California

Safest Cities In The US

These are the largest cities in California

Check out the 10 most dangerous cities in California

San Fernando air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	San Fernando	California	National
Air quality index	72	55	42
Pollution index	139,490,000	10,473,190	2,726,193

San Fernando air quality

Measurement	Total
Days measured	365
Days with good air quality	66
Days with moderate air quality	208
Days w/ poor A.Q. for sensitive groups	62
Days with unhealthy air quality	28

Air quality details

Pollutant	Total
Arsenic	0.200%
Benzene	0.950%
Carbon Tetrachloride	0.080%
Lead	1.320%
Mercury	0.440%

Average monthly San Fernando temperature with heat index

San Fernando monthly precipitation with daily maximum

San Fernando monthly snow depth with daily maximum

San Fernando monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Glendale, CA	204,037	72	44.0%
Beverly Hills, CA	34,487	72	44.0%
Agua Dulce, CA	3,611	72	44.0%
Stevenson Ranch, CA	19,485	72	44.0%
La Crescenta-Montrose, CA	20,963	72	44.0%
San Fernando, CA	24,761	72	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Grande Prairie County No. 1, AB	24,756	n/a
Chantilly, VA	24,744	47	6.0%
Waverly, MI	24,722	36	28.0%
Faribault, MN	24,714	37	26.0%
Camas, WA	24,814	38	24.0%
San Fernando, CA	24,761	72	44.0%

Source: The San Fernando, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.