National City, CA Weather - Forecast & Monthly Averages

Get 300+ Local Insights for Any Address in National City, CA

Get Access to 300+ Local Data Points

TEMPERATURE	61
HUMIDITY	91
PRESSURE	101670
WIND COND.

Weather Quick Facts

The highest monthly average temperature in National City for August is 71.9 degrees
The lowest monthly average temperature in National City for January is 58.3 degrees
The most monthly precipitation in National City occurs in December with 2.3 inches
The air quality index in National City is 52% worse than the national average
The pollution index in National City is 1581% worse than the national average

Compare National City, 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 National City poll results

National City 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	49°F	68°F	58°F	2.0"
February	51°F	68°F	59°F	1.8"
March	54°F	69°F	61°F	1.1"
April	56°F	70°F	63°F	0.6"
May	60°F	71°F	65°F	0.3"
June	63°F	73°F	67°F	0.0"
July	67°F	77°F	71°F	0.2"
August	68°F	78°F	72°F	0.1"
September	66°F	79°F	72°F	0.2"
October	61°F	77°F	68°F	0.7"
November	55°F	73°F	64°F	0.9"
December	50°F	68°F	58°F	2.3"

The best places in California

Here are the best places to live in California

Safest Cities In The US

See the best places to live in National City

Most Dangerous States In The US

National City 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	National City	California	National
Air quality index	64	55	42
Pollution index	45,820,500	10,473,190	2,726,193

National City air quality

Measurement	Total
Days measured	365
Days with good air quality	87
Days with moderate air quality	253
Days w/ poor A.Q. for sensitive groups	23
Days with unhealthy air quality	2

Air quality details

Pollutant	Total
Arsenic	1.130%
Benzene	0.410%
Carbon Tetrachloride	0.030%
Lead	0.600%
Mercury	0.080%

Average monthly National City temperature with heat index

National City monthly precipitation with daily maximum

National City monthly snow depth with daily maximum

National City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Coronado, CA	24,526	64	28.0%
Lemon Grove, CA	26,739	64	28.0%
Bostonia, CA	17,532	64	28.0%
Granite Hills, CA	4,020	64	28.0%
Santee, CA	57,407	64	28.0%
National City, CA	61,342	64	28.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Reston, VA	61,418	47	6.0%
Spring, TX	61,514	52	4.0%
Taylor, MI	61,164	56	12.0%
Burnsville, MN	61,536	46	8.0%
Aurora, ON	61,058	n/a
National City, CA	61,342	64	28.0%

Source: The National City, 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.