Air Quality in National City, United States
Windy
21.2°C · 73.1% humidity
21.2°
Feels 21.2°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
AQI Forecast
34
3pm
34
34
30
6pm
34
34
34
9pm
34
34
54
12am
54
54
54
3am
54
54
54
6am
54
54
54
9am
54
54
54
12pm
54
54
Air Quality Index Trend
47h · 1 stnNational City's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
73.1%
Humidity
65.7 km/h
Wind WNW
1009.8 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for National City?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.57.1 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
What is the 7-day forecast for National City?
06-09
21.2° 17.7°
06-10
20.9° 17.8°
06-11
20.4° 18.2°
06-12
20.6° 17.7°
06-13
22.3° 18.0°
06-14
20.3° 19.1°
06-15
20.1° 16.8°
0.38 mm
Both models agree
Avg diff: 1.4°C
Where are air quality stations near National City?
82
San Diego - Sherman Elementary School, San Diego, California
14
San Diego - Sherman Elementary School, San Diego, California
52
San Diego - Sherman Elementary School, San Diego, California
29
Smythe Avenue
29
Ocean View Hills
30
International Border
48
Otay Mesa - Donovan Correctional Facility, San Diego, California
43
Otay Mesa - Donovan Correctional Facility, San Diego, California
32
Otay Mesa - Donovan Correctional Facility, San Diego, California
33
Otay Mesa - Donovan Correctional Facility, San Diego, California
What cities are near National City?
Get AQI alerts for National City
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T01:06 UTC.