Air Quality in Chula Vista, United States

Cloudy
17.4°C · 75.0% humidity
17.4°
Feels 17.4°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
54 4am
54
54
22 7am
25
28
30 10am
31
32
32 1pm
33
33
33 4pm
34
27
27 7pm
27
27
27 10pm
27
27
34 1am
34
54
AD 728×90

Air Quality Index Trend

48h · 1 stn

Chula Vista's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Chula Vista is 1.0× the WHO annual guideline of 5 µg/m³.

75.0%
Humidity
22.4 km/h
Wind SW
1011.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
22
5.22 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Chula Vista?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.55.22 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (5 stations within 25 km)
5.22
Median
5.1
Average
3.69
Low
8.4
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +2.1

What is the 7-day forecast for Chula Vista?

05-29
22.0° 17.4°
05-30
17.8° 16.4°
05-31
20.5° 18.7°
06-01
21.0° 17.5°
06-02
21.3° 16.2°
06-03
20.7° 15.6°
06-04
19.8° 17.1°
Both models agree Avg diff: 1.6°C

Where are air quality stations near Chula Vista?

18
Smythe Avenue
9.1 km PM2.5: 4.4 µg/m³
15
Ocean View Hills
9.5 km PM2.5: 3.7 µg/m³
5
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 1.2 µg/m³
25
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 6.0 µg/m³
21
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 5.0 µg/m³
18
International Border
11.6 km PM2.5: 4.4 µg/m³
17
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 4.1 µg/m³
17
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 4.1 µg/m³
34
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 8.2 µg/m³
26
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 6.2 µg/m³

What cities are near Chula Vista?

29 National City 19 Imperial Beach 32 Coronado 23 La Presa 34 San Diego 25 Lemon Grove 24 Spring Valley 24 La Mesa 18 Tijuana 24 Casa de Oro-Mount Helix
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T14:47 UTC.