Air Quality in Chula Vista, United States

Windy
23.6°C · 61.8% humidity
23.6°
Feels 23.6°
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast
54 7am
54
54
62 10am
60
58
57 1pm
56
56
35 4pm
35
35
34 7pm
34
34
34 10pm
34
34
34 1am
34
34
34 4am
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 1.1× the WHO 24-hour guideline of 15 µg/m³.

61.8%
Humidity
42.5 km/h
Wind W
1009.0 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
62
17.17 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
PM2.517.17 µg/m³ ×1.1 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
17.17
Median
17.35
Average
15.61
Low
18.85
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -6.3

What is the 7-day forecast for Chula Vista?

07-21
24.1° 21.5°
07-22
22.8° 21.2°
07-23
23.0° 21.1°
0.13 mm
07-24
24.7° 20.8°
07-25
24.5° 21.1°
07-26
24.1° 20.1°
07-27
23.6° 21.7°
Both models agree Avg diff: 1.8°C

Where are air quality stations near Chula Vista?

63
Smythe Avenue
9.1 km PM2.5: 17.6 µg/m³
58
Ocean View Hills
9.5 km PM2.5: 15.6 µg/m³
9
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 2.2 µg/m³
29
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 7.0 µg/m³
26
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 6.2 µg/m³
65
International Border
11.6 km PM2.5: 18.9 µg/m³
18
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 4.3 µg/m³
18
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 4.3 µg/m³
30
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 7.2 µg/m³
15
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 3.6 µg/m³

What cities are near Chula Vista?

62 National City 62 Imperial Beach 58 Coronado 62 La Presa 57 San Diego 59 Lemon Grove 62 Spring Valley 58 La Mesa 63 Tijuana 60 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 2026-07-21T17:14 UTC.