Air Quality in Chula Vista, United States

Windy
26.4°C · 48.0% humidity
26.4°
Feels 26.4°
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
8 stations

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

45h · 9 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.

48.0%
Humidity
44.7 km/h
Wind NW
1015.2 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
62
17.2 µg/m³
PM10▲
76
104.9 µg/m³
050100150200300500

What is the weather forecast for Chula Vista?

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations
PM2.517.2 µg/m³ ×1.1 WHO
Moderate
PM10104.9 µg/m³
Moderate
UV INDEX0.0
Low
Station readings (8 stations within 25 km)
17.2
Median
18.5
Average
9.8
Low
33.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -3.7

What is the 7-day forecast for Chula Vista?

10-20
26.4° 21.7°
10-21
23.4° 20.3°
10-22
24.7° 20.9°
10-23
22.5° 20.3°
10-24
22.3° 19.2°
0.19 mm
10-25
27.0° 18.4°
10-26
23.7° 20.1°
Both models agree Avg diff: 3.4°C

Where are air quality stations near Chula Vista?

53
Smythe Avenue
9.1 km PM2.5: 12.9 µg/m³
56
Ocean View Hills
9.5 km PM2.5: 14.5 µg/m³
55
Southwest Chula Vista
9.5 km PM2.5: 13.8 µg/m³
50
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 12.0 µg/m³
87
San Diego - Sherman Elementary School, San Diego, California
9.5 km PM2.5: 29.2 µg/m³
60
International Border
11.6 km PM2.5: 16.6 µg/m³
78
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 24.9 µg/m³
95
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 33.0 µg/m³
90
Otay Mesa - Donovan Correctional Facility, San Diego, California
16.0 km PM2.5: 30.6 µg/m³
119
La Mesa
18.8 km PM2.5: 42.8 µg/m³

What cities are near Chula Vista?

58 National City 63 Imperial Beach 55 Coronado 62 La Presa 55 San Diego 57 Lemon Grove 56 Spring Valley 55 La Mesa 68 Tijuana 48 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 2026-10-20T20:06 UTC.