Air Quality in San Juan Capistrano, United States
Cloudy
17.3°C · 74.3% humidity
17.3°
Feels 17.3°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
San Juan Capistrano's air quality — share it
AQI Forecast
54
4am
54
54
15
7am
20
24
27
10am
49
50
51
1pm
52
53
33
4pm
33
27
27
7pm
27
27
27
10pm
27
27
27
1am
27
27
Air Quality Index Trend
46h · 8 stnSan Juan Capistrano's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
74.3%
Humidity
25.4 km/h
Wind SSE
1011.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
3.68 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for San Juan Capistrano?
Temperature & Precipitation
PM2.5 Trend
46h · 8 stationsPM2.53.68 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
What is the 7-day forecast for San Juan Capistrano?
05-29
20.9° 17.3°
05-30
17.6° 15.7°
05-31
19.8° 17.7°
06-01
20.3° 17.4°
06-02
20.0° 15.5°
06-03
19.8° 15.4°
06-04
18.7° 16.6°
Both models agree
Avg diff: 2.8°C
Where are air quality stations near San Juan Capistrano?
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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 2026-05-29T14:30 UTC.