Air Quality in San Juan Capistrano, United States
Windy
22.3°C · 74.7% humidity
22.3°
Feels 22.3°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
San Juan Capistrano's air quality — share it
AQI Forecast
54
6pm
54
54
30
9pm
37
42
45
12am
48
29
31
3am
32
52
53
6am
53
53
54
9am
54
54
54
12pm
54
54
54
3pm
54
54
Air Quality Index Trend
46h · 2 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.
74.7%
Humidity
40.3 km/h
Wind S
1010.5 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
7.12 µg/m³
PM10▲
41.15 µg/m³
050100150200300500
What is the weather forecast for San Juan Capistrano?
Temperature & Precipitation
PM2.5 Trend
46h · 2 stationsPM2.57.12 µg/m³
✓ WHO
Good
PM1041.15 µg/m³
Good
UV INDEX17.4
Extreme
What is the 7-day forecast for San Juan Capistrano?
08-03
22.8° 20.2°
08-04
23.8° 20.1°
08-05
24.6° 21.5°
08-06
23.8° 19.1°
08-07
22.8° 20.3°
08-08
23.3° 19.6°
08-09
22.4° 18.4°
Both models agree
Avg diff: 3.3°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 2026-08-08T04:57 UTC.