Air Quality in San Juan Capistrano, United States
Cloudy
18.9°C · 74.1% humidity
18.9°
Feels 18.9°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
San Juan Capistrano's air quality — share it
AQI Forecast
34
5pm
34
34
27
8pm
29
30
24
11pm
25
26
26
2am
26
27
27
5am
27
27
34
8am
34
34
34
11am
34
34
34
2pm
34
34
Air Quality Index Trend
46h · 6 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.
74.1%
Humidity
34.2 km/h
Wind SSE
1009.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.36 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for San Juan Capistrano?
Temperature & Precipitation
PM2.5 Trend
46h · 6 stationsPM2.56.36 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for San Juan Capistrano?
06-09
20.3° 17.9°
06-10
19.9° 17.8°
06-11
19.3° 17.4°
06-12
19.7° 17.0°
06-13
21.5° 17.8°
06-14
19.6° 17.6°
06-15
18.7° 16.5°
0.06 mm
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 2026-06-09T03:15 UTC.