Air Quality in San Juan Capistrano, United States

Cloudy
21.3°C · 70.2% humidity
21.3°
Feels 21.3°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
34 11am
34
34
20 2pm
17
20
22 5pm
30
31
32 8pm
33
33
26 11pm
27
27
27 2am
27
27
27 5am
27
27
27 8am
34
34
AD 728×90

Air Quality Index Trend

46h · 3 stn

San 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.

70.2%
Humidity
32.0 km/h
Wind SW
1006.6 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.72 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for San Juan Capistrano?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.54.72 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250

What is the 7-day forecast for San Juan Capistrano?

07-21
23.5° 21.1°
07-22
21.5° 20.3°
07-23
22.3° 20.3°
07-24
24.2° 20.8°
07-25
22.9° 21.0°
07-26
24.0° 19.9°
07-27
23.5° 21.1°
Both models agree Avg diff: 3.7°C

Where are air quality stations near San Juan Capistrano?

8
Monroe Elementary
30.1 km PM2.5: 2.0 µg/m³

What cities are near San Juan Capistrano?

21 Laguna Niguel 15 Dana Point 21 Ladera Ranch 24 Aliso Viejo 16 San Clemente 24 Mission Viejo 24 Laguna Beach 24 Laguna Hills 24 Laguna Woods 24 Lake Forest
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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 2026-07-21T21:40 UTC.