What is the air quality in San Juan Capistrano today?

The current Air Quality Index (AQI) in San Juan Capistrano is 18 (Good). PM2.5 concentration is 4.19 µg/m³.

What is the temperature in San Juan Capistrano right now?

The current temperature in San Juan Capistrano is 21.3°C (feels like 21.3°C). Humidity is 70.2% and wind speed is 32.0 km/h.

Is it safe to go outside in San Juan Capistrano?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in San Juan Capistrano, United States

Cloudy

21.3°C · 70.2% humidity

21.3°

Feels 21.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

27 3pm

18 6pm

28 9pm

25 12am

26 3am

27 6am

34 9am

54 12pm

Air Quality Index Trend

45h · 3 stn

View full history →

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

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

4.19 µg/m³

PM10▲

20.55 µg/m³

050100150200300500

What is the weather forecast for San Juan Capistrano?

Temperature & Precipitation

PM2.5 Trend

45h · 3 stations

PM2.54.19 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX2.2

Moderate

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

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°

07-28

23.1° 18.5°

Both models agree Avg diff: 3.7°C

Where are air quality stations near San Juan Capistrano?

Monroe Elementary

30.1 km PM2.5: 2.0 µg/m³

What cities are near San Juan Capistrano?

21 Laguna Niguel 17 Dana Point 19 Ladera Ranch 18 Aliso Viejo 18 San Clemente 18 Mission Viejo 18 Laguna Beach 18 Laguna Hills 18 Laguna Woods 18 Lake Forest

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-07-22T01:52 UTC.