El Cajon air quality · California, United States
This AQI is manageable, though sensitive lungs may notice it
US AQI 64 (Moderate) in El Cajon, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in El Cajon
- PM2.564AQI
- PM1062AQI
- Ozone44AQI
US values are per-pollutant AQI from the highest-reading monitor near El Cajon (Otay Mesa - Donovan).
Is it safe outside in El Cajon right now?
Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors.
Walking and commuting
Go aheadFine for everyone.
Running and jogging
Take careFine for most; unusually sensitive people should ease the pace.
Cycling
Go aheadFine for everyone.
Children playing outside
Go aheadNo limits for most children.
Older adults and heart or lung conditions
Take careWatch for symptoms such as coughing or breathlessness.
Open windows
Go aheadFine to ventilate.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededOptional.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 51–100 means for your health →
El Cajon air quality history
Daily average, 36 days- 60average daily US AQI over 36 days
- 106worst day, 17 October
- 38cleanest day, 13 October
- 0days at Unhealthy or worse
The last 7 days averaged 61, better than the week before (71). 9 of the last 36 days were Good.
Weather in El Cajon
No active National Weather Service alerts for El Cajon.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Patchy Fog then Sunny | 88°F | 61°F | 1% |
| Tue 20 | Patchy Fog then Sunny | 84°F | 59°F | 6% |
| Wed 21 | Rain Showers Likely | 79°F | 59°F | 80% |
| Thu 22 | Showers And Thunderstorms | 72°F | 54°F | 80% |
| Fri 23 | Sunny | 73°F | 54°F | 7% |
| Sat 24 | Sunny | 81°F | 55°F | 2% |
| Sun 25 | Sunny | 81°F | 57°F | 4% |
National Weather Service forecast. All US weather alerts →
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El Cajon air quality: common questions
What is the AQI in El Cajon right now?
The US AQI in El Cajon is 64 (Moderate). The main pollutant is PM2.5.
Is it safe to go outside in El Cajon today?
Fine for most people. Air quality is acceptable. People who are unusually sensitive to air pollution may feel effects with long or heavy exertion outdoors. For runners: Fine for most; unusually sensitive people should ease the pace.
How has air quality in El Cajon been recently?
Over the last 36 days with data, El Cajon averaged US AQI 60. The worst day was 17 October at 106; the cleanest was 13 October at 38. 0 days were at Unhealthy or worse.
Where does El Cajon's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.