San Antonio air quality · Texas, United States
Traffic-side streets may read higher than the nearest station
US AQI 51 (Moderate) in San Antonio, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in San Antonio
- PM2.551AQI
- Ozone21AQI
- PM1014AQI
US values are per-pollutant AQI from the highest-reading monitor near San Antonio (San Antonio Old Hwy90 C677).
Is it safe outside in San Antonio 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 →
San Antonio air quality history
Daily average, 36 days- 50average daily US AQI over 36 days
- 98worst day, 16 September
- 23cleanest day, 4 October
- 0days at Unhealthy or worse
The last 7 days averaged 41, better than the week before (58). 21 of the last 36 days were Good.
Weather in San Antonio
No active National Weather Service alerts for San Antonio.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Mostly Sunny | 79°F | 63°F | 1% |
| Tue 20 | Sunny | 84°F | 63°F | 1% |
| Wed 21 | Sunny | 86°F | 64°F | 1% |
| Thu 22 | Sunny | 88°F | 63°F | 0% |
| Fri 23 | Sunny | 88°F | 66°F | 1% |
| Sat 24 | Mostly Sunny | 88°F | 68°F | 6% |
| Sun 25 | Partly Sunny then Slight Chance Rain Showers | 86°F | 66°F | 15% |
National Weather Service forecast. All US weather alerts →
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San Antonio air quality: common questions
What is the AQI in San Antonio right now?
The US AQI in San Antonio is 51 (Moderate). The main pollutant is PM2.5.
Is it safe to go outside in San Antonio 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 San Antonio been recently?
Over the last 36 days with data, San Antonio averaged US AQI 50. The worst day was 16 September at 98; the cleanest was 4 October at 23. 0 days were at Unhealthy or worse.
Where does San Antonio'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.