Air Quality in San Antonio, United States

Cloudy
24.2°C · 88.0% humidity
24.2°
Feels 24.2°
11
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 6am
18
18
11 9am
13
14
15 12pm
16
17
17 3pm
17
18
18 6pm
18
18
18 9pm
18
18
18 12am
18
18
18 3am
18
18
Station readings
22
19
24
CAMS model adj -7
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

47h · 1 stn

San Antonio's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

88.0%
Humidity
38.5 km/h
Wind SSE
1014.8 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
11
2.68 µg/m³
PM10▲
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Antonio?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.52.68 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (9 stations within 25 km)
2.68
Median
4.16
Average
0.2
Low
9.1
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +3.3

What is the 7-day forecast for San Antonio?

09-05
37.8° 24.2°
09-06
38.0° 24.1°
09-07
39.1° 24.8°
0.06 mm
09-08
37.8° 24.2°
1.06 mm
09-09
39.3° 26.9°
09-10
35.3° 20.2°
0.25 mm
09-11
37.4° 24.8°
0.06 mm
Both models agree Avg diff: 2.1°C

Where are air quality stations near San Antonio?

1
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 0.2 µg/m³
17
Old Hwy 90, San Antonio, Texas
8.4 km PM2.5: 4.1 µg/m³
16
Old Hwy 90, San Antonio, Texas
8.4 km PM2.5: 3.8 µg/m³
17
San Antonio Interstate 35
15.3 km PM2.5: 4.0 µg/m³
13
San Antonio Northwest, San Antonio, Texas
15.9 km PM2.5: 3.1 µg/m³
24
united-states-of-america-hollywood-park-pinetree-lane
15.9 km PM2.5: 5.8 µg/m³ PM10: 5.8 µg/m³
38
Heritage Middle School, San Antonio, Texas
17.5 km PM2.5: 9.1 µg/m³
25
San Antonio Red Hill Lane
23.7 km PM2.5: 6.0 µg/m³
1
Calaveras Lake, San Antonio, Texas
24.2 km PM2.5: 0.2 µg/m³
26
San Antonio Bulverde Parkway
24.6 km PM2.5: 6.3 µg/m³ PM10: 12.1 µg/m³

What cities are near San Antonio?

20 Converse 20 Live Oak 20 Universal City 20 Schertz 21 Cibolo 19 New Braunfels 19 Seguin 19 Canyon Lake 25 San Marcos 25 Kyle
Get AQI alerts for San Antonio

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T14:33 UTC.