Air Quality in San Antonio, United States

Drizzle
25.7°C · 73.8% humidity
25.7°
Feels 25.7°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 1pm
11
11
30 4pm
24
20
17 7pm
15
15
14 10pm
20
19
19 1am
12
12
11 4am
9
9
9 7am
11
11
11 10am
11
11
Station readings
4
6
12
12
CAMS model adj -16
25
27
27
25
25
25
25
25
27
27
34
34
34
27
27
27
25
25
25
27
27
27
27
27
AD 728×90

Air Quality Index Trend

25h · 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. Current PM2.5 concentration in San Antonio is 1.4× the WHO annual guideline of 5 µg/m³.

73.8%
Humidity
67.3 km/h
Wind ESE
1008.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.19 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Antonio?

Temperature & Precipitation

PM2.5 Trend

25h · 1 station
PM2.57.19 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (11 stations within 25 km)
7.19
Median
6.86
Average
2.25
Low
12.6
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -0.1
Both models agree Avg diff: 2.6°C

Where are air quality stations near San Antonio?

50
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 12.0 µg/m³
24
CPS Pecan Valley, San Antonio, Texas
6.3 km PM2.5: 5.8 µg/m³
21
San Antonio Interstate 35
15.3 km PM2.5: 5.0 µg/m³
23
San Antonio Northwest, San Antonio, Texas
15.9 km PM2.5: 5.5 µg/m³
12
united-states-of-america-hollywood-park-pinetree-lane
15.9 km PM2.5: 2.8 µg/m³ PM10: 3.3 µg/m³
21
Heritage Middle School, San Antonio, Texas
17.5 km PM2.5: 5.0 µg/m³
34
Heritage Middle School, San Antonio, Texas
17.5 km PM2.5: 8.2 µg/m³
7
San Antonio Red Hill Lane
23.7 km PM2.5: 1.7 µg/m³
25
Calaveras Lake, San Antonio, Texas
24.2 km PM2.5: 6.0 µg/m³
26
San Antonio Bulverde Parkway
24.6 km PM2.5: 6.3 µg/m³ PM10: 20.6 µg/m³

What cities are near San Antonio?

24 Converse 22 Live Oak 24 Universal City 25 Schertz 20 Cibolo 18 New Braunfels 19 Seguin 5 Canyon Lake 15 San Marcos 15 Kyle
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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 2026-05-28T21:47 UTC.