What is the air quality in San Antonio today?

The current Air Quality Index (AQI) in San Antonio is 13 (Good). PM2.5 concentration is 3.25 µg/m³.

What is the temperature in San Antonio right now?

The current temperature in San Antonio is 13.1°C (feels like 13.1°C). Humidity is 81.2% and wind speed is 36.8 km/h.

Is it safe to go outside in San Antonio?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Antonio, Chile

Cloudy

13.1°C · 81.2% humidity

13.1°

Feels 13.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 1 stn

View full history →

San Antonio's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

81.2%

Humidity

36.8 km/h

Wind SSW

1014.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.25 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Antonio?

Temperature & Precipitation

PM2.5 Trend

45h · 1 station

PM2.53.25 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for San Antonio?

10-22

14.9° 12.4°

10-23

15.0° 13.4°

10-24

15.3° 13.5°

0.06 mm

10-25

15.0° 13.1°

10-26

15.2° 12.9°

10-27

14.7° 12.3°

1.0 mm

10-28

15.4° 13.5°

Both models agree Avg diff: 1.7°C

What cities are near San Antonio?

13 Cartagena 13 Casablanca 13 Melipilla 12 El Monte 12 Valparaíso 12 Quilpué 10 Talagante 12 Viña del Mar 12 Villa Alemana 12 Peñaflor

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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 2026-10-22T03:43 UTC.