What is the air quality trend in San Antonio?

Over the past 3 days, San Antonio had an average AQI of 92 based on station measurements. The worst day was 2026-05-29 with AQI 113.

How is San Antonio air quality measured?

Air quality in San Antonio is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for San Antonio, Philippines

Name: San Antonio Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near San Antonio, Philippines.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

43h

PM2.5 Station

43h · 2 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	62	55–74	17.2 µg/m³	7h	2
2026-05-29	113	57–173	45.7 µg/m³	24h	2
2026-05-28	102	52–154	35.6 µg/m³	12h	2

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