What is the air quality trend in Oaxaca?

Over the past 8 days, Oaxaca had an average AQI of 45 based on station measurements. The worst day was 2026-07-18 with AQI 60.

How is Oaxaca air quality measured?

Air quality in Oaxaca 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 Oaxaca, Mexico

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

Historical PM2.5 and AQI trend from monitoring stations near Oaxaca, Mexico.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

120h

PM2.5 Station

120h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	52	48–55	12.7 µg/m³	35.5	2h	2
2026-07-21	52	36–76	13.6 µg/m³	31.1	23h	2
2026-07-20	40	11–68	10.2 µg/m³	20.7	11h	1
2026-07-19	48	3–102	13.7 µg/m³	—	12h	1
2026-07-18	60	19–102	18.0 µg/m³	32.0	8h	1
2026-07-17	40	12–152	10.9 µg/m³	31.9	24h	1
2026-07-16	34	17–83	8.7 µg/m³	37.1	21h	2
2026-07-15	38	8–111	10.1 µg/m³	39.1	19h	1

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