What is the air quality trend in San Luis Potosí?

Over the past 15 days, San Luis Potosí had an average AQI of 37 based on station measurements. The worst day was 2026-10-20 with AQI 67.

How is San Luis Potosí air quality measured?

Air quality in San Luis Potosí 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 Luis Potosí, Mexico

Name: San Luis Potosí 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 Luis Potosí, Mexico.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

235h

PM2.5 Station

235h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	36	26–47	8.5 µg/m³	5h	1
2026-10-20	67	14–500	36.4 µg/m³	20h	1
2026-10-19	31	1–64	7.5 µg/m³	15h	1
2026-10-18	27	3–68	6.7 µg/m³	14h	1
2026-10-17	38	14–62	9.4 µg/m³	17h	1
2026-10-16	39	2–109	10.4 µg/m³	15h	1
2026-10-15	27	3–53	6.5 µg/m³	11h	1
2026-10-14	43	6–189	15.3 µg/m³	18h	1
2026-10-13	42	11–93	11.3 µg/m³	12h	1
2026-10-12	28	4–50	6.6 µg/m³	21h	1
2026-10-11	37	17–81	10.3 µg/m³	19h	1
2026-10-10	28	1–59	6.8 µg/m³	20h	1
2026-10-09	39	2–61	9.5 µg/m³	18h	1
2026-10-08	42	15–83	10.7 µg/m³	16h	1
2026-10-07	33	14–79	8.5 µg/m³	14h	1

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