What is the air quality trend in São Miguel?

Over the past 8 days, São Miguel had an average AQI of 81 based on station measurements. The worst day was 2026-05-25 with AQI 103.

How is São Miguel air quality measured?

Air quality in São Miguel 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 São Miguel, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near São Miguel, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

169h

PM2.5 Station

169h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	70	37–122	21.4 µg/m³	25.6	19h	25
2026-05-29	66	40–102	19.4 µg/m³	14.8	24h	25
2026-05-28	65	33–120	19.1 µg/m³	5.2	24h	27
2026-05-27	86	55–155	28.6 µg/m³	25.3	24h	26
2026-05-26	86	49–141	28.5 µg/m³	20.9	24h	28
2026-05-25	103	40–161	36.7 µg/m³	25.5	24h	29
2026-05-24	90	64–154	30.3 µg/m³	29.8	24h	30
2026-05-23	88	68–113	29.5 µg/m³	31.7	6h	29

Back to São Miguel Air Quality