What is the air quality trend in São Paulo de Frades?

Over the past 3 days, São Paulo de Frades had an average AQI of 14 based on station measurements. The worst day was 2026-06-07 with AQI 17.

How is São Paulo de Frades air quality measured?

Air quality in São Paulo de Frades 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 Paulo de Frades, Portugal

Name: São Paulo de Frades 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 Paulo de Frades, Portugal.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

31h

PM2.5 Station

31h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	10	8–12	2.5 µg/m³	16.0	8h	1
2026-06-08	15	12–17	3.5 µg/m³	24.7	19h	1
2026-06-07	17	17–17	4.0 µg/m³	31.5	4h	1

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