Worst air pollution Cotia, today and tomorrow
Today (16 July): Air quality in Cotia is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 15.6/100).
Tomorrow (17 July 2026): Air quality in Cotia is good. All pollutants stay as today. Pollution peaks around 10:00 PM (O3: 16.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Cotia's air quality reflects its position in the western Greater São Paulo metropolitan ring, with vehicle emissions from the SP-270 Raposo Tavares and the Rodovia Castello Branco and the surrounding pharmaceutical, chemical, and logistics industry contributing elevated PM2.5 and NOₓ. The Greater São Paulo basin's poor dispersal characteristics affect the entire western corridor, while the Serra de Cotia highlands to the west provide some topographic separation, but the metropolitan area's industrial sprawl keeps readings consistently above rural background levels throughout the year.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
15.6/100
PM2.5 (fine particles):
Good
5.9/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
15.6/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
0.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
6.5/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.3/100
Pollen forecast in Cotia
View pollen forecastFrequently Asked Questions
Is air quality bad in Cotia right now?
On 16 July 2026, overall air quality in Cotia is good. AQI is the main air quality indicator at 15.6/100. Pollution peaks around 11:00 PM (O3: 15.6/100).
Will air quality be worse tomorrow in Cotia?
On 17 July 2026, air quality conditions in Cotia will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 10:00 PM (O3: 16.7/100).
When is air pollution at its worst in Cotia?
You're most likely to notice worse air in Cotia when eucalyptus and introduced urban trees pollen peaks, or due to vehicle emissions from the SP-270 Raposo Tavares and the Rodovia Castello Branco and the surrounding pharmaceutical; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Cotia based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app