Worst air pollution Guaratinguetá, today and tomorrow
Today (16 July): Air quality in Guaratinguetá is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 16.0/100).
Tomorrow (17 July 2026): Air quality in Guaratinguetá is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 16.8/100). 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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Guaratinguetá's air quality reflects the Paraíba do Sul valley on the São Paulo-Rio de Janeiro industrial corridor, with vehicle emissions from the Via Dutra and the Embraer aerospace facility contributing elevated NOₓ and industrial emissions. The valley's enclosed topography between the Serra da Mantiqueira and Serra do Mar concentrates emissions under calm conditions.
Today - 16 July | Pollution peaks at 19:00
AQI:
Good
16.0/100
PM2.5 (fine particles):
Good
5.6/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
16.8/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.8/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.4/100
Pollen forecast in Guaratinguetá
View pollen forecastFrequently Asked Questions
Is air quality bad in Guaratinguetá right now?
On 16 July 2026, overall air quality in Guaratinguetá is good. AQI is the main air quality indicator at 16.0/100. Pollution peaks around 7:00 PM (O3: 16.0/100).
Will air quality be worse tomorrow in Guaratinguetá?
On 17 July 2026, air quality conditions in Guaratinguetá will be similar to today, with AQI forecast at good at 16.8/100. Pollution peaks around 11:00 PM (O3: 16.8/100).
When is air pollution at its worst in Guaratinguetá?
People in Guaratinguetá tend to notice reduced air quality when native Atlantic Forest remnants and the Paraíba do Sul River corridor vegetation pollen peaks, or because of vehicle emissions from the Via Dutra and the Embraer aerospace facility; wind and rain both help clear the air fairly quickly here.
Are air quality levels in Guaratinguetá 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