Worst air pollution Guarujá, today and tomorrow
Today (16 July): Air quality in Guarujá is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 15.5/100).
Tomorrow (17 July 2026): Air quality in Guarujá is good. All pollutants stay as today. Pollution peaks around 8:00 PM (O3: 16.3/100). 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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Guarujá's air quality reflects its position on the São Paulo state coast at the mouth of the Santos estuary, with industrial and port emissions from the Santos-Guarujá complex contributing elevated SO₂ and PM2.5 alongside vehicle traffic on the SP-055. Atlantic sea breezes generally provide coastal ventilation, but the Serra do Mar escarpment immediately inland creates topographic enclosure that can trap port and industrial emissions over the low-lying Santos Bay coastal strip.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
15.5/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
15.5/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
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 20:00
AQI:
Good
16.3/100
PM2.5 (fine particles):
Good
7.7/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.3/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.4/100
Pollen forecast in Guarujá
View pollen forecastFrequently Asked Questions
Is air quality bad in Guarujá right now?
On 16 July 2026, overall air quality in Guarujá is good. AQI is the main air quality indicator at 15.5/100. Pollution peaks around 11:00 PM (O3: 15.5/100).
Will air quality be worse tomorrow in Guarujá?
On 17 July 2026, air quality conditions in Guarujá will be similar to today, with AQI forecast at good at 16.3/100. Pollution peaks around 8:00 PM (O3: 16.3/100).
When is air pollution at its worst in Guarujá?
The most noticeable dips in Guarujá's air quality come when mangrove and introduced urban resort trees pollen peaks, or because of industrial and port emissions from the Santos-Guarujá complex; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Guarujá 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