Worst air pollution Pôrto Seguro, today and tomorrow
Today (16 July): Air quality in Pôrto Seguro is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 18.5/100).
Tomorrow (17 July 2026): Air quality in Pôrto Seguro is good. All pollutants stay as today. Pollution peaks around 7:00 AM (O3: 18.8/100). 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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Pôrto Seguro's air quality benefits from its Atlantic coastal position on the southern Bahia coast, with consistent sea breezes providing reliable maritime ventilation along this major tourism destination. Vehicle emissions from the BR-367 and seasonal tourism traffic are the primary local sources, while the Atlantic coastal position and surrounding Discovery Coast Atlantic Forest reserve generally maintain good to excellent air quality throughout most of the year.
Today - 16 July | Pollution peaks at 07:00
AQI:
Good
18.5/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.5/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 07:00
AQI:
Good
18.8/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.8/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.5/100
Pollen forecast in Pôrto Seguro
View pollen forecastFrequently Asked Questions
Is air quality bad in Pôrto Seguro right now?
On 16 July 2026, overall air quality in Pôrto Seguro is good. AQI is the main air quality indicator at 18.5/100. Pollution peaks around 7:00 AM (O3: 18.5/100).
Will air quality be worse tomorrow in Pôrto Seguro?
On 17 July 2026, air quality conditions in Pôrto Seguro will be similar to today, with AQI forecast at good at 18.8/100. Pollution peaks around 7:00 AM (O3: 18.8/100).
When is air pollution at its worst in Pôrto Seguro?
Reduced air quality in Pôrto Seguro is most likely when restinga coastal scrub and introduced resort vegetation pollen peaks, alongside periods of vehicle emissions from the BR-367 and seasonal tourism traffic; outside of those periods, conditions here remain among the more favourable in the region.
Are air quality levels in Pôrto Seguro 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