Highest air pollution Curitiba, today and tomorrow
Today (28 June): Air quality in Curitiba is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (O3: 16.8/100).
Tomorrow (29 June 2026): Air quality in Curitiba is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 16.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Curitiba's air quality is generally moderate for a major Brazilian metropolitan area, benefiting from the elevated Paraná plateau position at 935 metres that aids background dispersal. Vehicle emissions from the growing metropolitan area are the primary source, while the city's innovative public transport network has partially moderated the traffic growth typical of Brazilian cities of comparable size.
Today - 28 June | Pollution peaks at 00:00
AQI:
Good
16.8/100
PM2.5 (fine particles):
Good
11.9/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.8/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.4/100
Levels show the poorest local air quality during the day
Tomorrow - 29 June | Pollution peaks at 23:00
AQI:
Good
16.9/100
PM2.5 (fine particles):
Good
11.4/100
PM10 (coarse particles):
Good
5.2/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.9/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.1/100
Pollen forecast in Curitiba
View pollen forecastFrequently Asked Questions
Is air quality bad in Curitiba right now?
On 28 June 2026, overall air quality in Curitiba is good. AQI is the main air quality indicator at 16.8/100. Pollution peaks around 12:00 AM (O3: 16.8/100).
Will air quality be worse tomorrow in Curitiba?
On 29 June 2026, air quality conditions in Curitiba will be similar to today, with AQI forecast at good at 16.9/100. Pollution peaks around 11:00 PM (O3: 16.9/100).
Are air quality levels in Curitiba 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.
Want to see air quality forecasts for other cities in Brazil?
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Data provided by Airmine — Last update: 28 June 2026 at 18:36 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team