Worst air pollution São Francisco do Sul, today and tomorrow
Today (16 July): Air quality in São Francisco do Sul is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 15.9/100).
Tomorrow (17 July 2026): Air quality in São Francisco do Sul is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 16.0/100). 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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São Francisco do Sul's air quality benefits from its Santa Catarina northern coast island position, with consistent Atlantic sea breezes providing reliable maritime ventilation around this historic island port city. Vehicle emissions from the BR-280 and the Port of São Francisco do Sul's container terminal operations contribute local sources, while the Atlantic island geography and the open bay geometry generally maintain São Francisco do Sul among Santa Catarina's more moderate coastal port environments throughout most of the year.
Today - 16 July | Pollution peaks at 10:00
AQI:
Good
15.9/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
15.9/100
SO2 (sulfur dioxide):
Good
0.3/100
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 23:00
AQI:
Good
16.0/100
PM2.5 (fine particles):
Good
5.2/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.0/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.1/100
Pollen forecast in São Francisco do Sul
View pollen forecastFrequently Asked Questions
Is air quality bad in São Francisco do Sul right now?
On 16 July 2026, overall air quality in São Francisco do Sul is good. AQI is the main air quality indicator at 15.9/100. Pollution peaks around 10:00 AM (O3: 15.9/100).
Will air quality be worse tomorrow in São Francisco do Sul?
On 17 July 2026, air quality conditions in São Francisco do Sul will be similar to today, with AQI forecast at good at 16.0/100. Pollution peaks around 11:00 PM (O3: 16.0/100).
When is air pollution at its worst in São Francisco do Sul?
You're most likely to notice worse air in São Francisco do Sul when native Atlantic Forest remnants and mangrove vegetation pollen peaks, or due to vehicle emissions from the BR-280 and the Port of São Francisco do Sul's container terminal operations; the rest of the year, the local setting keeps things noticeably clearer than average.
Are air quality levels in São Francisco do Sul 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