Worst air pollution São Francisco, today and tomorrow
Today (16 July): Air quality in São Francisco is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 18.6/100).
Tomorrow (17 July 2026): Air quality in São Francisco is good. All pollutants stay as today. Pollution peaks around 6:00 AM (O3: 19.4/100). 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's air quality in Minas Gerais reflects the São Francisco River middle valley at 499 metres in the northern Minas semi-arid region, with vehicle emissions from the MG-202 and surrounding cattle ranching and irrigated farming contributing local sources. The São Francisco valley's winds provide reasonable ventilation, while drought conditions and Caatinga burning contribute seasonal PM10 elevation across the semi-arid northern Minas Gerais region throughout the dry season.
Today - 16 July | Pollution peaks at 07:00
AQI:
Good
18.6/100
PM2.5 (fine particles):
Good
9.6/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.6/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Good
19.4/100
PM2.5 (fine particles):
Good
9.9/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
19.4/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.5/100
Pollen forecast in São Francisco
View pollen forecastFrequently Asked Questions
Is air quality bad in São Francisco right now?
On 16 July 2026, overall air quality in São Francisco is good. AQI is the main air quality indicator at 18.6/100. Pollution peaks around 7:00 AM (O3: 18.6/100).
Will air quality be worse tomorrow in São Francisco?
On 17 July 2026, air quality conditions in São Francisco will be similar to today, with AQI forecast at good at 19.4/100. Pollution peaks around 6:00 AM (O3: 19.4/100).
When is air pollution at its worst in São Francisco?
Residents in São Francisco are most likely to notice reduced air quality when native caatinga scrub and cerrado trees pollen peaks, or due to vehicle emissions from the MG-202 and surrounding cattle ranching and irrigated farming; wind and rain both help clear the air fairly quickly here.
Are air quality levels in São Francisco 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