Worst air pollution São José do Rio Prêto, today and tomorrow
Today (9 August): Air quality in São José do Rio Prêto is fair. AQI and PM2.5 are fair; PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (PM2.5: 27.6/100).
Tomorrow (10 August 2026): Air quality in São José do Rio Prêto is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (PM2.5: 32.7/100). Airmine updates local air quality forecasts four times daily.
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São José do Rio Prêto's air quality reflects its position in the northwestern São Paulo state plateau at 479 metres, with vehicle emissions from the BR-153 and SP-310 corridors the primary local source in this major agribusiness and healthcare hub. The elevated plateau position generally aids background dispersal, while dry season burning from surrounding sugarcane and soy agricultural land contributes seasonal PM2.5 variation across the northwestern São Paulo interior.
Today - 9 August | Pollution peaks at 11:00
AQI:
Fair
27.6/100
PM2.5 (fine particles):
Fair
27.6/100
PM10 (coarse particles):
Good
13.1/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.2/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Fair
32.7/100
PM2.5 (fine particles):
Fair
32.7/100
PM10 (coarse particles):
Good
15.7/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.0/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
4.0/100
Pollen forecast in São José do Rio Prêto
View pollen forecastFrequently Asked Questions
Is air quality bad in São José do Rio Prêto right now?
On 9 August 2026, overall air quality in São José do Rio Prêto is fair. AQI is the main air quality indicator at 27.6/100. Pollution peaks around 11:00 AM (PM2.5: 27.6/100).
Will air quality be worse tomorrow in São José do Rio Prêto?
On 10 August 2026, air quality conditions in São José do Rio Prêto will be similar to today, with AQI forecast at fair at 32.7/100. Pollution peaks around 2:00 PM (PM2.5: 32.7/100).
When is air pollution at its worst in São José do Rio Prêto?
In São José do Rio Prêto, reduced air quality is most noticeable when eucalyptus and native cerrado remnants pollen peaks, and on days affected by surrounding sugarcane and soy agricultural land; the clearest air tends to follow a change in wind direction or rainfall here.
Are air quality levels in São José do Rio Prêto 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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