Worst air pollution St. Petersburg, today and tomorrow
Today (9 August): Air quality in St. Petersburg is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (PM10: 54.7/100).
Tomorrow (10 August 2026): Air quality in St. Petersburg is poor. AQI worsens to poor; PM10 increases to poor; all other pollutants stay as today. Pollution peaks around 7:00 PM (PM10: 60.5/100). 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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St. Petersburg's air quality in Florida benefits from its Tampa Bay coastal position, with consistent Gulf of Mexico sea breezes from the west and Tampa Bay breezes from the north and east providing reliable maritime ventilation across the Pinellas Peninsula. The primary concerns are vehicle emissions from I-275 and the Gandy and Howard Frankland bridge corridors, summer ozone from the broader Tampa Bay metropolitan traffic, and occasional wildfire smoke from the surrounding Florida scrub landscape.
Today - 9 August | Pollution peaks at 02:00
AQI:
Medium
54.7/100
PM2.5 (fine particles):
Medium
43.1/100
PM10 (coarse particles):
Medium
54.7/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
27.0/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
6.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 19:00
AQI:
Poor
60.5/100
PM2.5 (fine particles):
Medium
44.9/100
PM10 (coarse particles):
Poor
60.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
32.1/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
9.1/100
Pollen forecast in St. Petersburg
View pollen forecastFrequently Asked Questions
Is air quality bad in St. Petersburg right now?
On 9 August 2026, overall air quality in St. Petersburg is fair. O3 is the main pollutant at 27.0/100. Pollution peaks around 2:00 AM (PM10: 54.7/100).
Will air quality be worse tomorrow in St. Petersburg?
On 10 August 2026, air quality conditions in St. Petersburg will be worse than today, with AQI forecast at poor at 60.5/100. Pollution peaks around 7:00 PM (PM10: 60.5/100).
When is air pollution at its worst in St. Petersburg?
St. Petersburg's air quality follows a clear seasonal pattern. In short, the wet season's frequent storms generally keep particulate levels lower than in the dry months, whereas without the wet season's regular storms, dry-season smoke can linger for days at a time. Sea breezes help disperse pollution on most days, though smoke from inland fires can still drift into populated areas.
Are air quality levels in St. Petersburg 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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