Worst air pollution St. Petersburg, today and tomorrow

Today (16 July): Air quality in St. Petersburg is poor. AQI and PM10 are poor; O3 is fair; PM2.5 is medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (PM10: 68.2/100).
Tomorrow (17 July 2026): Air quality in St. Petersburg is fair. AQI improves to medium; PM10 decreases to medium; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 58.3/100). 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

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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 - 16 July | Pollution peaks at 06:00

AQI:

Poor

68.2/100

PM2.5 (fine particles):

Medium

48.0/100

PM10 (coarse particles):

Poor

68.2/100

NO2 (nitrogen dioxide):

Good

0.6/100

O3 (ozone):

Fair

32.4/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.5/100

PM1 (ultrafine particles):

Good

8.8/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 00:00

AQI:

Medium

58.3/100

PM2.5 (fine particles):

Medium

45.3/100

PM10 (coarse particles):

Medium

58.3/100

NO2 (nitrogen dioxide):

Good

3.2/100

O3 (ozone):

Fair

26.9/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.8/100

PM1 (ultrafine particles):

Good

9.6/100

Pollen forecast in St. Petersburg

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Frequently Asked Questions

Is air quality bad in St. Petersburg right now?

On 16 July 2026, overall air quality in St. Petersburg is poor. AQI is the main air quality indicator at 68.2/100. Pollution peaks around 6:00 AM (PM10: 68.2/100).

Will air quality be worse tomorrow in St. Petersburg?

On 17 July 2026, air quality conditions in St. Petersburg will be better than today, with O3 forecast at fair at 26.9/100. Pollution peaks around 12:00 AM (PM10: 58.3/100).

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.

Want to see air quality forecasts for other cities in United States?

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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