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St. Petersburg Moderate

St. Petersburg, Florida

Updated: Jul 9, 2026, 1:00 PM

510500
Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Current Weather

34.1°C
Temperature
59%
Humidity
8.9
mph wind
Clear sky
Conditions

Pollutant Breakdown

51
PM2.5
µg/m³ · Fine particles
38
PM10
µg/m³ · Coarse particles
18.7
Ozone
ppb · Ground-level ozone
1
NO₂
ppb · Nitrogen dioxide
SO₂
ppb · Sulfur dioxide
CO
ppm · Carbon monoxide

Dominant pollutant: PM25

PM2.5 Forecast (next 7 days)

Tue
7/7
18
avg
Wed
7/8
27
avg
Thu
7/9
57
avg
Fri
7/10
66
avg
Sat
7/11
29
avg
Sun
7/12
15
avg
Mon
7/13
13
avg

Health Guidance

⚠️
Unusually sensitive people: Consider reducing prolonged outdoor exertion.
General population: No restrictions for most people.
💨
Keep windows closed if AQI is Unhealthy or above. Use HEPA air purifiers indoors.

Data from: Florida Department of Environmental Protection, Air Now - US EPA, World Air Quality Index Project

Is the air safe in St. Petersburg today?

The current Air Quality Index (AQI) in St. Petersburg is 51, which is classified as "Moderate". Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.

Air quality in St. Petersburg, Florida is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

AQI Scale Reference

0–50
Good
51–100
Moderate
101–150
Unhealthy for Sensitive Groups
151–200
Unhealthy
201–300
Very Unhealthy
301+
Hazardous