Worst air pollution St. Augustine, today and tomorrow
Today (16 July): Air quality in St. Augustine is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 29.8/100).
Tomorrow (17 July 2026): Air quality in St. Augustine is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 26.5/100). 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. Augustine's air quality benefits from its Atlantic coastal position in northeast Florida, with consistent onshore sea breezes providing reliable maritime ventilation along the Florida First Coast. Vehicle emissions from US-1 and I-95 are the primary local sources, while summer ozone from subtropical heat and the Jacksonville-St. Augustine metropolitan traffic is the primary warm-season concern, and the flat coastal terrain and Atlantic exposure prevent significant pollution accumulation.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
29.8/100
PM2.5 (fine particles):
Good
19.2/100
PM10 (coarse particles):
Fair
27.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
29.8/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
3.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
26.5/100
PM2.5 (fine particles):
Good
15.6/100
PM10 (coarse particles):
Good
15.7/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
26.5/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.8/100
PM1 (ultrafine particles):
Good
3.4/100
Pollen forecast in St. Augustine
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in St. Augustine
Frequently Asked Questions
Is air quality bad in St. Augustine right now?
On 16 July 2026, overall air quality in St. Augustine is fair. AQI is the main air quality indicator at 29.8/100. Pollution peaks around 12:00 PM (O3: 29.8/100).
Will air quality be worse tomorrow in St. Augustine?
On 17 July 2026, air quality conditions in St. Augustine will be similar to today, with AQI forecast at fair at 26.5/100. Pollution peaks around 1:00 PM (O3: 26.5/100).
When is air pollution at its worst in St. Augustine?
St. Augustine sees air quality change through the year, as the wet season's frequent storms generally keep particulate levels lower than in the dry months; by contrast, wildfire and prescribed-burn smoke are most common in the drier months from autumn through spring. Inland areas tend to see more smoke buildup than locations closer to the coast.
Are air quality levels in St. Augustine 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