What is the air quality in St. Simons Island GA?

St. Simons Island GA, United States of America has an annual US AQI of 49 (Reasonable) and average PM2.5 of 9.1 µg/m³, ranking #649 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in St. Simons Island GA?

December is typically the cleanest month (AQI 43) and July the most polluted (AQI 56).

Where does St. Simons Island GA's air quality data come from?

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

St. Simons Island GA, United States of America — Air Quality & Clean City Guide 2026

St. Simons Island GA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
649	St. Simons Island GA, United States of America	North America	AQI 49	PM2.5 9.1 µg/m³