Worst air pollution Ogunquit, today and tomorrow

On 20 September 2026, overall air quality in Ogunquit is moderate. AQI is the main air quality indicator at 41.2/100. Pollution peaks around 12:00 PM (O3: 41.2/100).

On 21 September 2026, air quality conditions in Ogunquit will be better than today, with AQI forecast at fair at 36.9/100. Pollution peaks around 12:00 PM (O3: 36.9/100).

Conditions in Ogunquit vary noticeably across the seasons. In short, the shoulder seasons bring the most consistently clean air of the year, whereas hot, humid summer days bring the highest ozone risk, often worsened by pollution transported in from other regions. Coastal sea breezes can offer some relief from inland summer ozone buildup.

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.

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.