Worst air pollution Galway, today and tomorrow

On 21 July 2026, overall air quality in Galway is fair. AQI is the main air quality indicator at 33.3/100. Pollution peaks around 5:00 AM (NO2: 33.3/100).

On 22 July 2026, air quality conditions in Galway will be similar to today, with AQI forecast at fair at 26.0/100. Pollution peaks around 6:00 AM (NO2: 26.0/100).

Galway sees clear seasonal swings in air quality, driven in part by its position where the River Corrib meets Galway Bay. Damp, breezy conditions dominate most of the year, though calm, cold winter evenings occasionally let traffic fumes and coal or turf smoke linger over the city. Atlantic weather systems pass through frequently enough that pollution rarely lingers for long.

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.