What is the air quality in Galway?

Galway, Ireland has an annual US AQI of 40 (Reasonable) and average PM2.5 of 6.9 µg/m³, ranking #254 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Galway?

July is typically the cleanest month (AQI 31) and March the most polluted (AQI 50).

Where does Galway's air quality data come from?

PM2.5: 1998–2025 (satellite 1998–2024, model 2025). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Galway, Ireland — Air Quality & Clean City Guide 2026

Galway Air Quality Data

Global rank	City	Continent	AQI	PM2.5
254	Galway, Ireland	Europe	AQI 40	PM2.5 6.9 µg/m³