What is the air quality in Maia?

Maia, Portugal has an annual US AQI of 54 (Reasonable) and average PM2.5 of 11.4 µg/m³, ranking #1205 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Maia?

June is typically the cleanest month (AQI 48) and January the most polluted (AQI 61).

Where does Maia's air quality data come from?

PM2.5: 1998–2026 (satellite 1998–2024, model 2025–2026). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Maia, Portugal — Air Quality & Clean City Guide 2026

Maia Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1205	Maia, Portugal	Europe	AQI 54	PM2.5 11.4 µg/m³