What is the air quality in Piraeus?

Piraeus, Greece has an annual US AQI of 66 (Polluted) and average PM2.5 of 16 µg/m³, ranking #2813 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Piraeus?

April is typically the cleanest month (AQI 63) and July the most polluted (AQI 74).

Where does Piraeus'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.

Piraeus, Greece — Air Quality & Clean City Guide 2026

Piraeus Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2813	Piraeus, Greece	Europe	AQI 66	PM2.5 16 µg/m³