Choose another country or region to see content specific to your location and shop online.

Air quality in Porto

Air quality index (AQI⁺) and PM2.5 air pollution in Porto • 18:26, Jun 07

Live most polluted city ranking

Real-time Porto most polluted city ranking

#	Cities	AQI⁺ US
1	Matosinhos	55
2	Avintes	50
3	Maia	44
4	Porto	33
5	Gondomar	28
6	Valongo	24
7	Paços de Ferreira	22
8	Canidelo	19
9	Senhora da Hora	12

Live cleanest city ranking

Real-time Porto cleanest city ranking

#	Cities	AQI⁺ US
1	Senhora da Hora	12
2	Canidelo	19
3	Paços de Ferreira	22
4	Valongo	24
5	Gondomar	28
6	Porto	33
7	Maia	44
8	Avintes	50
9	Matosinhos	55

Wildfire map spotlight: Seven Cabins Fire, New Mexico

Wildfire map spotlight: Border 6 Fire, California

Smoke rises from a wildfire burning through forest vegetation.

Wildfire Map Spotlight: Hummingbird Fire, New Mexico

Which is the most polluted city in Porto?

globe background

Connect With IQAir

Get exclusive articles, product updates, tips, and occasional offers delivered to your inbox. You can unsubscribe at any time.

View Privacy Policy

Privacy Policy© 2026 IQAir. All rights reserved