Worst air pollution Portugalete, today and tomorrow
Today (16 July): Air quality in Portugalete is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 33.2/100).
Tomorrow (17 July 2026): Air quality in Portugalete is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 27.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Portugalete's dominant local factors are local traffic and damp-weather heating smoke in winter. Air quality is generally very good thanks to frequent rain and constant Atlantic wind. Coastal fog can occasionally trap smoke and traffic fumes close to the ground overnight.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Good
9.1/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
5.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
27.6/100
PM2.5 (fine particles):
Good
4.5/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
5.1/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
3.2/100
Pollen forecast in Portugalete
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Portugalete
Frequently Asked Questions
Is air quality bad in Portugalete right now?
On 16 July 2026, overall air quality in Portugalete is fair. AQI is the main air quality indicator at 33.2/100. Pollution peaks around 5:00 PM (O3: 33.2/100).
Will air quality be worse tomorrow in Portugalete?
On 17 July 2026, air quality conditions in Portugalete will be similar to today, with AQI forecast at fair at 27.6/100. Pollution peaks around 2:00 PM (O3: 27.6/100).
When is air pollution at its worst in Portugalete?
Does air quality in Portugalete vary by season? Air quality often reaches its yearly low in the depths of winter, when still, cold air holds local emissions from traffic and heating close to ground level. As spring progresses, wetter and windier conditions generally help flush out the traffic and heating pollution that built up over winter. Hot, stagnant summer air favours ozone formation, and dry vegetation nearby occasionally adds wildfire smoke to the mix during peak heat. Early autumn can still bring warm, stagnant spells before the season's returning rain and wind begin clearing the air. Proximity to the Atlantic brings enough rain and wind through most of the year to limit how long pollution episodes last here.
Are air quality levels in Portugalete based on measurements or forecasts?
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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app