Worst air pollution Eibar, today and tomorrow

Today (9 August): Air quality in Eibar is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 34.6/100).
Tomorrow (10 August 2026): Air quality in Eibar is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 31.1/100). Airmine updates local air quality forecasts four times daily.

Get the full experience in the Airmine app.

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

In Eibar, damp-weather heating smoke in winter and local traffic have the largest effect on air quality. 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 - 9 August | Pollution peaks at 14:00

AQI:

Fair

34.6/100

PM2.5 (fine particles):

Good

7.6/100

PM10 (coarse particles):

Good

2.6/100

NO2 (nitrogen dioxide):

Good

18.9/100

O3 (ozone):

Fair

34.6/100

SO2 (sulfur dioxide):

Good

1.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

7.5/100

PM1 (ultrafine particles):

Good

9.1/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 17:00

AQI:

Fair

31.1/100

PM2.5 (fine particles):

Good

8.5/100

PM10 (coarse particles):

Good

4.5/100

NO2 (nitrogen dioxide):

Fair

23.9/100

O3 (ozone):

Fair

31.1/100

SO2 (sulfur dioxide):

Good

1.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.2/100

PM1 (ultrafine particles):

Good

7.2/100

Pollen forecast in Eibar

View pollen forecast

Sports venues in Eibar

Frequently Asked Questions

Is air quality bad in Eibar right now?

On 9 August 2026, overall air quality in Eibar is fair. AQI is the main air quality indicator at 34.6/100. Pollution peaks around 2:00 PM (O3: 34.6/100).

Will air quality be worse tomorrow in Eibar?

On 10 August 2026, air quality conditions in Eibar will be similar to today, with AQI forecast at fair at 31.1/100. Pollution peaks around 5:00 PM (O3: 31.1/100).

When is air pollution at its worst in Eibar?

How do the seasons affect air quality in Eibar? The coldest months usually see the year's poorest conditions, since calm anticyclonic weather holds local traffic and wood-burning pollution near street level. Air quality usually improves through spring, helped by more frequent frontal systems that bring rain and stronger winds to disperse local emissions. Summer can bring periodic wildfire smoke on top of the usual ozone build-up from intense heat and sunshine. Autumn typically starts mild and can still see occasional ozone or dust episodes before rain and cooler temperatures gradually restore cleaner conditions. Being close to the Atlantic, this area benefits from regular rainfall and wind that help keep pollution from building up for long.

Are air quality levels in Eibar 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.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

Want to see air quality forecasts for other cities in Spain?

Check air quality in other popular cities:

Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

Get the full experience in the Airmine app.