Worst air pollution Barceloneta - Barcelona, today and tomorrow
Today (20 September): Air quality in Barceloneta is moderate. AQI and PM2.5 are moderate; NO2 and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (PM2.5: 41.0/100).
Tomorrow (21 September 2026): Air quality in Barceloneta is moderate. NO2 increases to moderate; all other pollutants stay as today. Pollution peaks around 11:00 AM (NO2: 45.3/100). Airmine updates local air quality forecasts four times daily.
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Barceloneta's air quality is shaped mostly by port and shipping emissions and construction dust. Air quality is generally worse near the port and main traffic corridors. Low-emission zone restrictions in the centre have reduced traffic-related pollution somewhat.
Today - 20 September | Pollution peaks at 09:00
AQI:
Moderate
41.0/100
PM2.5 (fine particles):
Moderate
41.0/100
PM10 (coarse particles):
Good
17.8/100
NO2 (nitrogen dioxide):
Fair
39.2/100
O3 (ozone):
Fair
21.6/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
10.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 11:00
AQI:
Moderate
45.3/100
PM2.5 (fine particles):
Moderate
43.5/100
PM10 (coarse particles):
Good
19.8/100
NO2 (nitrogen dioxide):
Moderate
45.3/100
O3 (ozone):
Fair
20.1/100
SO2 (sulfur dioxide):
Good
4.6/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Good
15.6/100
Other Landmarks in Barcelona
Sports venues in Barcelona
Frequently Asked Questions
Is air quality bad in Barceloneta right now?
On 20 September 2026, overall air quality in Barceloneta is moderate. AQI is the main air quality indicator at 41.0/100. Pollution peaks around 9:00 AM (PM2.5: 41.0/100).
Will air quality be worse tomorrow in Barceloneta?
On 21 September 2026, air quality conditions in Barceloneta will be similar to today, with AQI forecast at moderate at 45.3/100. Pollution peaks around 11:00 AM (NO2: 45.3/100).
When is air pollution at its worst in Barceloneta?
How does air quality change throughout the year in Barceloneta? Winter is generally the most challenging season, since low wind speeds and temperature inversions prevent traffic and wood-smoke pollution from dispersing. As spring progresses, wetter and windier conditions generally help flush out the traffic and heating pollution that built up over winter. The heat of summer drives up ozone formation, and dry conditions occasionally bring smoke from regional wildfires into the mix. Autumn usually sees a steady return to cleaner conditions as the ozone-favouring heat of summer fades and rainfall picks up. The Mediterranean coast's sea breezes generally help disperse pollution, though summer tourism traffic and occasional Saharan dust can still push levels up.
Are air quality levels in Barceloneta 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.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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