Worst air pollution San Vicente de Baracaldo, today and tomorrow
Today (30 August): Air quality in San Vicente de Baracaldo is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 25.0/100).
Tomorrow (31 August 2026): Air quality in San Vicente de Baracaldo is good. AQI improves to good; NO2 decreases to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 19.9/100). Airmine updates local air quality forecasts four times daily.
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San Vicente de Baracaldo's air quality reflects the Nervión valley in the Basque industrial corridor adjacent to Bilbao, with the surrounding heavy manufacturing and petrochemical legacy generating elevated PM2.5 and NOₓ alongside vehicle traffic on the AP-68. Atlantic westerlies from the Bay of Biscay generally provide maritime ventilation, while the enclosed Nervión valley's topographic concentration represents the primary structural air quality challenge throughout the year.
Today - 30 August | Pollution peaks at 15:00
AQI:
Fair
25.0/100
PM2.5 (fine particles):
Good
3.1/100
PM10 (coarse particles):
Good
0.9/100
NO2 (nitrogen dioxide):
Fair
22.0/100
O3 (ozone):
Fair
25.0/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
3.8/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 17:00
AQI:
Good
19.9/100
PM2.5 (fine particles):
Good
5.0/100
PM10 (coarse particles):
Good
1.9/100
NO2 (nitrogen dioxide):
Good
17.6/100
O3 (ozone):
Good
19.9/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
4.4/100
Pollen forecast in San Vicente de Baracaldo
View pollen forecastFrequently Asked Questions
Is air quality bad in San Vicente de Baracaldo right now?
On 30 August 2026, overall air quality in San Vicente de Baracaldo is fair. AQI is the main air quality indicator at 25.0/100. Pollution peaks around 3:00 PM (O3: 25.0/100).
Will air quality be worse tomorrow in San Vicente de Baracaldo?
On 31 August 2026, air quality conditions in San Vicente de Baracaldo will be better than today, with AQI forecast at good at 19.9/100. Pollution peaks around 5:00 PM (O3: 19.9/100).
When is air pollution at its worst in San Vicente de Baracaldo?
How does air quality change throughout the year in San Vicente de Baracaldo? Cold, windless spells in December and January are usually when conditions dip most, as heating emissions and traffic fumes accumulate under a stable atmosphere. Spring usually brings an improvement as more frequent rain and stronger winds help clear the air and wash out pollutants that built up over winter. High summer temperatures and strong sun exposure drive ozone levels up, occasionally combined with smoke from nearby wildfires during dry spells. Early autumn can still bring warm, stagnant spells before the season's returning rain and wind begin clearing the air. This region's wetter, windier Atlantic climate generally keeps annual air quality more consistent than in Spain's drier interior and south.
Are air quality levels in San Vicente de Baracaldo 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: 30 August 2026 at 14:32 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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