Worst air pollution Marín, today and tomorrow
Today (16 July): Air quality in Marín is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 36.3/100).
Tomorrow (17 July 2026): Air quality in Marín is fair. All pollutants stay as today. Pollution peaks around 7:00 PM (O3: 38.8/100). 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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In Marín, local traffic and damp-weather heating smoke in winter are the main local influences on air quality. Levels stay low most of the year, with brief dips during still, foggy spells. Frequent rain washes pollutants out of the air more often than in drier parts of Spain.
Today - 16 July | Pollution peaks at 19:00
AQI:
Fair
36.3/100
PM2.5 (fine particles):
Good
12.3/100
PM10 (coarse particles):
Good
9.9/100
NO2 (nitrogen dioxide):
Good
4.8/100
O3 (ozone):
Fair
36.3/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
5.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 19:00
AQI:
Fair
38.8/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Good
7.7/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Good
6.0/100
Pollen forecast in Marín
View pollen forecastFrequently Asked Questions
Is air quality bad in Marín right now?
On 16 July 2026, overall air quality in Marín is fair. AQI is the main air quality indicator at 36.3/100. Pollution peaks around 7:00 PM (O3: 36.3/100).
Will air quality be worse tomorrow in Marín?
On 17 July 2026, air quality conditions in Marín will be similar to today, with AQI forecast at fair at 38.8/100. Pollution peaks around 7:00 PM (O3: 38.8/100).
When is air pollution at its worst in Marín?
How do the seasons affect air quality in Marín? The year's lowest air quality readings tend to cluster in winter, when high-pressure systems suppress the mixing that would otherwise clear away exhaust and smoke. Conditions tend to ease in spring, as more active weather systems bring the wind and rain needed to disperse ground-level pollution. The long, hot days of summer favour ozone build-up, which can spike on the stillest, sunniest afternoons. Autumn is typically a recovery period, with increasing rainfall and cooler air gradually reducing both ozone and traffic-related pollution. The area's maritime climate, with frequent fronts rolling in off the Atlantic, generally prevents pollution from lingering for long.
Are air quality levels in Marín 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.
Want to see air quality forecasts for other cities in Spain?
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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