Worst air pollution Ourense, today and tomorrow
Today (16 July): Air quality in Ourense 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 Ourense 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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Ourense's air quality reflects the enclosed Miño river valley in Galicia, with the surrounding Larouco, Invernadeiro, and Faro de Avión mountains creating significant topographic enclosure that traps vehicle emissions from the A-52 motorway and thermal spa tourism traffic under calm conditions. Atlantic westerlies from the Galician coast provide the primary ventilation corridor, while winter inversions in the deep valley can concentrate emissions significantly.
Today - 16 July | Pollution peaks at 19:00
AQI:
Fair
36.3/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
8.8/100
NO2 (nitrogen dioxide):
Good
2.2/100
O3 (ozone):
Fair
36.3/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
4.9/100
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
9.1/100
PM10 (coarse particles):
Good
7.3/100
NO2 (nitrogen dioxide):
Good
3.4/100
O3 (ozone):
Fair
38.8/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Good
5.4/100
Pollen forecast in Ourense
View pollen forecastFrequently Asked Questions
Is air quality bad in Ourense right now?
On 16 July 2026, overall air quality in Ourense 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 Ourense?
On 17 July 2026, air quality conditions in Ourense 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 Ourense?
When is air quality typically worst in Ourense? 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. Air quality usually improves through spring, helped by more frequent frontal systems that bring rain and stronger winds to disperse local emissions. Summer's intense heat and sunshine create ideal conditions for ozone formation, sometimes overshadowing the lower traffic volumes typical of the season. 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 Ourense 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