Worst air pollution Girona, today and tomorrow
Today (16 July): Air quality in Girona is fair. HCHO is fair; AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 45.2/100).
Tomorrow (17 July 2026): Air quality in Girona is fair. NO2 increases to fair; HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 44.6/100). 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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Girona's air quality benefits from its position in the Onyar valley between the Pyrenean foothills and the Costa Brava, with consistent Tramontane wind from the north providing powerful periodic ventilation that effectively flushes the enclosed valley. Vehicle traffic on the AP-7 motorway and tourism traffic are the primary local sources, while the Tramontane wind's frequency and intensity makes Girona one of the Catalan interior's more reliably ventilated urban environments despite the valley's partial topographic enclosure.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
45.2/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Good
18.0/100
O3 (ozone):
Medium
45.2/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.3/100
PM1 (ultrafine particles):
Good
9.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Medium
44.6/100
PM2.5 (fine particles):
Good
9.9/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Fair
20.6/100
O3 (ozone):
Medium
44.6/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.5/100
PM1 (ultrafine particles):
Good
7.9/100
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Frequently Asked Questions
Is air quality bad in Girona right now?
On 16 July 2026, overall air quality in Girona is fair. HCHO is the main pollutant at 20.3/100. Pollution peaks around 1:00 PM (O3: 45.2/100).
Will air quality be worse tomorrow in Girona?
On 17 July 2026, air quality conditions in Girona will be similar to today, with NO2 forecast at fair at 20.6/100. Pollution peaks around 3:00 PM (O3: 44.6/100).
When is air pollution at its worst in Girona?
What is the yearly air quality pattern like in Girona? The winter months typically bring the weakest air quality of the year, as calm anticyclonic conditions trap vehicle and heating pollution near the surface. Spring often marks a turning point, with increasing storminess and rainfall helping to clear accumulated exhaust and smoke from the air. Summer readings are shaped mainly by ozone, which builds under strong sun and heat, sometimes worsened by drifting wildfire smoke. Autumn usually sees a steady return to cleaner conditions as the ozone-favouring heat of summer fades and rainfall picks up. Sea breezes along this stretch of coast generally support air quality, but summer holiday traffic and occasional calima dust events can interrupt that.
Are air quality levels in Girona 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