Worst air pollution Umag, today and tomorrow
Today (9 August): Air quality in Umag is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 51.3/100).
Tomorrow (10 August 2026): Air quality in Umag is poor. AQI worsens to poor; O3 increases to poor; HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 68.0/100). Airmine updates local air quality forecasts four times daily.
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Umag's setting on the Istrian peninsula's Adriatic coast means summer tourist traffic and port activity drives most of the local variation in air quality across the year. The Istria terrain nearby can trap emissions under stable conditions, though stronger winds or rainfall usually bring noticeable improvement, and residents typically notice the clearest air during the more unsettled, windier stretches of the year.
Today - 9 August | Pollution peaks at 15:00
AQI:
Medium
51.3/100
PM2.5 (fine particles):
Good
6.9/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
3.5/100
O3 (ozone):
Medium
51.3/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.8/100
PM1 (ultrafine particles):
Good
8.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Poor
68.0/100
PM2.5 (fine particles):
Good
8.5/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
4.5/100
O3 (ozone):
Poor
68.0/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.0/100
PM1 (ultrafine particles):
Good
11.1/100
Pollen forecast in Umag
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Frequently Asked Questions
Is air quality bad in Umag right now?
On 9 August 2026, overall air quality in Umag is medium. AQI is the main air quality indicator at 51.3/100. Pollution peaks around 3:00 PM (O3: 51.3/100).
Will air quality be worse tomorrow in Umag?
On 10 August 2026, air quality conditions in Umag will be worse than today, with AQI forecast at poor at 68.0/100. Pollution peaks around 2:00 PM (O3: 68.0/100).
When is air pollution at its worst in Umag?
People in Umag tend to notice worse air when oak and olive pollen peaks, or because of summer tourist traffic and port activity; the remainder of the year in Istria generally brings clearer, steadier conditions, especially on breezier days that help disperse local emissions across the surrounding countryside and built-up streets alike.
Are air quality levels in Umag 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: 9 August 2026 at 20:27 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.
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