Worst air pollution Karlovac, today and tomorrow
Today (9 August): Air quality in Karlovac is fair. NO2, HCHO, and PM1 are fair; AQI and O3 are medium; PM2.5, PM10, SO2, and CO are good. Pollution peaks around 12:00 PM (O3: 47.7/100).
Tomorrow (10 August 2026): Air quality in Karlovac is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 48.4/100). Airmine updates local air quality forecasts four times daily.
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Sitting where four rivers meet on the Croatian karst plain, Karlovac sees vehicle traffic and light industry across the plain as the dominant local influence on air quality, while the surrounding Karlovac terrain affects how pollutants disperse. Calm, still conditions tend to let levels build here more than in breezier weather, and the local topography around Karlovac can trap emissions for longer stretches during stable atmospheric periods.
Today - 9 August | Pollution peaks at 12:00
AQI:
Medium
47.7/100
PM2.5 (fine particles):
Good
15.8/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Fair
33.9/100
O3 (ozone):
Medium
47.7/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.1/100
PM1 (ultrafine particles):
Fair
20.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 12:00
AQI:
Medium
48.4/100
PM2.5 (fine particles):
Good
18.8/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
35.2/100
O3 (ozone):
Medium
48.4/100
SO2 (sulfur dioxide):
Good
4.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
26.6/100
PM1 (ultrafine particles):
Fair
24.4/100
Pollen forecast in Karlovac
View pollen forecastFrequently Asked Questions
Is air quality bad in Karlovac right now?
On 9 August 2026, overall air quality in Karlovac is fair. NO2 is the main pollutant at 33.9/100. Pollution peaks around 12:00 PM (O3: 47.7/100).
Will air quality be worse tomorrow in Karlovac?
On 10 August 2026, air quality conditions in Karlovac will be similar to today, with NO2 forecast at fair at 35.2/100. Pollution peaks around 12:00 PM (O3: 48.4/100).
When is air pollution at its worst in Karlovac?
Watch for reduced air quality in Karlovac around plane and oak pollen peaks and during vehicle traffic and light industry across the plain; conditions elsewhere in the Karlovac calendar are usually noticeably better, especially once the weather turns more active.
Are air quality levels in Karlovac 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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