Worst air pollution Karlovac, today and tomorrow
Today (16 July): Air quality in Karlovac is fair. NO2 and HCHO are fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 41.2/100).
Tomorrow (17 July 2026): Air quality in Karlovac is fair. NO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 45.6/100). 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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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 - 16 July | Pollution peaks at 17:00
AQI:
Medium
41.2/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Fair
33.6/100
O3 (ozone):
Medium
41.2/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
21.0/100
PM1 (ultrafine particles):
Good
12.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
45.6/100
PM2.5 (fine particles):
Good
16.4/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Medium
41.3/100
O3 (ozone):
Medium
45.6/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
24.1/100
PM1 (ultrafine particles):
Fair
21.3/100
Pollen forecast in Karlovac
View pollen forecastFrequently Asked Questions
Is air quality bad in Karlovac right now?
On 16 July 2026, overall air quality in Karlovac is fair. NO2 is the main pollutant at 33.6/100. Pollution peaks around 5:00 PM (O3: 41.2/100).
Will air quality be worse tomorrow in Karlovac?
On 17 July 2026, air quality conditions in Karlovac will be similar to today, with HCHO forecast at fair at 24.1/100. Pollution peaks around 12:00 PM (O3: 45.6/100).
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.
Want to see air quality forecasts for other cities in Croatia?
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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