Worst air pollution Split, today and tomorrow
Today (9 August): Air quality in Split is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 51.6/100).
Tomorrow (10 August 2026): Air quality in Split is fair. HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 54.8/100). Airmine updates local air quality forecasts four times daily.
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Split's air quality benefits from its exceptional Dalmatian coast position, with consistent Adriatic sea breezes and the powerful Bura wind from the Dinaric Alps providing some of the eastern Adriatic's most effective natural ventilation. Vehicle traffic on the A1 motorway and the Split ferry terminal's cruise and cargo vessel operations contribute local sources, while the Mosor and Kozjak massifs create dramatic topographic variation between the coastal strip and the inland Dalmatian hinterland, with sea breeze ventilation generally maintaining good to moderate conditions.
Today - 9 August | Pollution peaks at 14:00
AQI:
Medium
51.6/100
PM2.5 (fine particles):
Good
10.1/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Good
13.4/100
O3 (ozone):
Medium
51.6/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.8/100
PM1 (ultrafine particles):
Good
13.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 13:00
AQI:
Medium
54.8/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
14.9/100
O3 (ozone):
Medium
54.8/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.4/100
PM1 (ultrafine particles):
Good
10.1/100
Pollen forecast in Split
View pollen forecastFrequently Asked Questions
Is air quality bad in Split right now?
On 9 August 2026, overall air quality in Split is medium. AQI is the main air quality indicator at 51.6/100. Pollution peaks around 2:00 PM (O3: 51.6/100).
Will air quality be worse tomorrow in Split?
On 10 August 2026, air quality conditions in Split will be worse than today, with HCHO forecast at fair at 20.4/100. Pollution peaks around 1:00 PM (O3: 54.8/100).
When is air pollution at its worst in Split?
You're quickest to notice worse air in Split when local tree and grass allergens peaks, or due to vehicle traffic on the A1 motorway and the Split ferry terminal's cruise and cargo vessel operations; otherwise, the area's setting generally supports clear, well-ventilated conditions.
Are air quality levels in Split 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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