Worst air pollution Split, today and tomorrow
Today (16 July): Air quality in Split is fair. HCHO is fair; AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 56.0/100).
Tomorrow (17 July 2026): Air quality in Split is poor. AQI worsens to poor; O3 increases to poor; HCHO decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 63.1/100). 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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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 - 16 July | Pollution peaks at 15:00
AQI:
Medium
56.0/100
PM2.5 (fine particles):
Good
12.5/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
19.9/100
O3 (ozone):
Medium
56.0/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.1/100
PM1 (ultrafine particles):
Good
14.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Poor
63.1/100
PM2.5 (fine particles):
Good
7.8/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
18.0/100
O3 (ozone):
Poor
63.1/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.6/100
PM1 (ultrafine particles):
Good
9.0/100
Pollen forecast in Split
View pollen forecastFrequently Asked Questions
Is air quality bad in Split right now?
On 16 July 2026, overall air quality in Split is fair. HCHO is the main pollutant at 20.1/100. Pollution peaks around 3:00 PM (O3: 56.0/100).
Will air quality be worse tomorrow in Split?
On 17 July 2026, air quality conditions in Split will be worse than today, with AQI forecast at poor at 63.1/100. Pollution peaks around 2:00 PM (O3: 63.1/100).
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.
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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