Worst air pollution Siracusa, today and tomorrow
Today (16 July): Air quality in Siracusa is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 64.6/100).
Tomorrow (17 July 2026): Air quality in Siracusa is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 49.5/100). 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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Siracusa's air quality faces significant industrial challenges from the Augusta-Priolo-Melilli petrochemical corridor to the north, one of Italy's largest refinery and chemical clusters generating elevated SO₂, benzene, and industrial PM2.5. The Ionian Sea breezes provide coastal ventilation, while the enclosed Augusta Bay geometry can concentrate industrial plumes under westerly conditions throughout the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Poor
64.6/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Good
13.1/100
O3 (ozone):
Poor
64.6/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.8/100
PM1 (ultrafine particles):
Good
10.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Medium
49.5/100
PM2.5 (fine particles):
Good
11.1/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Good
12.6/100
O3 (ozone):
Medium
49.5/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.3/100
PM1 (ultrafine particles):
Good
9.7/100
Pollen forecast in Siracusa
View pollen forecastFrequently Asked Questions
Is air quality bad in Siracusa right now?
On 16 July 2026, overall air quality in Siracusa is poor. AQI is the main air quality indicator at 64.6/100. Pollution peaks around 3:00 PM (O3: 64.6/100).
Will air quality be worse tomorrow in Siracusa?
On 17 July 2026, air quality conditions in Siracusa will be better than today, with AQI forecast at medium at 49.5/100. Pollution peaks around 1:00 PM (O3: 49.5/100).
When is air pollution at its worst in Siracusa?
Siracusa residents notice reduced air quality mainly when olive and citrus pollen peaks, and during spells of the Augusta-Priolo-Melilli petrochemical corridor to the north, one of Italy's largest refinery and chemical clusters; a change of season or a spell of wind usually clears things up again.
Are air quality levels in Siracusa 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 Italy?
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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