Worst air pollution Valletta, today and tomorrow
Today (16 July): Air quality in Valletta is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (O3: 36.5/100).
Tomorrow (17 July 2026): Air quality in Valletta is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 50.2/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Valletta's air quality benefits from its exceptional Mediterranean Sea harbour city position in the Grand Harbour, with consistent Mediterranean and Scirocco and Tramontane winds providing reliable maritime ventilation. Vehicle traffic on surrounding roads and the tourism, government, and port operations contribute local sources, while the outstanding Mediterranean sea exposure and the unique Grand Harbour geography generally maintain Valletta among the Mediterranean's more moderately ventilated small historic capital cities throughout most of the year.
Today - 16 July | Pollution peaks at 22:00
AQI:
Fair
36.5/100
PM2.5 (fine particles):
Good
19.0/100
PM10 (coarse particles):
Good
10.0/100
NO2 (nitrogen dioxide):
Good
10.7/100
O3 (ozone):
Fair
36.5/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
13.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Medium
50.2/100
PM2.5 (fine particles):
Good
17.7/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Good
11.7/100
O3 (ozone):
Medium
50.2/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
11.1/100
Frequently Asked Questions
Is air quality bad in Valletta right now?
On 16 July 2026, overall air quality in Valletta is fair. AQI is the main air quality indicator at 36.5/100. Pollution peaks around 10:00 PM (O3: 36.5/100).
Will air quality be worse tomorrow in Valletta?
On 17 July 2026, air quality conditions in Valletta will be better than today, with AQI forecast at medium at 50.2/100. Pollution peaks around 5:00 PM (O3: 50.2/100).
When is air pollution at its worst in Valletta?
In Valletta, traffic emissions, harbour and shipping traffic, along with tourism-related traffic are the main local sources, with conditions worsening when maritime winds die down. Sea breezes typically keep conditions in check, except during still weather. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Valletta 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