Worst air pollution Valletta, today and tomorrow
Today (9 August): 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 6:00 PM (O3: 37.6/100).
Tomorrow (10 August 2026): Air quality in Valletta is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 44.5/100). 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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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 - 9 August | Pollution peaks at 18:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
16.1/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Good
5.0/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
10.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Medium
44.5/100
PM2.5 (fine particles):
Good
15.5/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Good
6.2/100
O3 (ozone):
Medium
44.5/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.4/100
PM1 (ultrafine particles):
Good
10.8/100
Frequently Asked Questions
Is air quality bad in Valletta right now?
On 9 August 2026, overall air quality in Valletta is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 6:00 PM (O3: 37.6/100).
Will air quality be worse tomorrow in Valletta?
On 10 August 2026, air quality conditions in Valletta will be better than today, with AQI forecast at medium at 44.5/100. Pollution peaks around 4:00 PM (O3: 44.5/100).
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.
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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