Worst air pollution Thessaloníki, today and tomorrow
Today (30 August): Air quality in Thessaloníki is moderate. AQI and O3 are moderate; PM2.5, NO2, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 42.5/100).
Tomorrow (31 August 2026): Air quality in Thessaloníki is moderate. PM2.5 decreases to good; NO2 increases to moderate; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 44.1/100). Airmine updates local air quality forecasts four times daily.
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Thessaloniki's air quality faces significant winter challenges, with residential wood burning in response to energy poverty combining with heavy traffic on the Thessaloniki ring road and port emissions from the busy harbour to elevate PM2.5 and NO₂. The Thermaikos Gulf provides ventilation on northwesterly winds, while the surrounding hills and the Axios valley can channel or concentrate emissions depending on wind direction.
Today - 30 August | Pollution peaks at 16:00
AQI:
Moderate
42.5/100
PM2.5 (fine particles):
Fair
24.6/100
PM10 (coarse particles):
Good
11.2/100
NO2 (nitrogen dioxide):
Fair
39.8/100
O3 (ozone):
Moderate
42.5/100
SO2 (sulfur dioxide):
Good
8.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Fair
28.2/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 05:00
AQI:
Moderate
44.1/100
PM2.5 (fine particles):
Good
16.4/100
PM10 (coarse particles):
Good
9.8/100
NO2 (nitrogen dioxide):
Moderate
44.1/100
O3 (ozone):
Moderate
43.4/100
SO2 (sulfur dioxide):
Good
9.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.1/100
PM1 (ultrafine particles):
Good
17.5/100
Pollen forecast in Thessaloníki
View pollen forecastFrequently Asked Questions
Is air quality bad in Thessaloníki right now?
On 30 August 2026, overall air quality in Thessaloníki is moderate. AQI is the main air quality indicator at 42.5/100. Pollution peaks around 4:00 PM (O3: 42.5/100).
Will air quality be worse tomorrow in Thessaloníki?
On 31 August 2026, air quality conditions in Thessaloníki will be similar to today, with AQI forecast at moderate at 44.1/100. Pollution peaks around 5:00 AM (NO2: 44.1/100).
When is air pollution at its worst in Thessaloníki?
Reduced air quality in Thessaloníki is most likely when olive and cypress peaks pollen peaks, alongside periods of residential wood burning in response to energy poverty; things typically settle down again once the weather pattern shifts.
Are air quality levels in Thessaloníki 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: 30 August 2026 at 14:32 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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