Worst air pollution Šiauliai, today and tomorrow
Today (9 August): Air quality in Šiauliai is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 22.9/100).
Tomorrow (10 August 2026): Air quality in Šiauliai is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 34.7/100). Airmine updates local air quality forecasts four times daily.
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Šiauliai's air quality reflects the flat Lithuanian northern highland position, with vehicle traffic on the Via Baltica A1 motorway and surrounding manufacturing and agricultural operations contributing local sources. Baltic westerlies generally provide reasonable ventilation on most days, while winter residential wood and heating oil burning generates seasonal PM2.5 elevation and the flat terrain allows reasonable dispersal, generally maintaining Šiauliai among Lithuania's more moderate urban environments.
Today - 9 August | Pollution peaks at 23:00
AQI:
Fair
22.9/100
PM2.5 (fine particles):
Good
11.8/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Fair
22.9/100
O3 (ozone):
Fair
22.0/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Fair
34.7/100
PM2.5 (fine particles):
Good
16.6/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Fair
23.9/100
O3 (ozone):
Fair
34.7/100
SO2 (sulfur dioxide):
Good
9.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
16.2/100
Pollen forecast in Šiauliai
View pollen forecastFrequently Asked Questions
Is air quality bad in Šiauliai right now?
On 9 August 2026, overall air quality in Šiauliai is fair. AQI is the main air quality indicator at 22.9/100. Pollution peaks around 11:00 PM (NO2: 22.9/100).
Will air quality be worse tomorrow in Šiauliai?
On 10 August 2026, air quality conditions in Šiauliai will be similar to today, with AQI forecast at fair at 34.7/100. Pollution peaks around 5:00 PM (O3: 34.7/100).
When is air pollution at its worst in Šiauliai?
Šiauliai residents notice reduced air quality mainly when birch and linden pollen peaks, and during spells of vehicle traffic on the Via Baltica A1 motorway and surrounding manufacturing and agricultural operations; the rest of the calendar year typically brings clearer, more consistent conditions.
Are air quality levels in Šiauliai 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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