Highest air pollution Alcobaça, today and tomorrow
Today (29 June): Air quality in Alcobaça is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 41.2/100).
Tomorrow (30 June 2026): Air quality in Alcobaça is medium. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 52.2/100). 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
Alcobaça's air quality benefits from the Atlantic coastal proximity in the Alcobaça municipality of west-central Portugal, with consistent Atlantic westerlies providing reliable maritime ventilation across the famous monastery city. Vehicle traffic on the A8 motorway and surrounding wine, fruit, and agricultural operations contribute the primary local sources, while the Atlantic coastal proximity and the surrounding Torres Vedras-Alcobaça hills generally maintain moderate to good conditions throughout most of the year.
Today - 29 June | Pollution peaks at 15:00
AQI:
Medium
41.2/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Good
16.1/100
O3 (ozone):
Medium
41.2/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
7.8/100
Levels show the poorest local air quality during the day
Tomorrow - 30 June | Pollution peaks at 14:00
AQI:
Medium
52.2/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Good
11.8/100
O3 (ozone):
Medium
52.2/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
9.9/100
Pollen forecast in Alcobaça
View pollen forecastFrequently Asked Questions
Is air quality bad in Alcobaça right now?
On 29 June 2026, overall air quality in Alcobaça is medium. AQI is the main air quality indicator at 41.2/100. Pollution peaks around 3:00 PM (O3: 41.2/100).
Will air quality be worse tomorrow in Alcobaça?
On 30 June 2026, air quality conditions in Alcobaça will be similar to today, with AQI forecast at medium at 52.2/100. Pollution peaks around 2:00 PM (O3: 52.2/100).
Are air quality levels in Alcobaça 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: 29 June 2026 at 18:39 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team