Worst air pollution Oitavos Dunes – Oitavos Course - Lisbon, today and tomorrow
Today (21 July): Air quality in Oitavos Dunes – Oitavos Course 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: 42.7/100).
Tomorrow (22 July 2026): Air quality in Oitavos Dunes – Oitavos Course is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 33.7/100). 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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Oitavos Dunes air quality benefits from its exceptional Cascais Sintra-Cascais Natural Park Atlantic Ocean coastal dune position, with consistent Atlantic westerlies providing outstanding maritime ventilation. Vehicle traffic contributes very modest local sources, while the extraordinary Atlantic coastal dune exposure and the surrounding Sintra-Cascais Natural Park provide exceptional natural filtration and generally maintain among Portugal's most naturally ventilated championship golf environments throughout most of the year.
Today - 21 July | Pollution peaks at 15:00
AQI:
Medium
42.7/100
PM2.5 (fine particles):
Good
12.5/100
PM10 (coarse particles):
Good
9.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
42.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
9.3/100
PM1 (ultrafine particles):
Good
8.4/100
Levels show the poorest local air quality during the day
Tomorrow - 22 July | Pollution peaks at 12:00
AQI:
Fair
33.7/100
PM2.5 (fine particles):
Good
12.9/100
PM10 (coarse particles):
Good
10.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
33.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
8.4/100
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Frequently Asked Questions
Is air quality bad in Oitavos Dunes – Oitavos Course right now?
On 21 July 2026, overall air quality in Oitavos Dunes – Oitavos Course is medium. AQI is the main air quality indicator at 42.7/100. Pollution peaks around 3:00 PM (O3: 42.7/100).
Will air quality be worse tomorrow in Oitavos Dunes – Oitavos Course?
On 22 July 2026, air quality conditions in Oitavos Dunes – Oitavos Course will be worse than today, with AQI forecast at fair at 33.7/100. Pollution peaks around 12:00 PM (O3: 33.7/100).
When is air pollution at its worst in Oitavos Dunes – Oitavos Course?
Within the Sintra-Cascais Natural Park, Oitavos Dunes benefits from protected parkland surroundings and steady Atlantic breezes, with only a brief late-winter pine bloom as the main seasonal factor. Vehicle traffic on the nearby coastal road is modest even in peak season.
Are air quality levels in Oitavos Dunes – Oitavos Course 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: 21 July 2026 at 10:44 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