Worst air pollution Aranjuez, today and tomorrow
Today (20 September): Air quality in Aranjuez is moderate. AQI and PM2.5 are moderate; NO2 and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (PM2.5: 44.6/100).
Tomorrow (21 September 2026): Air quality in Aranjuez is moderate. PM2.5 decreases to fair; O3 increases to moderate; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 45.6/100). 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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Aranjuez's air quality reflects the Tagus river valley south of Madrid in the Casa Real gardens city, with vehicle traffic on the A-4 national road and the surrounding agricultural and tourism operations contributing local sources. The Tagus valley provides ventilation on Atlantic westerly winds, while the Madrid metropolitan basin's temperature inversion problem can periodically extend southward to affect the Tagus corridor under prolonged winter anticyclonic conditions throughout the year.
Today - 20 September | Pollution peaks at 13:00
AQI:
Moderate
44.6/100
PM2.5 (fine particles):
Moderate
44.6/100
PM10 (coarse particles):
Good
15.7/100
NO2 (nitrogen dioxide):
Fair
37.3/100
O3 (ozone):
Fair
34.5/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
2.6/100
PM1 (ultrafine particles):
Good
12.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 18:00
AQI:
Moderate
45.6/100
PM2.5 (fine particles):
Fair
37.7/100
PM10 (coarse particles):
Good
11.8/100
NO2 (nitrogen dioxide):
Fair
39.7/100
O3 (ozone):
Moderate
45.6/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
7.8/100
Pollen forecast in Aranjuez
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Aranjuez
Frequently Asked Questions
Is air quality bad in Aranjuez right now?
On 20 September 2026, overall air quality in Aranjuez is moderate. AQI is the main air quality indicator at 44.6/100. Pollution peaks around 1:00 PM (PM2.5: 44.6/100).
Will air quality be worse tomorrow in Aranjuez?
On 21 September 2026, air quality conditions in Aranjuez will be similar to today, with AQI forecast at moderate at 45.6/100. Pollution peaks around 6:00 PM (O3: 45.6/100).
When is air pollution at its worst in Aranjuez?
How does air quality change throughout the year in Aranjuez? Winter tends to bring the year's weakest readings, as stagnant, cold air lets heating smoke and vehicle emissions build up rather than clear away. Air quality usually improves through spring, helped by more frequent frontal systems that bring rain and stronger winds to disperse local emissions. During summer, strong sunlight and high temperatures accelerate ozone formation, occasionally offsetting the drop in traffic and heating-related emissions. As autumn progresses, cooler temperatures and more frequent rain tend to bring air quality back toward its yearly average. Being inland, this area sees more extreme summer heat and winter cold, which sharpens the seasonal contrast in air quality.
Are air quality levels in Aranjuez 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: 20 September 2026 at 14:33 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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