Worst air pollution San Fernando de Henares, today and tomorrow
Today (16 July): Air quality in San Fernando de Henares is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 36.2/100).
Tomorrow (17 July 2026): Air quality in San Fernando de Henares is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 38.9/100). 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
Use our Strava plugin to check your own exposure.
In San Fernando de Henares, harvest dust and local traffic have the largest effect on air quality. Levels are generally low but can spike sharply in August and September. Strong summer wind usually keeps the air moving despite the dust from farmland.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
9.6/100
PM10 (coarse particles):
Good
7.8/100
NO2 (nitrogen dioxide):
Good
3.7/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
6.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
3.7/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
4.9/100
Pollen forecast in San Fernando de Henares
View pollen forecastFrequently Asked Questions
Is air quality bad in San Fernando de Henares right now?
On 16 July 2026, overall air quality in San Fernando de Henares is fair. AQI is the main air quality indicator at 36.2/100. Pollution peaks around 3:00 PM (O3: 36.2/100).
Will air quality be worse tomorrow in San Fernando de Henares?
On 17 July 2026, air quality conditions in San Fernando de Henares will be similar to today, with AQI forecast at fair at 38.9/100. Pollution peaks around 3:00 PM (O3: 38.9/100).
When is air pollution at its worst in San Fernando de Henares?
When is air quality typically worst in San Fernando de Henares? Winter is generally the most challenging season, since low wind speeds and temperature inversions prevent traffic and wood-smoke pollution from dispersing. By spring, air quality usually starts trending upward as the calm winter inversions give way to more unsettled, breezier weather. Summer readings are shaped mainly by ozone, which builds under strong sun and heat, sometimes worsened by drifting wildfire smoke. The first rains of autumn typically help clear out any lingering summer dust or ozone, setting up milder conditions ahead of winter. Away from the moderating effect of the sea, this area experiences starker seasonal air quality swings than coastal Spain.
Are air quality levels in San Fernando de Henares 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.
Want to see air quality forecasts for other cities in Spain?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app