Worst air pollution El Puerto de Santa María, today and tomorrow
Today (9 August): Air quality in El Puerto de Santa María is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 35.3/100).
Tomorrow (10 August 2026): Air quality in El Puerto de Santa María is fair. AQI improves to medium; PM2.5 increases to fair; NO2 increases to fair; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 40.3/100). Airmine updates local air quality forecasts four times daily.
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El Puerto de Santa María's air quality benefits from its exceptional Bay of Cádiz and Atlantic coastal position, with the Poniente and Levante winds providing powerful and consistent natural ventilation around the lower Guadalquivir estuary. Vehicle traffic on the A-4 and the surrounding sherry wine production and tourism operations are the primary local sources, while the outstanding Atlantic and strait exposure generally maintains excellent to good air quality conditions throughout most of the year.
Today - 9 August | Pollution peaks at 16:00
AQI:
Fair
35.3/100
PM2.5 (fine particles):
Good
19.8/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Good
14.5/100
O3 (ozone):
Fair
35.3/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
13.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Fair
23.3/100
PM10 (coarse particles):
Good
9.4/100
NO2 (nitrogen dioxide):
Fair
21.0/100
O3 (ozone):
Medium
40.3/100
SO2 (sulfur dioxide):
Good
6.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
15.6/100
Pollen forecast in El Puerto de Santa María
View pollen forecastFrequently Asked Questions
Is air quality bad in El Puerto de Santa María right now?
On 9 August 2026, overall air quality in El Puerto de Santa María is fair. AQI is the main air quality indicator at 35.3/100. Pollution peaks around 4:00 PM (O3: 35.3/100).
Will air quality be worse tomorrow in El Puerto de Santa María?
On 10 August 2026, air quality conditions in El Puerto de Santa María will be similar to today, with PM2.5 forecast at fair at 23.3/100. Pollution peaks around 5:00 PM (O3: 40.3/100).
When is air pollution at its worst in El Puerto de Santa María?
Does air quality in El Puerto de Santa María vary by season? Winter mornings are frequently the year's most polluted, as fog and calm conditions trap traffic fumes and smoke from wood stoves close to the ground. Spring is typically when conditions begin improving, as increasing wind speeds help disperse traffic emissions before they can accumulate. The long, hot days of summer favour ozone build-up, which can spike on the stillest, sunniest afternoons. Conditions tend to stabilise in autumn, as cooling weather and increasing rain reduce the ozone spikes typical of summer. Southern Spain's high summer temperatures, combined with periodic dust blown in from North Africa, tend to sharpen the seasonal contrasts here.
Are air quality levels in El Puerto de Santa María 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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