Worst air pollution Algeciras, today and tomorrow
Today (9 August): Air quality in Algeciras is fair. PM2.5, NO2, and PM1 are fair; AQI and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 2:00 AM (O3: 43.0/100).
Tomorrow (10 August 2026): Air quality in Algeciras is fair. AQI worsens to fair; NO2 decreases to good; O3 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 36.4/100). 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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Algeciras' air quality reflects the Strait of Gibraltar shipping lane generating significant vessel SO₂ and NOₓ from one of the world's most trafficked maritime corridors alongside the Cepsa refinery's industrial emissions. The Levante and Poniente winds create alternating ventilation patterns, while the strait's powerful winds generally provide effective natural dispersal.
Today - 9 August | Pollution peaks at 02:00
AQI:
Medium
43.0/100
PM2.5 (fine particles):
Fair
21.1/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Fair
21.1/100
O3 (ozone):
Medium
43.0/100
SO2 (sulfur dioxide):
Good
7.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Fair
20.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Fair
36.4/100
PM2.5 (fine particles):
Fair
21.5/100
PM10 (coarse particles):
Good
7.9/100
NO2 (nitrogen dioxide):
Good
15.5/100
O3 (ozone):
Fair
36.4/100
SO2 (sulfur dioxide):
Good
6.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
17.4/100
Pollen forecast in Algeciras
View pollen forecastFrequently Asked Questions
Is air quality bad in Algeciras right now?
On 9 August 2026, overall air quality in Algeciras is fair. PM2.5 is the main pollutant at 21.1/100. Pollution peaks around 2:00 AM (O3: 43.0/100).
Will air quality be worse tomorrow in Algeciras?
On 10 August 2026, air quality conditions in Algeciras will be similar to today, with AQI forecast at fair at 36.4/100. Pollution peaks around 5:00 PM (O3: 36.4/100).
When is air pollution at its worst in Algeciras?
How does air quality change throughout the year in Algeciras? The winter months typically bring the weakest air quality of the year, as calm anticyclonic conditions trap vehicle and heating pollution near the surface. Spring often marks a turning point, with increasing storminess and rainfall helping to clear accumulated exhaust and smoke from the air. Summer's intense heat and sunshine create ideal conditions for ozone formation, sometimes overshadowing the lower traffic volumes typical of the season. By late autumn, air quality is usually back to more moderate levels, though the first cold snaps can bring an early hint of winter's traffic and heating pollution. The south's long, hot summers and occasional calima dust events from across the Strait tend to intensify the usual seasonal swings.
Are air quality levels in Algeciras 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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