Worst air pollution Algeciras, today and tomorrow

Today (16 July): 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 3:00 PM (O3: 54.3/100).
Tomorrow (17 July 2026): Air quality in Algeciras is fair. NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 59.2/100). 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.

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 - 16 July | Pollution peaks at 15:00

AQI:

Medium

54.3/100

PM2.5 (fine particles):

Fair

24.4/100

PM10 (coarse particles):

Good

12.1/100

NO2 (nitrogen dioxide):

Fair

32.1/100

O3 (ozone):

Medium

54.3/100

SO2 (sulfur dioxide):

Good

8.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.8/100

PM1 (ultrafine particles):

Fair

23.2/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 16:00

AQI:

Medium

59.2/100

PM2.5 (fine particles):

Fair

22.6/100

PM10 (coarse particles):

Good

8.6/100

NO2 (nitrogen dioxide):

Medium

41.8/100

O3 (ozone):

Medium

59.2/100

SO2 (sulfur dioxide):

Good

9.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

5.7/100

PM1 (ultrafine particles):

Fair

22.3/100

Pollen forecast in Algeciras

View pollen forecast

Frequently Asked Questions

Is air quality bad in Algeciras right now?

On 16 July 2026, overall air quality in Algeciras is fair. NO2 is the main pollutant at 32.1/100. Pollution peaks around 3:00 PM (O3: 54.3/100).

Will air quality be worse tomorrow in Algeciras?

On 17 July 2026, air quality conditions in Algeciras will be similar to today, with PM2.5 forecast at fair at 22.6/100. Pollution peaks around 4:00 PM (O3: 59.2/100).

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.

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