Worst air pollution Cartagena, today and tomorrow
Today (16 July): Air quality in Cartagena is fair. PM2.5 is fair; AQI and O3 are medium; PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 41.0/100).
Tomorrow (17 July 2026): Air quality in Cartagena is fair. AQI worsens to fair; PM2.5 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (O3: 38.3/100). 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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Cartagena's air quality in Spain benefits from its Mediterranean coastal position, with consistent Levante sea breezes from the Mar Menor and the open Mediterranean providing maritime ventilation along the Murcian coast. The primary local concerns are industrial emissions from the Repsol refinery, fertiliser plants, and zinc smelter in the Cartagena industrial corridor — one of Spain's most significant industrial emission zones — alongside vehicle traffic on the AP-7, while the coastal position aids dispersal on most wind days.
Today - 16 July | Pollution peaks at 19:00
AQI:
Medium
41.0/100
PM2.5 (fine particles):
Fair
21.2/100
PM10 (coarse particles):
Good
10.4/100
NO2 (nitrogen dioxide):
Good
16.9/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
14.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Fair
38.3/100
PM2.5 (fine particles):
Good
19.5/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Good
14.9/100
O3 (ozone):
Fair
38.3/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
11.7/100
Pollen forecast in Cartagena
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Cartagena
Frequently Asked Questions
Is air quality bad in Cartagena right now?
On 16 July 2026, overall air quality in Cartagena is fair. PM2.5 is the main pollutant at 21.2/100. Pollution peaks around 7:00 PM (O3: 41.0/100).
Will air quality be worse tomorrow in Cartagena?
On 17 July 2026, air quality conditions in Cartagena will be similar to today, with AQI forecast at fair at 38.3/100. Pollution peaks around 8:00 PM (O3: 38.3/100).
When is air pollution at its worst in Cartagena?
How does air quality change throughout the year in Cartagena? 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 usually brings an improvement as more frequent rain and stronger winds help clear the air and wash out pollutants that built up over winter. Hot, dry summer conditions favour ozone formation, so afternoon readings can rise even when traffic and heating pollution are otherwise low. Autumn usually sees a steady return to cleaner conditions as the ozone-favouring heat of summer fades and rainfall picks up. The Mediterranean coast's sea breezes generally help disperse pollution, though summer tourism traffic and occasional Saharan dust can still push levels up.
Are air quality levels in Cartagena 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?
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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