Worst air pollution La Serena, today and tomorrow
Today (16 July): Air quality in La Serena is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 13.3/100).
Tomorrow (17 July 2026): Air quality in La Serena is good. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 13.2/100). 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
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La Serena's air quality benefits from its exceptional Pacific Ocean and Coquimbo Bay coastal position in the Chilean Norte Chico, with consistent Pacific Humboldt Current maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the astronomy observatory tourism — La Serena having among the world's best astronomical skies — fishing, and services corridor contribute modest local sources, while the outstanding Pacific coastal exposure generally maintains La Serena among Chile's more reliably clean coastal cities throughout most of the year.
Today - 16 July | Pollution peaks at 08:00
AQI:
Good
13.3/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
13.3/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Good
13.2/100
PM2.5 (fine particles):
Good
11.6/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
13.2/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.1/100
Frequently Asked Questions
Is air quality bad in La Serena right now?
On 16 July 2026, overall air quality in La Serena is good. AQI is the main air quality indicator at 13.3/100. Pollution peaks around 8:00 AM (O3: 13.3/100).
Will air quality be worse tomorrow in La Serena?
On 17 July 2026, air quality conditions in La Serena will be similar to today, with AQI forecast at good at 13.2/100. Pollution peaks around 9:00 AM (O3: 13.2/100).
When is air pollution at its worst in La Serena?
The biggest local contributors to pollution in La Serena are vehicle traffic, shipbuilding and port operations, along with seasonal tourism traffic, particularly once maritime winds die down. Sea breezes typically keep conditions in check, except during still weather. This coastal advantage is less pronounced during still, high-pressure weather.
Are air quality levels in La Serena 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.
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