Worst air pollution Curicó, today and tomorrow
Today (16 July): Air quality in Curicó is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 12.9/100).
Tomorrow (17 July 2026): Air quality in Curicó is good. All pollutants stay as today. Pollution peaks around 8:00 PM (O3: 17.0/100). 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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Curicó's air quality reflects the Chilean Maule Region Teno River valley's partial topographic enclosure at 228 metres in the Central Valley, with vehicle traffic on surrounding roads and the wine, fruit processing, and services corridor contributing local sources. The Central Valley's winter inversions compound vehicle and wood-burning residential heating emissions, while the Pacific westerlies provide seasonal relief and Curicó generally maintains moderate to elevated Chilean central valley wine corridor readings during the winter months.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
12.9/100
PM2.5 (fine particles):
Good
10.1/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
12.9/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.3/100
PM1 (ultrafine particles):
Good
1.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Good
17.0/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
17.0/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.3/100
PM1 (ultrafine particles):
Good
1.7/100
Frequently Asked Questions
Is air quality bad in Curicó right now?
On 16 July 2026, overall air quality in Curicó is good. AQI is the main air quality indicator at 12.9/100. Pollution peaks around 11:00 PM (O3: 12.9/100).
Will air quality be worse tomorrow in Curicó?
On 17 July 2026, air quality conditions in Curicó will be similar to today, with AQI forecast at good at 17.0/100. Pollution peaks around 8:00 PM (O3: 17.0/100).
When is air pollution at its worst in Curicó?
In Curicó, traffic emissions along with charcoal and wood-burning are the main local sources, with conditions worsening when temperature inversions set in over the valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Residential heating through the colder months is a major seasonal source of particulates.
Are air quality levels in Curicó 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.
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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