Worst air pollution Valdivia, today and tomorrow
Today (13 August): Air quality in Valdivia is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 17.7/100).
Tomorrow (14 August 2026): Air quality in Valdivia is fair. AQI worsens to fair; PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (PM2.5: 22.5/100). 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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Valdivia's air quality reflects the Chilean Los Ríos Region Calle-Calle River valley position at 6 metres adjacent to the Pacific coast, with vehicle traffic on surrounding roads and the timber, seafood, and university corridor contributing local sources. Consistent Pacific westerlies provide maritime ventilation, while the extraordinary residential wood-burning character during the wet cold Chilean winter generates significant PM2.5 under temperature inversions and Valdivia generally maintains moderate to elevated Chilean southern rain forest city readings during the heating season.
Today - 13 August | Pollution peaks at 08:00
AQI:
Good
17.7/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
17.7/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.2/100
PM1 (ultrafine particles):
Good
2.5/100
Levels show the poorest local air quality during the day
Tomorrow - 14 August | Pollution peaks at 23:00
AQI:
Fair
22.5/100
PM2.5 (fine particles):
Fair
22.5/100
PM10 (coarse particles):
Good
10.5/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.2/100
PM1 (ultrafine particles):
Good
2.6/100
Frequently Asked Questions
Is air quality bad in Valdivia right now?
On 13 August 2026, overall air quality in Valdivia is good. AQI is the main air quality indicator at 17.7/100. Pollution peaks around 8:00 AM (O3: 17.7/100).
Will air quality be worse tomorrow in Valdivia?
On 14 August 2026, air quality conditions in Valdivia will be worse than today, with AQI forecast at fair at 22.5/100. Pollution peaks around 11:00 PM (PM2.5: 22.5/100).
When is air pollution at its worst in Valdivia?
The biggest local contributors to pollution in Valdivia are road traffic and small-scale charcoal production, particularly once calm, stagnant conditions settle in the surrounding valley. The surrounding valley terrain holds pollutants near the surface rather than letting them disperse. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Valdivia 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: 13 August 2026 at 08:46 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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