Worst air pollution Valparaíso, today and tomorrow
Today (16 July): Air quality in Valparaíso is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (O3: 12.2/100).
Tomorrow (17 July 2026): Air quality in Valparaíso is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 16.7/100). 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.
Valparaíso's air quality reflects the Chilean Pacific coastal position on the Valparaíso Bay, with consistent Pacific Humboldt Current maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the major port — Chile's main container port — and residential corridor contribute local sources, while the outstanding Pacific coastal exposure generally maintains Valparaíso at moderate to good conditions for a major Latin American Pacific port city and the hillside topography creates distinctive local wind channelling throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Good
12.2/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
12.2/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
7.1/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.3/100
Frequently Asked Questions
Is air quality bad in Valparaíso right now?
On 16 July 2026, overall air quality in Valparaíso is good. AQI is the main air quality indicator at 12.2/100. Pollution peaks around 9:00 PM (O3: 12.2/100).
Will air quality be worse tomorrow in Valparaíso?
On 17 July 2026, air quality conditions in Valparaíso will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 11:00 PM (O3: 16.7/100).
When is air pollution at its worst in Valparaíso?
The biggest local contributors to pollution in Valparaíso are road traffic and shipbuilding and port operations, particularly once onshore breezes fall calm. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Valparaíso 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