Worst air pollution Squamish, today and tomorrow
Today (9 August): Air quality in Squamish is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 39.0/100).
Tomorrow (10 August 2026): Air quality in Squamish is fair. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 23.3/100). Airmine updates local air quality forecasts four times daily.
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Squamish's air quality benefits from Howe Sound's fjord winds, though the historic Woodfibre pulp-mill site and Sea to Sky Highway traffic have historically contributed local emissions.
Today - 9 August | Pollution peaks at 07:00
AQI:
Fair
39.0/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
39.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
9.0/100
PM1 (ultrafine particles):
Good
6.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 09:00
AQI:
Fair
23.3/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
4.7/100
Pollen forecast in Squamish
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Frequently Asked Questions
Is air quality bad in Squamish right now?
On 9 August 2026, overall air quality in Squamish is fair. AQI is the main air quality indicator at 39.0/100. Pollution peaks around 7:00 AM (O3: 39.0/100).
Will air quality be worse tomorrow in Squamish?
On 10 August 2026, air quality conditions in Squamish will be similar to today, with AQI forecast at fair at 23.3/100. Pollution peaks around 9:00 AM (O3: 23.3/100).
When is air pollution at its worst in Squamish?
Squamish's air quality varies through the year, influenced by its position between the ocean fjord of Howe Sound and the Coast Mountains. Persistent winter rain generally keeps pollution levels low, while dry summer stretches can bring some haze from traffic and, in smoky years, wildfires burning inland. Frequent Pacific storms during the cooler months usually clear the air completely within a day.
Are air quality levels in Squamish 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: 9 August 2026 at 20:27 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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