Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
39 11pm
37
37
37 2am
37
37
37 5am
37
37
37 8am
37
37
37 11am
37
37
— 2pm
—
—
— 5pm
—
—
— 8pm
—
—

Air Quality Trend (24h)

View city history →

Nearby Monitoring Stations

37
Sarnia, Ontario, Canada
0.0 km
37
Sarnia, Ontario, Canada
0.0 km
37
Sarnia, Ontario, Canada
0.0 km
35
Sarnia, Ontario, Canada
0.0 km
34
Port Huron, Michigan, USA
5.3 km
34
Port Huron, Michigan, USA
5.3 km

Nearby Cities

30 Sarnia 30 Port Huron 24 Mount Clemens 30 Clinton Township 15 Shelby 27 Strathroy 25 Chatham 29 Saint Clair Shores 30 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-12T02:41 UTC.