Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
49 9pm
25
37
37 12am
37
37
37 3am
37
37
37 6am
37
37
37 9am
37
37
— 12pm
—
—
— 3pm
—
—
— 6pm
—
—

Air Quality Trend (24h)

View city history →

Nearby Monitoring Stations

39
Sarnia, Ontario, Canada
0.0 km
37
Sarnia, Ontario, Canada
0.0 km
38
Sarnia, Ontario, Canada
0.0 km
38
Sarnia, Ontario, Canada
0.0 km
39
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 31 Clinton Township 15 Shelby 14 Strathroy 25 Chatham 30 Saint Clair Shores 31 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-12T00:48 UTC.