Sarnia, Ontario, Canada

Monitoring Station · Sarnia, Canada
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
37 5pm
37
55
37 8pm
37
37
37 11pm
37
37
37 2am
50
50
50 5am
50
50
— 8am
—
—
— 11am
—
—
— 2pm
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Air Quality Trend (24h)

Nearby Monitoring Stations

36
Sarnia, Ontario, Canada
0.0 km
50
Sarnia, Ontario, Canada
0.0 km
48
Port Huron, Michigan, USA
5.3 km
40
Port Huron, Michigan, USA
5.3 km

Nearby Cities

48 Sarnia 48 Port Huron 52 Mount Clemens 50 Clinton Township 48 Shelby 41 Strathroy 48 Chatham 48 Saint Clair Shores 50 Sterling Heights

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T20:30 UTC.