Guelph, Ontario, Canada

Monitoring Station · Guelph, Canada
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
237 7am
237
80
237 10am
237
225
225 1pm
225
205
198 4pm
198
198
205 7pm
205
205
— 10pm
—
—
— 1am
—
—
— 4am
—
—
Station readings
80
21
CAMS model adj +171
66
66
66
66
66
54
54
54
34
27
27
27
34
34
34

Air Quality Trend (24h)

PM2.55.0 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

25
Guelph, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
25
Guelph, Ontario, Canada
0.0 km PM2.5: 6.0 µg/m³
32
Guelph, Ontario, Canada
0.0 km PM2.5: 7.7 µg/m³
30
Guelph, Ontario, Canada
0.0 km PM2.5: 7.2 µg/m³
50
Kitchener, Ontario, Canada
22.7 km PM2.5: 12.0 µg/m³
46
Kitchener, Ontario, Canada
22.7 km PM2.5: 11.0 µg/m³
42
Kitchener, Ontario, Canada
22.7 km PM2.5: 10.1 µg/m³
50
Kitchener, Ontario, Canada
22.7 km PM2.5: 12.0 µg/m³

Nearby Cities

35 Guelph 41 Hespeler 40 Fiddlesticks 35 Fergus 45 Vanier 43 Cambridge 45 Waterloo 43 Christopher-Champlain 45 Kitchener

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-18T10:59 UTC.