St Marys Sydney North-west

Monitoring Station · St Clair, Australia
103
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
75 9pm
75
75
50 12am
50
50
37 3am
37
37
37 6am
37
37
37 9am
37
—
— 12pm
—
—
— 3pm
—
—
— 6pm
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Air Quality Trend (24h)

Nearby Monitoring Stations

30
St Marys Sydney North-west
0.0 km
51
St Marys Sydney North-west
0.0 km
123
St Marys Sydney North-west
0.0 km
23
Sydney Penrith
9.6 km
37
Sydney Penrith
9.6 km
11
Sydney Penrith
9.6 km
19
Sydney Penrith
9.6 km
17
Sydney Penrith
9.6 km

Nearby Cities

45 St Clair 46 Mount Druitt 42 Glenmore Park 49 Cranebrook 47 Quakers Hill 59 Blacktown 58 Seven Hills 62 Glenwood 59 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T00:28 UTC.