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 7pm
75
75
75 10pm
75
50
50 1am
50
37
37 4am
37
37
37 7am
37
37
— 10am
—
—
— 1pm
—
—
— 4pm
—
—

Air Quality Trend (24h)

Nearby Monitoring Stations

89
St Marys Sydney North-west
0.0 km
30
St Marys Sydney North-west
0.0 km
114
St Marys Sydney North-west
0.0 km
119
St Marys Sydney North-west
0.0 km
51
St Marys Sydney North-west
0.0 km
37
Sydney Penrith
9.6 km
11
Sydney Penrith
9.6 km
23
Sydney Penrith
9.6 km

Nearby Cities

52 St Clair 52 Mount Druitt 48 Glenmore Park 54 Cranebrook 52 Quakers Hill 63 Blacktown 61 Seven Hills 64 Glenwood 62 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T22:48 UTC.