St Marys Sydney North-west

Monitoring Station · St Clair, Australia
115
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
50 2am
37
37
37 5am
37
37
37 8am
37
37
37 11am
37
25
25 2pm
25
25
— 5pm
—
—
— 8pm
—
—
— 11pm
—
—

Air Quality Trend (24h)

Nearby Monitoring Stations

30
St Marys Sydney North-west
0.0 km
103
St Marys Sydney North-west
0.0 km
36
St Marys Sydney North-west
0.0 km
52
St Marys Sydney North-west
0.0 km
51
St Marys Sydney North-west
0.0 km
25
St Marys Sydney North-west
0.0 km
11
Sydney Penrith
9.6 km
135
Sydney Penrith
9.6 km

Nearby Cities

11 St Clair 11 Mount Druitt 8 Glenmore Park 15 Cranebrook 12 Quakers Hill 32 Blacktown 29 Seven Hills 36 Glenwood 30 Greystanes

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T05:41 UTC.