Air Quality in St Clair, Australia

Windy
16.4°C · 41.8% humidity
16.4°
Feels 16.4°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
24 4am
24
24
24 7am
24
24
24 10am
24
24
24 1pm
24
24
25 4pm
25
25
25 7pm
25
24
24 10pm
25
25
25 1am
25
24
AD 728×90

Air Quality Index Trend

47h · 1 stn

St Clair's air quality is generally good but can be impacted by bushfire smoke, dust storms, and vehicle emissions. Seasonal fire events can cause significant temporary air quality deterioration. Current PM2.5 concentration in St Clair is 1.2× the WHO annual guideline of 5 µg/m³.

41.8%
Humidity
68.3 km/h
Wind W
1029.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
24
5.8 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for St Clair?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.55.8 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250

What is the 7-day forecast for St Clair?

05-28
16.0° 10.8°
05-29
16.4° 9.6°
05-30
16.9° 11.8°
0.13 mm
05-31
16.6° 8.4°
06-01
19.5° 9.7°
06-02
16.2° 8.8°
06-03
14.4° 7.2°
Both models agree Avg diff: 2.6°C

Where are air quality stations near St Clair?

34
St Marys Sydney North-west
1.7 km PM2.5: 8.2 µg/m³
42
St Marys Sydney North-west
1.7 km PM2.5: 10.1 µg/m³
21
St Marys Sydney North-west
1.7 km PM2.5: 5.0 µg/m³
55
St Marys Sydney North-west
1.7 km PM2.5: 14.0 µg/m³
46
St Marys Sydney North-west
1.7 km PM2.5: 11.0 µg/m³
28
St Marys Sydney North-west
1.7 km PM2.5: 6.7 µg/m³
57
St Marys Sydney North-west
1.7 km PM2.5: 15.0 µg/m³
2
St Marys Sydney North-west
1.7 km PM2.5: 0.5 µg/m³
46
St Marys Sydney North-west
1.7 km PM2.5: 11.0 µg/m³
13
St Marys Sydney North-west
1.7 km PM2.5: 3.1 µg/m³

What cities are near St Clair?

24 Mount Druitt 24 Glenmore Park 24 Quakers Hill 24 Cranebrook 24 Blacktown 24 Seven Hills 14 Greystanes 24 Glenwood 15 Fairfield 16 Cabramatta
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:46 UTC.