Air Quality in Dee Why, Australia

Windy
16.6°C · 78.1% humidity
16.6°
Feels 16.6°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
21 4pm
21
21
42 7pm
30
22
16 10pm
12
9
6 1am
4
3
2 4am
1
1
1 7am
2
1
21 10am
21
21
21 1pm
21
21
Station readings
23
21
26
CAMS model adj -33
54
54
54
34
34
34
34
34
34
27
27
27
27
27
27
27
34
34
54
54
54
54
54
54

Air Quality Index Trend

35h · 1 stn

Dee Why'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.

78.1%
Humidity
99.5 km/h
Wind S
1021.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.2 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Dee Why?

Temperature & Precipitation

PM2.5 Trend

35h · 1 station
PM2.510.2 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
10.2
Median
9.71
Average
6.12
Low
15.27
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -3.1

What is the 7-day forecast for Dee Why?

09-23
23.0° 16.5°
09-24
24.1° 11.8°
0.19 mm
09-25
30.3° 13.1°
09-26
18.1° 12.1°
0.69 mm
09-27
21.6° 13.5°
0.13 mm
09-28
22.5° 13.9°
5.25 mm
09-29
20.0° 12.2°
0.44 mm
Both models agree Avg diff: 4.3°C

Where are air quality stations near Dee Why?

32
East Sydney Cammeray
10.8 km PM2.5: 7.7 µg/m³ PM10: 14.1 µg/m³
58
East Sydney Bradfield Highway
12.5 km PM2.5: 15.3 µg/m³ PM10: 27.6 µg/m³
55
Macquarie Park Sydney East
14.2 km PM2.5: 14.0 µg/m³
56
Macquarie Park Sydney East
14.2 km PM2.5: 14.5 µg/m³
51
Macquarie Park Sydney East
14.2 km PM2.5: 12.1 µg/m³
28
Macquarie Park Sydney East
14.2 km PM2.5: 6.7 µg/m³
28
Macquarie Park Sydney East
14.2 km PM2.5: 6.7 µg/m³
30
Macquarie Park Sydney East
14.2 km PM2.5: 7.2 µg/m³
53
Macquarie Park Sydney East
14.2 km PM2.5: 13.1 µg/m³
24
Cook And Phillip Sydney East
15.2 km PM2.5: 5.8 µg/m³

What cities are near Dee Why?

43 Manly 45 Mosman 42 Chatswood 42 Saint Ives 51 Sydney Central Business District 48 Sydney 35 Surry Hills 42 Wahroonga 42 Hornsby 40 Ryde
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-23T09:27 UTC.