What is the air quality in Sydney today?

The current Air Quality Index (AQI) in Sydney is 18 (Good). PM2.5 concentration is 4.36 µg/m³.

What is the temperature in Sydney right now?

The current temperature in Sydney is 2.9°C (feels like -3.3°C). Humidity is 72.0% and wind speed is 38.5 km/h.

Is it safe to go outside in Sydney?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Sydney, Canada

Cloudy

2.9°C · 72.0% humidity

2.9°

Feels -3.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

43h · 2 stn

View full history →

Sydney's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

72.0%

Humidity

38.5 km/h

Wind WSW

1028.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.36 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Sydney?

Temperature & Precipitation

PM2.5 Trend

43h · 2 stations

PM2.54.36 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

4.36

Median

4.63

Average

4.1

Low

5.5

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.4

What is the 7-day forecast for Sydney?

10-20

13.6° 6.9°

3.75 mm

10-21

10.0° 2.9°

9.13 mm

10-22

12.6° 4.1°

0.31 mm

10-23

11.6° 5.6°

1.69 mm

10-24

10.9° 3.9°

10-25

18.4° 6.1°

0.19 mm

10-26

11.4° 6.1°

20.31 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Sydney?

Sydney - Prince St, Nova Scotia

0.6 km PM2.5: 4.1 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 4.3 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 2.6 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 3.4 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 5.5 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 4.6 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 4.3 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 5.5 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 2.6 µg/m³

Sydney, Nova Scotia, Canada

1.1 km PM2.5: 7.4 µg/m³

What cities are near Sydney?

20 Glace Bay 14 New Glasgow 17 Charlottetown 15 Cole Harbour 18 Woodlawn 16 Dartmouth 16 Lower Sackville 15 Downtown Halifax 15 Halifax 15 Halifax South End

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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 2026-10-20T22:41 UTC.