What is the air quality in Ajax today?

The current Air Quality Index (AQI) in Ajax is 36 (Good). PM2.5 concentration is 8.69 µg/m³.

What is the temperature in Ajax right now?

The current temperature in Ajax is 12.6°C (feels like 12.6°C). Humidity is 69.2% and wind speed is 85.1 km/h.

Is it safe to go outside in Ajax?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 1.4 (Low).

Air Quality in Ajax, Canada

Windy

12.6°C · 69.2% humidity

12.6°

Feels 12.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

5 stations

Nearby Monitoring Stations

AQI Forecast

27 5pm

36 8pm

30 11pm

26 2am

24 5am

24 8am

24 11am

24 2pm

Air Quality Index Trend

48h · 6 stn

View full history →

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

69.2%

Humidity

85.1 km/h

Wind NW

1016.9 hPa

Pressure

1.4

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.69 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Ajax?

Temperature & Precipitation

PM2.5 Trend

48h · 6 stations

PM2.58.69 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX1.4

Low

Station readings (5 stations within 25 km)

8.69

Median

8.44

Average

7.2

Low

10.1

High

PM2.5 µg/m³ · Model: 9.75 · Bias: +1.1

What is the 7-day forecast for Ajax?

05-30

17.6° 7.0°

0.06 mm

05-31

25.3° 6.7°

06-01

26.9° 14.5°

06-02

20.1° 8.5°

0.13 mm

06-03

23.3° 17.2°

06-04

21.8° 10.9°

06-05

21.3° 8.8°

0.38 mm

Both models agree Avg diff: 5.3°C

Where are air quality stations near Ajax?

Oshawa, Ontario, Canada

15.4 km PM2.5: 3.8 µg/m³

Oshawa, Ontario, Canada

15.4 km PM2.5: 3.1 µg/m³

Oshawa, Ontario, Canada

15.4 km PM2.5: 5.5 µg/m³

Toronto East, Ontario, Canada

22.4 km PM2.5: 4.8 µg/m³

Toronto East, Ontario, Canada

22.4 km PM2.5: 6.2 µg/m³

Toronto East, Ontario, Canada

22.4 km PM2.5: 3.8 µg/m³

What cities are near Ajax?

38 Whitby 35 Pickering 35 Rouge 38 Brooklin 35 West Hill 35 Morningside 38 Oshawa 35 Malvern 34 Woburn 35 Markham

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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 2026-05-30T00:07 UTC.