Air Quality in Ottawa, Canada

Windy
20.9°C · 45.3% humidity
20.9°
Feels 20.9°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
42 12am
42
44
46 3am
44
44
44 6am
44
44
14 9am
14
14
14 12pm
14
15
15 3pm
15
15
15 6pm
15
15
15 9pm
15
15
Station readings
42
42
25
CAMS model adj -10
54
54
54
54
54
54
54
54
54
24
24
24
24
24
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

29h · 1 stn

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

45.3%
Humidity
66.8 km/h
Wind W
1011.2 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
11.11 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ottawa?

Temperature & Precipitation

PM2.5 Trend

29h · 1 station
PM2.511.11 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (3 stations within 25 km)
11.11
Median
11.33
Average
11.0
Low
12.0
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -3.8

What is the 7-day forecast for Ottawa?

08-03
24.2° 15.5°
0.06 mm
08-04
26.4° 13.0°
3.88 mm
08-05
23.8° 13.8°
1.06 mm
08-06
27.3° 16.3°
3.5 mm
08-07
21.0° 13.0°
1.06 mm
08-08
22.6° 14.1°
0.5 mm
08-09
32.3° 19.8°
2.06 mm
Both models agree Avg diff: 4.6°C

Where are air quality stations near Ottawa?

34
Ottawa
1.2 km PM2.5: 8.2 µg/m³
34
Ottawa
1.2 km PM2.5: 8.2 µg/m³
42
Ottawa
1.2 km PM2.5: 10.1 µg/m³
42
Ottawa
1.2 km PM2.5: 10.1 µg/m³
42
Ottawa
1.2 km PM2.5: 10.1 µg/m³
38
Ottawa
1.2 km PM2.5: 9.1 µg/m³
25
Ottawa
1.2 km PM2.5: 6.0 µg/m³
50
Ottawa
1.2 km PM2.5: 12.0 µg/m³
29
Ottawa
1.2 km PM2.5: 7.0 µg/m³
42
Ottawa Downtown, Ontario, Canada
3.1 km PM2.5: 10.1 µg/m³

What cities are near Ottawa?

46 Centretown 46 Hull 47 Ottawa South 48 Vanier 47 Alta Vista 48 Gatineau 47 Gloucester 47 Aylmer 47 Nepean 49 Templeton-Est
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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 2026-08-08T07:06 UTC.