Air Quality in St. John's, Canada

Windy
11.6°C · 89.1% humidity
11.6°
Feels 11.6°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
27 11am
27
27
27 2pm
27
27
27 5pm
27
27
27 8pm
27
25
25 11pm
25
25
25 2am
27
27
27 5am
27
27
27 8am
27
27
AD 728×90

Air Quality Index Trend

7h · 1 stn

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

89.1%
Humidity
57.0 km/h
Wind NE
1016.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
27
6.5 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for St. John's?

Temperature & Precipitation

PM2.5 Trend

7h · 1 station
PM2.56.5 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for St. John's?

07-21
17.4° 11.6°
4.5 mm
07-22
13.9° 11.1°
07-23
17.2° 13.2°
07-24
16.9° 13.5°
0.31 mm
07-25
17.4° 14.6°
07-26
21.2° 11.9°
11.31 mm
07-27
16.5° 11.8°
2.75 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near St. John's?

10
St. John's, NewFoundland, Canada
0.5 km PM2.5: 2.4 µg/m³
15
St. John's, NewFoundland, Canada
0.5 km PM2.5: 3.6 µg/m³
23
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 5.5 µg/m³
37
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 8.9 µg/m³
20
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 4.8 µg/m³

What cities are near St. John's?

27 Mount Pearl 27 Paradise 26 Conception Bay South 6 Saint-Pierre
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:20 UTC.