Air Quality in St. John's, Canada

Windy
6.2°C · 95.3% humidity
6.2°
Feels -0.6°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 3pm
54
54
13 6pm
25
33
39 9pm
43
46
48 12am
50
51
52 3am
53
53
53 6am
53
54
54 9am
54
54
54 12pm
54
54
AD 728×90

Air Quality Index Trend

28h · 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.

95.3%
Humidity
69.6 km/h
Wind SE
1029.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
13
3.1 µg/m³
PM10▲
19
20.55 µg/m³
050100150200300500

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

Temperature & Precipitation

PM2.5 Trend

28h · 1 station
PM2.53.1 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
3.1
Median
3.1
Average
3.1
Low
3.1
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +6.6

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

05-30
11.3° 5.6°
3.06 mm
05-31
6.2° 5.4°
0.44 mm
06-01
10.9° 5.8°
0.06 mm
06-02
11.2° 9.2°
06-03
5.0° 4.2°
0.25 mm
06-04
8.9° 4.7°
0.13 mm
06-05
5.5° 4.1°
Both models agree Avg diff: 2.8°C

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

16
St. John's, NewFoundland, Canada
0.5 km PM2.5: 3.8 µg/m³
115
St. John's, NewFoundland, Canada
0.5 km PM2.5: 41.2 µg/m³
13
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 3.1 µg/m³
12
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 2.9 µg/m³
9
Mount Pearl, NewFoundland, Canada
9.3 km PM2.5: 2.2 µg/m³

What cities are near St. John's?

13 Mount Pearl 13 Paradise 13 Conception Bay South 24 Saint-Pierre
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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 2026-05-30T21:18 UTC.