Air quality in St. Catharines

Air quality index (AQI) and PM2.5 air pollution in St. Catharines

Last update at (local time)

2.3K people follow this city

  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
  • The profile image of follower
IQAir map with AQI colorful pins

AIR QUALITY DATA CONTRIBUTORS

1 Station operated by

Government of Ontario, Ministry of the Environment

https://cdn.airvisual.net/gov/tiny/airqualityontario.png

Join the movement!

Get a monitor and contributor to air quality data in your city.

BECOME A CONTRIBUTOR
Find out more about contributors and data sources

Pollen

What is the pollen count in St. Catharines today?

IndexN/A
Tree pollenN/A
Grass pollenN/A
Weed pollenN/A
See pollen forecast

Weather

What is the current weather in St. Catharines?

Weather icon
WeatherBroken clouds
Temperature32°F
Humidity74%
Wind15.8 mp/h
Pressure29.9 Hg

live aqi city ranking

Real-time Canada city ranking

#cityUS AQI
1 Valemount, British Columbia

77

2 Houston, British Columbia

74

3 Smithers, British Columbia

55

4 Chetwynd, British Columbia

53

5 Vanderhoof, British Columbia

52

6 Abbotsford, British Columbia

44

7 Smithers St Josephs, British Columbia

44

8 West End, British Columbia

43

9 Golden, British Columbia

38

10 Victoria, British Columbia

34

(local time)

SEE WORLD AQI RANKING

live St. Catharines aqi ranking

Real-time St. Catharines air quality ranking

#stationUS AQI
1 St. Catharines Station

28

(local time)

SEE WORLD AQI RANKING

#1 Air Quality App

Free iOS and Android air quality app

AirVisual App, Free iOS and Android air quality app

US AQI

29

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in St. Catharines?

Air pollution levelAir quality indexMain pollutant
Good 29 US AQIO3
PollutantsConcentration
PM2.5
2µg/m³
O3
70µg/m³trend

PM2.5 concentration in St. Catharines air currently meets the WHO annual air quality guideline value

Health Recommendations

What is the current air quality in St. Catharines?

A man cycling icon
Enjoy outdoor activities
An open window icon
Open your windows to bring clean, fresh air indoors

Forecast

St. Catharines air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Saturday, Mar 16

Good 27 AQI US

Human face indicating AQI level
Weather icon
44.6° 35.6°
Wind rotating 274 degree 15.7 mp/h
Sunday, Mar 17

Good 25 AQI US

Human face indicating AQI level
Weather icon
35.6° 32°
Wind rotating 261 degree 17.9 mp/h
Monday, Mar 18

Good 31 AQI US

Human face indicating AQI level
Weather icon
35.6° 30.2°
Wind rotating 236 degree 24.6 mp/h
Today

Good 29 AQI US

Human face indicating AQI level
Weather icon 100%
35.6° 30.2°
Wind rotating 236 degree 24.6 mp/h
Wednesday, Mar 20

Good 17 AQI US

Human face indicating AQI level
Weather icon 60%
33.8° 28.4°
Wind rotating 278 degree 26.8 mp/h
Thursday, Mar 21

Good 4 AQI US

Human face indicating AQI level
Weather icon 30%
32° 24.8°
Wind rotating 296 degree 22.4 mp/h
Friday, Mar 22

Good 7 AQI US

Human face indicating AQI level
Weather icon 100%
37.4° 26.6°
Wind rotating 82 degree 15.7 mp/h
Saturday, Mar 23

Good 12 AQI US

Human face indicating AQI level
Weather icon 100%
39.2° 26.6°
Wind rotating 307 degree 24.6 mp/h
Sunday, Mar 24

Good 5 AQI US

Human face indicating AQI level
Weather icon
30.2° 23°
Wind rotating 330 degree 15.7 mp/h
Monday, Mar 25

Good 8 AQI US

Human face indicating AQI level
Weather icon 40%
44.6° 32°
Wind rotating 185 degree 15.7 mp/h

Interested in hourly forecast? Get the app

How to best protect from air pollution?

Reduce your air pollution exposure in St. Catharines

St. Catharines air quality data attribution

1Contributor

Where is the cleanest air quality in St. Catharines?

Cart
Your cart is empty

Connect With IQAir

Sign up for our newsletter

iqair qr code for newsletter