St. John's - Air Quality Health Index

Observed ConditionsFootnote †

  • Past 24 hr
    • Calculated at: 3:30 AM NST Saturday 20 December 2025

    2Low Risk




    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    +

    Low Risk
    (1-3)

    Moderate Risk
    (4-6)

    High Risk
    (7-10)

    Very High Risk



    At-Risk Population:

    General Population:

    • Ideal air quality for outdoor activities.

    Forecast Maximums

  • Next 24 hr
  • Health Message
    • Issued at: 5:00 PM NST Friday 19 December 2025

    Friday night

    2 - Low Risk

    Saturday

    3 - Low Risk

    Saturday night

    3 - Low Risk

    Sunday

    2 - Low Risk

    Who is at risk?

    People with heart and lung conditions are most affected by air pollution.

    To find out if you are at risk, consult the health guide, or your physician.

    Visit the national AQHI Web site to learn more about the AQHI.

    Did you know...?

    People with asthma are more affected by exposure to air pollution - such as diesel exhaust - than others.


    The AQHI is an initiative between Environment Canada, Health Canada, the Department of Environment and Climate Change, and the Department of Health and Community Services of Newfoundland and Labrador.