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Extreme Heat: How to Prepare and Stay Safe

Extreme heat is a growing climate risk in PEI. Learn how to prepare, stay cool, and protect yourself and others during heat events.

How can I prepare for a heat wave?

Watch this short video to learn simple steps you can take to protect yourself, your household, and people around you during extreme heat.

What is HARS?

PEI’s Heat Alert and Response System (HARS) supports a coordinated, province-wide approach to preparing for and responding to extreme heat. It helps Islanders, municipalities, community organizations, and other partners access consistent heat-health information during periods of hot weather.

Learn more about HARS

Know the Heat Alert Levels

Understanding the alert levels can help you gauge the severity of the heat and take appropriate action.

Uncomfortable heat

Yellow Heat Warning

Issued when forecasts show at least two consecutive days of 28°C or higher, or a humidex of 36.

Dangerous heat

Orange Heat Alert

Used for more severe heat, such as daytime highs of 31°C or higher, three or more days of heat, or other conditions that may increase health impacts.

Very dangerous heat

Red Extreme Heat Emergency

Reserved for severe heat events that require enhanced emergency coordination.

How to Stay Safe During Hot Weather

Before Hot Weather

Make a plan for how you will stay cool.
Identify locations you can go to if your home gets too hot.
Check weather alerts and heat-health information regularly.
Plan to check in on neighbours, friends, family, or others who may need support.
Prepare supplies such as water, light clothing, fans, and necessary medications.

During Hot Weather

Drink water often, even before you feel thirsty.
Spend time in cool or air-conditioned places whenever possible.
Reduce outdoor activity, especially during the hottest part of the day.
Keep blinds or curtains closed during peak heat hours to block the sun.
Check on people who may be more vulnerable to heat.
Watch for signs of heat-related illness.