Summer 2025 could be Canada's hottest, riskiest yet — here’s what you must do now to stay safe, breathe easy and protect what matters most

Canadians, brace yourselves: Summer 2025 is expected to be hotter than normal across most of the country — and with heat comes a higher risk of wildfires, poor air quality and unpredictable weather swings.

In the latest report from the Environment and Climate Change Canada (ECCC), Canadians are getting a preview of what to expect from the weather, this summer. More importantly, the ECCC reports helps Canadians learn what they'll need to know and do to stay safe and make the most of the summer months.

Expect the heat and plan around it

ECCC predicts above-normal temperatures across much of Canada, with a few exceptions along the Beaufort Sea in the northwest near Alaska.

The ECCC report comes after a spring marked by erratic temperature shifts and dry spells — especially in the Prairies. It's also a reminder of things to come. As Manitoba and B.C. continue to battle raging wildfires, Canadians need to be aware that this summer the predicted temperatures are setting the stage for a scorcher of a summer.

What this means for Canadians

To help battle the downside of hot temperatures, Canadians can plan accordingly. For instance:

• Plan outdoor activities wisely. Avoid peak heat hours when possible.
• Hydrate and cool down. Don’t underestimate the danger of heat-related illness.
• Rethink travel. Popular parks and wilderness areas could be affected by fire bans or closures.

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Wildfire season is here —and it’s real

Drier spring conditions plus the incoming heat increase the likelihood of wildfires. Beyond the obvious fire risk, these blazes could worsen air quality and pose serious health threats, especially for people with respiratory issues.

To help, here are steps Canadians can take:

• Monitor the Air Quality Health Index (AQHI) regularly.
• Limit outdoor exertion on poor air days.
• Prepare a home evacuation kit, just in case.

Get the right tools to help

To help you stay ahead of the potential risks that come with hotter temperatures, there are a number of official tools you can use. For instance, you can download the WeatherCAN app for up-to-the-minute forecasts and emergency alerts and follow AQHI updates to gauge air quality in your area.

Another option is to use checklists to help you plan and address heat risks while enjoying the summer months. You can find five simple checklists at the bottom of this article that can help keep you safe this summer season.

Remember to take weather warnings seriously — a well-thought out plan to address heat and related issues can actually be life-saving, particularly for Canadians who struggle with heart or respitory illnesses.

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Climate change: The bigger picture

This summer outlook isn’t a fluke. ECCC scientists are now tracking how climate change affects extreme heat and cold, with plans to assess extreme rainfall events later in 2025. Expect more frequent and intense weather extremes going forward — including heat waves, heavy rains, and urban flooding.

Translation: Long-term adaptation isn’t optional. It’s essential.

Final tips for a safer summer

For those looking for the best tools to prepare for a hot summer, consider the following resources:

• Use Canada’s Get Prepared resources to build a personal emergency plan.
• Stay connected with local weather and fire authorities.
• If you’re heading to the wilderness, check for fire bans or safety advisories before you go.

Bottom line: Summer 2025 could be hotter, drier, and riskier than usual. Smart planning, real-time alerts and a little foresight can help you enjoy it safely.

5 summer preparedness checklists for Canadians for 2025

Heat & Weather Readiness

• Check daily weather forecasts on WeatherCAN app
• Schedule outdoor activities for early morning or evening
• Wear light, breathable clothing and stay hydrated
• Set up fans or AC in your home/workspace
• Identify local cooling centers (especially if vulnerable to heat)

Wildfire & Air Quality Safety

• Monitor Air Quality Health Index (AQHI) in your area
• Avoid strenuous outdoor activity during poor air quality
• Keep windows closed on smoky days
• Pack an emergency “go bag” (medications, IDs, supplies)
• Check fire bans before camping or hiking

Tools & Alerts

• Install WeatherCAN app on your phone
• Enable AQHI and severe weather alerts
• Bookmark Canada.ca/weather
• Follow Environment and Climate Change Canada on social media

Emergency Planning

• Create a 72-hour emergency kit (water, food, flashlight, radio)
• Review your household’s emergency plan
• Store key documents (IDs, insurance) in a safe, accessible place
• Know local evacuation routes and shelter locations

Long-Term Preparedness

• Learn about local climate risks (flood, fire, extreme heat)
• Take steps to weatherproof your home (e.g., insulation, drainage)
• Stay informed on climate adaptation resources

Tip: Print two copies — keep one in the house and one in your car or travel bag.

Sources

1. Government of Canada: WeatherCAN

2. Government of Canada: Air Quality Health Index

2. Government of Canada: Get Prepared