Ottawa is experiencing one of its hottest days of the summer. Learn how to stay cool, protect your home, avoid heat-related illness, and safely navigate extreme heat conditions in the capital.
If you've stepped outside today, you've probably noticed one thing immediately: it's hot. Really hot.
Ottawa is experiencing one of the most intense heat events of the summer, with temperatures soaring into the 30s and humidex values making it feel even warmer. The combination of heat and humidity can make outdoor activities uncomfortable and, in some cases, dangerous.
While many residents are enjoying patios, beaches, and summer events, days like today are also a reminder of the importance of staying hydrated, protecting your home, and recognizing the signs of heat-related illness.
Here's what Ottawa residents should know during today's extreme heat.
Why Does Ottawa Feel So Hot?
Many people are surprised by how intense Ottawa summers can be.
While cities like Toronto often benefit from lake breezes, Ottawa's inland location can create conditions where heat and humidity become trapped over the region.
The result?
A temperature of 32°C can quickly feel like:
38°C
40°C
Even higher with the humidex
That's why today's heat feels much more intense than the actual air temperature suggests.
Stay Hydrated
One of the simplest ways to stay safe is also one of the most important.
Drink water throughout the day, even if you don't feel thirsty.
Some quick tips:
✔ Carry a reusable water bottle
✔ Limit alcohol during peak heat
✔ Drink extra water if exercising outdoors
✔ Take regular breaks in shaded or air-conditioned spaces
By the time you feel thirsty, your body may already be dehydrated.
Avoid Outdoor Activity During Peak Hours
The hottest part of the day is typically between:
11:00 AM and 4:00 PM
If possible, schedule activities:
Early in the morning
Later in the evening
In shaded areas
This is especially important for:
Children
Seniors
People with health conditions
Outdoor workers
Cool Off at Ottawa's Beaches
One of the best ways to beat the heat is to get near the water.
Popular options include:
Petrie Island
A favourite east-end destination featuring:
Sandy beaches
Swimming areas
Paddleboarding
Picnic spaces
Mooney's Bay
One of Ottawa's most popular urban beaches with plenty of space and amenities.
Westboro Beach
Recently revitalized and offering beautiful views of the Ottawa River.
Expect larger crowds than usual during today's heat.
Visit an Air-Conditioned Museum
Not every summer activity needs to happen outdoors.
Ottawa's museums provide a perfect escape from extreme temperatures.
Great choices include:
Canadian Museum of Nature
Canadian War Museum
National Gallery of Canada
Canadian Museum of History
Canada Science and Technology Museum
You'll stay cool while exploring some of Canada's top attractions.
Don't Forget Your Pets
Today's heat isn't just tough on people.
Pets can overheat quickly.
If you're walking your dog:
Go early in the morning
Walk later in the evening
Bring water
Avoid hot pavement
A simple test:
If the pavement feels too hot for your hand, it's too hot for your pet's paws.
And remember—never leave a pet in a parked vehicle.
Keep Your Home Cool
Many Ottawa homeowners are doing everything possible to keep indoor temperatures manageable.
Some simple strategies include:
Close Blinds and Curtains
Especially on south- and west-facing windows.
Run Ceiling Fans
Fans help circulate air and reduce the workload on your air conditioner.
Limit Heat-Producing Appliances
Consider avoiding:
Ovens
Dryers
Dishwashers during the hottest part of the day
Change HVAC Filters
A clean filter helps your air conditioning system run more efficiently.
Check on Family and Neighbours
Extreme heat can be particularly dangerous for:
Seniors
People living alone
Individuals with medical conditions
A quick phone call or visit can go a long way.
Sometimes the most important heat-safety tip has nothing to do with weather and everything to do with community.
Signs of Heat Exhaustion
Watch for symptoms such as:
Excessive sweating
Dizziness
Headache
Nausea
Muscle cramps
Fatigue
If someone experiences severe symptoms or becomes confused, seek medical assistance immediately.
Heat-related illnesses can escalate quickly.
Homeowner Tips During Extreme Heat
Today's temperatures can also put additional strain on your home.
Consider:
Checking Your Air Conditioner
If your AC is struggling, now may be the time for maintenance before peak summer demand continues.
Watering Strategically
Water lawns and gardens early in the morning or later in the evening to reduce evaporation.
Inspecting Attic Ventilation
Poor ventilation can trap heat and increase cooling costs.
Monitoring Energy Usage
Extreme heat often leads to increased electricity consumption across the city.
Why Ottawa Summers Feel More Extreme
In recent years, Ottawa has experienced:
More heat warnings
More severe thunderstorms
Greater weather variability
Longer stretches of high humidity
Many homeowners are increasingly investing in:
Air conditioning upgrades
Better insulation
Energy-efficient windows
Improved landscaping for shade
Weather resilience is becoming an important part of homeownership.
Best Places to Escape the Heat Today
If you're looking for immediate relief, consider:
🏖️ Petrie Island
🏖️ Mooney's Bay
🏛️ Canadian Museum of Nature
🛍️ Rideau Centre
☕ Your favourite air-conditioned coffee shop
🌳 Dominion Arboretum (early morning or evening)
🚣 Dow's Lake paddle rentals
Frequently Asked Questions
How hot is Ottawa today?
Temperatures are reaching the low-to-mid 30s, with humidex values making it feel significantly hotter.
What is the humidex?
The humidex combines temperature and humidity to show how hot it actually feels to the human body.
Is it safe to exercise outdoors?
It's best to avoid strenuous activity during peak afternoon hours and stay hydrated.
What's the best Ottawa beach during a heat wave?
Petrie Island and Mooney's Bay are two of the most popular choices.
How can I keep my home cooler?
Close blinds, use fans, avoid heat-producing appliances, and ensure your HVAC system is operating efficiently.
Should I be concerned about my pets?
Yes. Limit outdoor exposure, provide fresh water, and avoid walking on hot pavement.
Final Thoughts
Ottawa summers are one of the reasons so many people love living here—but days like today remind us that extreme heat deserves respect.
Whether you're heading to the beach, enjoying a patio, exploring a museum, or simply relaxing at home, taking a few precautions can help you stay safe and comfortable.
The good news is that Ottawa offers plenty of ways to beat the heat. From Petrie Island and Mooney's Bay to air-conditioned museums and shaded parks, there are lots of options for making the most of the summer while staying cool.
And if you're planning to spend time outdoors today, don't forget the essentials: water, sunscreen, shade, and common sense.
Stay cool, Ottawa.
