As temperatures rise during the summer in Montreal, the risk of heatstroke in pets increases significantly. Unlike humans, dogs and cats are much less efficient at regulating their body temperature. Prolonged exposure to high heat can quickly become a veterinary emergency that puts your pet’s life at risk.
At Le Vet Club, an independent veterinary clinic in Montreal, we see an increase in veterinary consultations related to heatwaves every year. Here are our expert tips to help keep your four-legged companions safe during the hottest days of the season.
Why Are Pets More Vulnerable to Heat?
Dogs primarily cool themselves by panting, while cats rely on a combination of grooming and behavioral changes to regulate their body temperature. However, when outdoor temperatures become too high or humidity levels rise, these natural cooling mechanisms quickly become ineffective.
Certain pets are at greater risk, including:
- Puppies and kittens
- Senior pets
- Overweight or obese animals
- Brachycephalic breeds such as French Bulldogs, Pugs, and Persian cats
- Pets with heart or respiratory conditions
If your pet falls into one of these categories, scheduling a consultation with a veterinarian in Montreal can help assess their individual risk factors.

What Are the Signs of Heatstroke?
Heatstroke is a medical emergency that requires immediate attention.
In Dogs
Common symptoms include:
- Excessive panting
- Heavy drooling
- Weakness or lethargy
- Difficulty walking
- Vomiting
- Bright red or bluish gums
- Collapse or loss of consciousness
In Cats
Although less common, heatstroke in cats may present with:
- Rapid breathing
- Unusual fatigue
- Restlessness
- Vomiting
- Disorientation
- Tremors
If you notice any of these symptoms, contact a veterinary clinic in Montreal immediately for guidance.
Common Heatwave Mistakes Pet Owners Make
Leaving Pets in a Vehicle
Even with the windows partially open, the temperature inside a parked car can reach dangerous levels within just a few minutes. Every summer, many veterinary emergencies result from this entirely preventable situation.
Walking Your Dog During the Hottest Hours
Asphalt and sidewalks can become hot enough to burn your dog’s paw pads. Plan walks early in the morning or later in the evening when temperatures are cooler.
Forgetting About Hydration
Fresh, clean water should always be available. During heatwaves, placing multiple water bowls throughout your home can encourage your pet to stay hydrated.

How to Prevent Heatstroke
Keep Your Home Cool
Maintain a well-ventilated home and use air conditioning whenever possible. Fans can also improve your pet’s comfort, although they should not replace proper cooling methods.
Ensure Constant Hydration
Staying hydrated is one of the most effective ways to help prevent heatstroke.
Helpful tips include:
- Refill water bowls several times a day.
- Add ice cubes to drinking water.
- Use a pet water fountain, especially for cats.
- Offer pet-safe frozen treats.
Adjust Physical Activity
Reduce exercise intensity during periods of extreme heat and keep outdoor activities brief.
For highly active or athletic dogs, avoid strenuous exercise whenever the humidex is high.
Provide Plenty of Shade
If your pet spends time outdoors, always ensure they have access to:
- A shaded area
- Good airflow
- Plenty of fresh drinking water
What Should You Do If You Suspect Heatstroke?
If you believe your dog or cat is suffering from heatstroke:
- Move your pet to a cool, shaded location immediately.
- Offer small amounts of fresh water.
- Wet their body with cool or lukewarm water (never ice-cold water).
- Use a fan to help lower their body temperature.
- Contact a veterinary clinic in Montreal, such as Le Vet Club, without delay.
Avoid using ice-cold water, as it can constrict blood vessels and actually slow the cooling process.
Are Apartment Pets in Montreal Also at Risk?
Absolutely.
Apartments exposed to direct sunlight can become dangerously hot, especially in neighborhoods such as Griffintown, Downtown Montreal, and the Southwest.
Even indoor-only pets can develop heatstroke if their environment becomes excessively warm and poorly ventilated.
A veterinary consultation may be recommended for pets with additional risk factors.
Le Vet Club: Your Independent Veterinary Clinic in Montreal
At Le Vet Club, we believe prevention is the best way to protect your pets during Montreal’s increasingly frequent heatwaves. Our experienced veterinary team provides personalized advice for dogs and cats of all ages.
Whether you need a preventive health check, routine veterinary care, or emergency treatment, our Griffintown veterinary clinic proudly serves families throughout Montreal and is committed to keeping pets healthy year-round.
Conclusion
Heatwaves are becoming increasingly common in Montreal and pose a serious health risk to companion animals. By encouraging proper hydration, limiting outdoor activities during peak temperatures, and recognizing the early warning signs of heatstroke, you can greatly reduce the risk to your pet.
If you ever have concerns about your pet’s condition, don’t hesitate to book an appointment with Le Vet Club. Prompt veterinary care can make all the difference in protecting your companion’s health.