How Dogs Are Affected by Summer Heat

Summer is a season many of us associate with long walks, relaxing moments in the park, and the pleasure of the sun. However, for dogs, high temperatures can be far more dangerous than we might imagine. Unlike humans, dogs don’t sweat through their entire body, which makes it harder for them to cool down. When heat and humidity rise, even a simple walk can pose serious health risks.

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5/3/20251 min read

How Dogs Are Affected by Summer Heat

Summer is a season many of us associate with long walks, relaxing moments in the park, and the pleasure of the sun. However, for dogs, high temperatures can be far more dangerous than we might imagine. Unlike humans, dogs don’t sweat through their entire body, which makes it harder for them to cool down. When heat and humidity rise, even a simple walk can pose serious health risks.

Dogs have sweat glands only in the pads of their paws, and this limited form of sweating isn’t enough to regulate their body temperature. Their primary cooling mechanism is panting—evaporation of saliva from the tongue helps release excess heat. But on very hot and humid days, even this system can become ineffective.

Many dog owners believe that the risk only begins when temperatures exceed 30°C (86°F). However, experts recommend caution as early as 25°C (77°F), especially when humidity is high. It’s also important to remember that surfaces like asphalt or pavement can get much hotter than the air, posing a risk of burns to your dog’s paws.

Which Breeds Are More at Risk?

Some dog breeds are more sensitive to heat than others:

  • Brachycephalic breeds (short-muzzled), such as Bulldogs, Pugs, and Boxers, struggle to breathe efficiently due to the shape of their nose and throat.

  • Long-haired or thick-coated breeds, like Huskies or Chow Chows, retain more body heat.

  • Puppies and senior dogs: Their ability to regulate body temperature is not as effective as that of healthy adult dogs.

  • Dogs with heart or respiratory conditions: For them, heat can be especially dangerous.

Summer Can Be Wonderful for Them Too—If We Protect Them with Care

Being a responsible dog owner means recognizing the signs of heat stress, choosing the right times for walks, and, when needed, offering additional help—like cooling accessories—to help them stay safe and comfortable.

With a bit of awareness and a lot of love, summer can be joyful for your dog too.

*Not a substitute for professional veterinary help.