As the temperatures and humidity rise, our canine companions depend on us to help them stay cool and hydrated. Heat exhaustion in dogs can quickly escalate and have serious consequences. Read on to learn the signs of heatstroke in dogs and how to avoid its associated dangers.

Signs of Heatstroke in Dogs

Heat exhaustion in dogs sets in when a dog's temperature climbs above the normal range to around 103 degrees Fahrenheit and higher. Around temperatures of 106 degrees F, a dog's risk for heatstroke increases. When heatstroke occurs, damage to the internal organs and brain can be irreversible and fatal.

Early signs a dog is overheating can be as subtle as heavy panting. If the conditions don't improve, signs may progress and include:

a dog eating dog food on a sidewalk with a woman

  • Not responding to their name

  • Seeming slow or groggy

  • Vomiting

  • Diarrhea

  • Trouble walking

  • Blue or purple gums

  • Excessive drooling

  • Collapsing

Breeds at Risk for Heat Exhaustion

Heat exhaustion in dogs can happen to any breed, but some breeds are at an increased risk. Brachycephalic breeds, for instance, are at risk with their shortened noses and faces, making their panting less efficient. Some of the more popular short-nosed breeds include:

Puppies, senior dogs and dogs with chronic medical conditions — such as obesity, heart disease and respiratory illness — are also more prone to heat exhaustion and heatstroke. According to Merck Veterinary Manual, a metabolic disease called malignant hyperthermia can cause elevated body temperatures. At-risk breeds include:

4 Tips to Avoid Heat Exhaustion in Dogs

Scorching temperatures are dangerous for our furry friends, possibly leading to organ damage and even death. Luckily, you can follow these tips to keep your pup safe in the warmer months.

1. Ensure They Have Fresh, Cool Water

Dogs should always have access to fresh, cool water, but this is even more critical during warmer months and in humid climates. Without the ability to sweat efficiently like humans, dogs pant to compensate and keep their core temperatures from escalating too rapidly. When a dog pants, their body's water supply evaporates more rapidly as part of this built-in cooling behavior, making a full and fresh bowl of water critical for warm days.

a dog looking out of a car window

2. Never Leave Your Pets Unattended in a Parked Car

Pets should never be left in a car even if the windows are down, as temperatures rise dangerously fast. According to the Humane Society, when outdoor temperatures are a pleasant 72 degrees F, temperatures inside a parked vehicle can climb to 116 degrees F (46 degrees Celsius) within 60 minutes. Even more frightening? Summer days with temperatures of 80 degrees Fahrenheit (26 degrees C) can see indoor car temperatures of 99 degrees F (37 degrees C) within 10 minutes.

3. Keep Your Dog's Coat Well Maintained

While you may believe your dog's fur would make them warm in hot weather, shaving your dog's coat actually robs them of their own natural defense against summer heat and sunburn. Similar to insulation for our homes, a dog's coat provides insulation against both cold and hot weather. If you do opt for a summer cut, leave at least an inch of fur to protect against sunburn.

4. Provide Shade When Outdoor Time Is Unavoidable

While bringing your dog inside to share the air conditioning during intense heat is best, this isn't always possible. If you must have your dog outside, provide them with shade to protect them from the sun's UV rays. An outdoor sprinkler can also provide a quick and fun cool retreat, and a raised dog bed allows increased circulation to keep your dog off hot ground surfaces.

When to Visit the Vet

If you notice signs other than excessive panting, you may be in the danger zone. A dog with a temperature above 103 degrees F (39 degrees C) needs veterinary intervention. If your dog's temperature isn't that high yet, moving them to a cooler environment is key — whether that's moving them to an air-conditioned room or cooling them off with a hose. Don't force your dog to drink as this can be dangerous and cause aspiration.

Wondering about ice as a quick cool down? There's a myth that ingesting ice causes a dog's stomach to twist and turn, leading to an emergency condition called gastric dilatation volvulus (GDV) or bloat. Drinking or eating copious amounts while swallowing excess air quickly followed by exercise is a risk factor for GDV, not drinking ice water or eating ice cubes.

But if your dog is overheating or suffering from heatstroke, you shouldn't attempt to cool them off with ice or ice water, as this can actually slow circulation and the cooling process. Lowering a dog's body temperature must be done in a controlled and safe manner at a veterinary hospital. For noncritical occasions, you can offer your dog both ice cubes and ice water to prevent heat exhaustion. If you suspect your dog is overheating, seeking veterinary care is the safest option.

 

Dr. Laci Schaible Dr. Laci Schaible

Dr. Laci Schaible is a small animal veterinarian, veterinary journalist, and a thought leader in the industry. She received her Doctor of Veterinary Medicine from Texas A&M University and her Masters in Legal Studies from Wake Forest University.