Dog Heat Safety Guide: How to Prevent Overheating This Summer

Dog Heat Safety Guide: How to Prevent Overheating This Summer

As summer temperatures rise, so does the risk of heat-related illness in dogs. While sunny days often mean more outdoor adventures, warmer weather can quickly become dangerous for our pets if precautions aren’t taken. Dogs are far more vulnerable to overheating than many people realize, and heatstroke can develop much faster than expected.

Learning how to recognize the signs of overheating and making small adjustments to your dog’s routine can make a major difference in keeping them safe, healthy, and comfortable all summer long.

What Is Heatstroke in Dogs?

Heatstroke occurs when a dog’s body temperature rises faster than they can cool themselves down. Unlike humans, dogs do not sweat through their skin to regulate body temperature. Instead, they rely primarily on panting to release heat.

This cooling method is far less effective during high temperatures, humid weather, or strenuous activity. Once a dog’s internal temperature becomes too high, their organs can begin to suffer damage very quickly.

According to the UK Kennel Club, approximately 1 in 7 dogs treated for heatstroke do not survive. Heatstroke can happen not only in hot cars, but during walks, play sessions, backyard time, and even inside poorly ventilated homes. The good news is that early recognition and fast action dramatically improve outcomes.

Signs Your Dog May Be Overheating

Because panting is normal for dogs, the early signs of overheating can sometimes be overlooked. It’s important to pay attention to changes in behavior and breathing patterns, especially during warm weather.

Common warning signs include:

  • Heavy or excessive panting
  • Difficulty breathing
  • Thick drooling or excessive saliva
  • Bright red, pale, or tacky gums
  • Weakness or fatigue
  • Disorientation or wobbliness
  • Vomiting or diarrhea
  • Tremors or seizures
  • Collapse

Some dogs are at greater risk than others, including:

  • Brachycephalic breeds (such as Bulldogs, Pugs, and French Bulldogs)
  • Senior dogs
  • Puppies
  • Overweight pets
  • Dogs with heart or respiratory conditions

If you notice any of these symptoms, move your dog to a cooler area immediately.

What To Do If Your Dog Is Overheating

Heatstroke is a medical emergency, and quick action matters.

If you believe your dog is overheating:

1. Move Them Out of the Heat

Bring your dog indoors or into a shaded, well-ventilated area as quickly as possible.

2. Begin Cooling Slowly

Use cool or room-temperature water on their body. Avoid ice-cold water, as cooling too rapidly may cause shock.

3. Offer Small Amounts of Water

Allow your dog to drink slowly in small amounts. Do not force water.

4. Avoid Covering Them With Wet Towels

Heavy wet towels can trap heat against the body and may worsen the situation.

5. Contact Your Veterinarian Immediately

Even if your dog appears to recover, veterinary care is strongly recommended after any suspected heatstroke event.

When Is It Too Hot for Dogs?

There is no single “safe” temperature for every dog. Heat tolerance depends on several factors, including breed, age, humidity, coat type, weight, and activity level.

However, once temperatures climb into the upper 70s and 80s, many dogs begin facing increased risk, especially during exercise or direct sun exposure.

Hot pavement is another major concern. Asphalt and concrete can become dangerously hot and may burn paw pads within seconds. A simple rule many pet owners use is the “7-second test”: if you cannot comfortably hold the back of your hand against the pavement for 7-10 seconds, it is too hot for your dog’s paws.

Humidity also plays a major role. Since dogs cool themselves through panting, humid air makes it significantly harder for them to regulate body temperature effectively. Always consider humidity, shade/cloud coverage (or lack therof) and your individual dog to determine whether or not it's too hot.

Preventing Heatstroke Before It Starts

Prevention is always the safest approach. Fortunately, a few simple adjustments can help reduce your dog’s risk during warmer months.

Walk During Cooler Hours: Early mornings and evenings are typically the safest times for outdoor walks and exercise. Midday heat is often the most dangerous.

Keep Outdoor Breaks Short: Limit long outdoor sessions during extreme temperatures, especially on humid days.

Always Bring Water: Whether you’re hiking, walking, or spending time outdoors, always carry fresh water and a portable bowl for your dog.

Prioritize Shade: Seek shaded walking routes, parks with tree cover, or use umbrellas and canopies during outdoor events.

Watch the Pavement: Grass is generally much cooler than asphalt or concrete. Whenever possible, stick to shaded or grassy surfaces.

saf Even with windows cracked, vehicle temperatures can rise to deadly levels within minutes.

Fun Indoor Enrichment for Hot Days:

Physical exercise is important, but mental enrichment can be just as effective at tiring dogs out, especially when outdoor activity needs to be limited.

A few ideas for easy, indoor activity include:

- Snuffle Mats & Food Puzzles

- “Find It” Games

- Frozen Treats

- Indoor Training Sessions


Summer can still be full of fun adventures with your dog, as long as safety comes first. Heatstroke can happen quickly, but staying aware of temperatures, recognizing the warning signs, and planning ahead can go a long way in protecting your pup.

By scheduling activities during cooler hours, keeping hydration accessible, and incorporating indoor enrichment when temperatures spike, you can help your dog stay safe, happy, and comfortable all season long.


Empowerment for Pet Parents

Dr. Karen Becker DVM

Check it out

Dr. Judy Morgan DVM

Grab it here

Dr. Conor Brady DVM

Find it here