Hot Dog Summer: How to Keep Your Dog Safe in the Heat

As the days heat up, many of us start adjusting our routines. Earlier walks, iced coffees, and seeking out the shade. But for our dogs, these rising temperatures can be much more than a seasonal nuisance.

Some, like Frank, know exactly what to do: find the coolest patch of ground, or head straight for the nearest body of water. Others? They sprawl out in the sun like they’ve booked an all-inclusive, head back, paws up, zero self-preservation.

The truth is, heat affects every dog differently, but every dog is at risk in high temperatures. So let’s look at what you can do to keep your dog safe, what to watch out for, and how to be prepared, even when you’re mantrailing.

Do All Dogs Struggle in the Heat?

Not all dogs are equally affected by hot weather, but any dog can overheat given the wrong conditions.

Some dogs are naturally more vulnerable, including:

• Flat-faced breeds like Pugs, Bulldogs, Boxers

• Older dogs

• Overweight dogs

• Thick or double-coated breeds (Huskies, Bernese Mountain Dogs)

• Dogs with medical conditions

• Dark-coated dogs, as they absorb more heat

• Very energetic dogs who won’t slow down on their own

  
  

That said, it’s also individual. Frank’s not a brachycephalic breed, but he really struggles with the heat. So just because your dog doesn’t tick a box on the list, doesn’t mean you’re in the clear. Know your dog, and keep checking in.

What Actually Happens When a Dog Overheats

Dogs don’t sweat like we do. They rely mostly on panting to cool themselves down. When they pant, moisture evaporates from the mouth, nasal passages, and lungs, helping release heat. Blood is also circulated closer to the skin to lose heat through radiation.

But when it’s too hot or humid, these natural systems get overwhelmed. Panting becomes less effective, and their core temperature starts to rise.

Internally, this can lead to:

• Strained circulation

• Cellular damage in the brain, gut, liver, and kidneys

• Drop in blood pressure

• Widespread inflammation

• Eventually, organ failure

  
  

The scariest part? Some of this damage happens before outward signs are obvious. By the time your dog seems weak, wobbly, or confused, their body may already be under serious stress.

A dog’s normal temperature is 38.3–39.2°C (101–102.5°F). Heatstroke is considered likely at 41°C (106°F) or higher, and that’s a medical emergency.

That’s why early prevention is so important. Let’s talk about what to look out for.

Recognizing Heatstroke

Heatstroke can come on faster than you’d expect, and it’s serious. Learn the signs so you can act quickly.

Early warning signs:

• Heavy panting

• Bright red gums or tongue

• Excessive drooling

• Restlessness or slowing down unexpectedly

More serious symptoms:

• Vomiting or diarrhea

• Wobbly or disoriented

• Rapid heart rate

• Collapse or seizures

  
  

If you suspect heatstroke:

• Move your dog into the shade or indoors immediately

• Offer water, but don’t force them to drink

• Wet them with cool (not ice-cold) water, especially on the paws, belly, and inner thighs

• Call a vet without delay

Hot Weather Do’s and Don’ts

Do:

• Walk in the early morning or late evening

• Provide constant access to water and shade

• Add cooling mats or fans to indoor spaces

• Let your dog rest as much as they want

• Offer frozen treats to help cool them internally

• Keep an eye on breathing, energy, and overall mood

Don’t:

• Walk your dog on hot pavements (test with your hand for 5 seconds)

• Leave your dog unattended in a closed car, even for a short time

• Push your dog to train, play, or go further than they want

• Assume they’ll stop before it’s too much.. some dogs won’t

Mantrailing in the Heat

Mantrailing brings its own challenges in hot weather, especially as dogs wait in cars between trails. That’s why safety is always our top priority, and a few important changes are made during warmer months:

Here’s what we do:

• Sessions start earlier in the morning to avoid peak heat

• Someone always waits with dogs to ensure their welfare, regularly checking cars and dogs between runs

• Dogs are only trailed when it’s safe to do so. The moment it’s too warm, we stop

  
  

Here’s what you can do:

While dogs are waiting:

• Park in the shade where possible

• Use Aluminet car covers to reflect heat and keep the vehicle cooler

• Crack windows or use battery-powered fans (safely secured)

• Use cool mats in crates or car beds

• Ensure water is accessible

• Keep the boot open (if safe) and create airflow through the car

  
  

While dogs are trailing:

• Bring portable water and a collapsible bowl

• Take cool-down breaks mid-trail if needed

• Consider cooling vests, but with caution

Cooling vests can be helpful when used correctly, especially for dogs that overheat easily. But be aware: if the vest stays wet for too long or isn’t re-wet regularly, it can trap heat and cause the opposite effect. Always monitor how your dog responds to it.

Conclusion: Every Dog is Different

Just like humans, dogs cope with heat in their own way. Some will sunbathe until they’re panting heavily. Others, like Frank, take one look at the sun and say “absolutely not.” The key is to know what’s normal for your dog, and adjust accordingly.

Watch how they move. Check how quickly they recover. If you’re ever unsure, play it safe and keep it cool.

The goal isn’t to hide inside all summer. It’s to enjoy the season safely, with a little planning, a bit of flexibility, and a lot of listening to your dog.

Stay cool, stay alert, and if in doubt… find the shade.

Happy Mantrailing!

Danielle & Frank

The Frank 'n' Scents Mantrailing Team