As temperatures soar, now is a good time to remind ourselves how dangerous hot weather can be for dogs. In fact, heat stroke can even be fatal, and remarkably quickly. Luckily, it’s almost always preventable! Let’s take a look at how to tell when it’s too hot to walk your dog.

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What temperature is too hot for a dog to walk?

There is no magic number for when it is too hot to walk your dog. This will depend on a number of factors, including age, breed and any underlying health issues. As a general rule, the risk of heat stroke increases in temperatures over 19-20C. However, some dogs, particularly flat-faced breeds or obese dogs, can suffer in temperatures as low as 16C. Life threatening heat stroke is a serious risk for all dogs if the temperature exceeds 31C. 

Dogs have thick fur coats and can’t sweat to cool down like we do. Dogs try to cool down by panting, and by losing some heat through their paws. 

So, how can you tell if it is too hot to walk your dog? 

  • Hold the back of your hand on the pavement for 5-7 seconds. If it’s too hot to comfortably hold your hand there, then it’s too hot for your dog’s paws. Remember, artificial grass gets hot too! 
  • Would you feel unwell if you went for a walk in a coat? Then it’s probably too hot for your dog.
  • Over around 16C: Be more cautious if your dog is obese or brachycephalic (flat-faced).
  • Over around 20C: Take care, it’s safest to stick to less rigorous exercise, in shady spots. There is a risk of heat stroke for all dogs, but especially if your dog is at higher risk (such as those with underlying heart or respiratory issues, are obese or flat faced breeds). 
  • Over around 24C: Then there is an increased risk of heat stroke, and all dog owners should take measures to protect their dog from the heat.

Remember, these are all guidelines. Every dog is unique and their tolerance for heat will vary, just like in humans. Dogs who are very young, very old, obese, thick coated, flat-faced or have underlying medical conditions are at risk of heat stroke at much lower temperatures. 

Dogs don’t die from missing a walk, but they can die from walking in the heat. So if it feels hot outside, you can still enjoy time with your pup, but it’s best to stick to some basic safety rules. 

How can I keep my dog safe in hot weather?

Here are our top tips for walking your dog safely in the heat:

  • On hot days, only walk your dog early in the morning or late in the evening, when the temperatures are cooler. Peak heat commonly extends to most of the day in summer now! On really hot days it’s often safest not to walk them at all.
  • Plan your route! Choose shady walks with grass or earth, rather than pavements or artificial grass. 
  • If your dog enjoys swimming, this can be a great way to cool off too! Only let your dog swim if you know it is safe, though, with an easy exit point and no hidden currents or blue-green algae.
  • Take a portable water bottle and bowl, so you can offer your dog several drinks during the walk.
  • Use pet safe sunscreen on exposed areas, such as ear tips and noses.
  • Take it slowly, a potter is safer than a run or a ball game in warmer weather.

If it’s too hot for a walk, you could always entertain your canine friend with some new games or training at home. Many dogs will enjoy playing in a paddling pool or sprinkler!

What are the signs of heatstroke in dogs?

The signs of heatstroke can come on slowly, or very quickly over a matter of minutes. Signs to watch out for include:

  • Excessive drooling
  • Excessive panting
  • Unusual tiredness 
  • Swaying, wobbling or weakness
  • Confusion 
  • A fast heart rate 
  • Vomiting 
  • Collapse
  • Bright red gums

If you notice any of these signs, move your dog somewhere cool and pour cool water on their coat. Offer them some cool water if they are able to drink. Call your vet straight away, even if they seem to be improving.

Now you know how to keep your dog safe on a summer walk! It’s always better to be safe than sorry, so if you aren’t sure if it’s too hot, don’t risk it. If you have any concerns about your dog, contact your vet for advice.

Further Reading