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7 Dog Breeds that Don’t Cope Well in Hot Weather—and How to Keep Them Cool

If you thought only thick-coated breeds were affected, think again

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Dog French Bulldog sitting on green grass in summer park
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We’re still a few weeks out from the official start of summer, but, for some parts of the country, the warm weather has arrived! While many of us will welcome the sunshine, high temperatures can pose serious risks for our four-legged friends—especially dog breeds that inherently struggle to cope in the heat.

"A temperature of up to 23°C [73°F] is fine for dogs to be out and about in. However, with temperatures above 24°C [75°F], it starts to get rather dangerous for dogs to be exercised outdoors and if it reaches above 30°C [86°F], the dog is at a very high risk of heatstroke," says dog behaviorist and accredited dog trainer Debby Lucken.

This means that any dog can potentially develop heatstroke if exposed to the sun in hot temperatures for too long, but according to research, some breeds are more susceptible.

This doesn't just include thick-coated breeds, but also brachycephalic types (those with a flat face and short snout), heavy-set or overweight dogs, puppies, and older canines.

Signs your dog is overheating include excessive panting, increased heart rate and pale or bright red gums. To help them keep cool, avoid walking them in the midday heat, block out the sun in your home as much as possible and provide cool treats and plenty of water (read more here).

Here are 7 popular breeds that tend to struggle with heat.

1

French Bulldog

happy french bulldog in flowers outdoors
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French Bulldogs are a brachycephalic breed, whose narrowed airways make it physically difficult for them to pant, which is a vital cooling mechanism for dogs.

2

Pug

pug dog standing outside
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The pug is another popular short-snouted breed that struggles to regulate its body temperature during summer. It's best to keep them out of the blistering sun so they don't overheat in the first place.

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3

Boston Terrier

boston terrier dog
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The same goes for Boston Terriers, whose narrowed skull, like those of French Bulldogs and Pugs, makes it harder for them to breathe and pant.

4

Golden Retriever

golden retriever dog sitting outside on the grass
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Thick-coated breeds are at greater risk of heatstroke when temperatures rise above 24°C. With Golden Retrievers among the UK's most popular breeds, owners are being urged to stay vigilant during heatwaves and throughout the summer months generally.

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5

Chow Chow

a sitting black chow chow puppya 12 weeks male puppy dog with a blue tongue on green grass
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This Chinese breed has an exceptionally dense double coat that, paired with its facial structure, makes it highly susceptible to heat stroke. Air conditioning, or an indoor fan, is a must during hot weather for those who own a Chow Chow.

6

Great Dane

great dane
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Great Danes are neither brachycephalic nor thick-coated, but they still struggle in hot weather. Their large size and substantial body mass mean they generate and retain more internal heat, which makes them prone to overheating.

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7

Saint Bernard

saint bernard dog
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Bred for the snow-covered Swiss Alps, this thick-coated breed is extremely susceptible to heat exhaustion. Saint Bernards should be monitored closely and kept indoors with air conditioning or fans during periods of hot weather.

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Wanda Sachs
Multiplatform Writer

Wanda Sachs is the Multiplatform Writer for Country Living and House Beautiful, exploring the latest in gardening, wildlife and sustainable living alongside interiors and property. She is particularly interested in human-interest stories, the intersection of design and pop culture, and the evolving relationship between urban and rural life. Previously, she served as Associate Editor at The Berliner in Berlin, where she reported on culture and fashion. Wanda studied English and German at the Goethe University Frankfurt and Exeter University.

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