Hot weather and heatstroke in dogs

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Which dogs are most at risk?

Any dog can overheat, but the risk is higher in flat-faced breeds such as pugs, bulldogs and French bulldogs, dogs that are overweight, older dogs, young puppies, thick-coated breeds, and dogs with heart or breathing problems. Very active dogs that will not stop playing are also at risk.

Common causes

• Exercise on warm days. More dogs overheat on walks than in cars.
• Cars, conservatories and caravans, which heat up very quickly even when it does not feel hot outside. Never leave a dog in a parked car, even with the windows open.
• No shade or water in the garden.

Signs of heatstroke

Heavy panting, drooling, a bright red or dark tongue and gums, restlessness, weakness, stumbling, vomiting, diarrhoea, confusion, collapse or seizures. Heatstroke is an emergency and can be fatal.

First aid while you contact your vet

• Move your dog into shade or a cool room straight away.
• Pour cool (not ice-cold) water over them, especially the belly, neck and legs, and let a fan or breeze help.
• Do not leave a wet towel lying over them, as it can trap heat.
• Offer small amounts of cool water to drink, but do not force it.
• Call your vet and get them there, cooling them on the way if you can.

Staying safe in summer

• Walk early in the morning or late in the evening, and skip the walk on very hot days. Gentle games indoors are fine instead.
• Check pavements with the back of your hand. If you cannot hold it there for a few seconds, it is too hot for paws.
• Always carry water, and provide shade and fresh water at home.
• Keep your dog a healthy weight, which helps all year round.

This guide is general information for UK dog owners and is not a substitute for advice from your vet. If you are worried about your dog, contact your vet straight away, or your nearest out-of-hours emergency vet.