Heatstroke Prevention for Dogs: Essential Summer Safety Advice

Warm weather can be enjoyable for both dogs and their owners, but hot conditions can quickly become dangerous. Heatstroke in dogs is a serious medical emergency that can develop faster than many people realise, especially during UK heatwaves, humid days, or even on what seems like a mild summer afternoon.

At Vetscriptions, we know how important it is to help pet owners keep their dogs safe, comfortable, and well cared for in warmer weather. Understanding how heatstroke happens, knowing which dogs are more at risk, and taking a few sensible precautions can make a big difference.

This article is intended for general guidance only and should not replace professional veterinary advice. If your pet is unwell or showing concerning symptoms, please contact your veterinary surgeon.

What is heatstroke in dogs?

Heatstroke happens when a dog’s body temperature rises too high and they can no longer cool themselves effectively. Unlike people, dogs do not sweat through their skin in the same way. They mainly cool down by panting and through small areas such as their paw pads. This means they can struggle much more in hot weather, particularly if they are exercising, travelling, or resting in a poorly ventilated space.

Heatstroke can affect the whole body, including the brain, breathing, heart, stomach, and internal organs. Without prompt action, it can become life-threatening very quickly.

Why dogs are vulnerable in hot weather

Even in the UK, summer temperatures can be high enough to put dogs at risk. It is not just extreme sunshine that causes problems. Heatstroke can also happen on humid days, in conservatories, in parked cars, during walks on warm pavements, or after energetic play in the garden.

Some dogs are less able to cope with heat than others. Dogs at higher risk include:

• Flat-faced breeds such as Bulldogs, Pugs, French Bulldogs, and Boston Terriers
• Older dogs
• Puppies
• Overweight dogs
• Dogs with heart or breathing conditions
• Dogs with thick or heavy coats
• Dogs that are not used to warm weather

If your dog has an ongoing health condition or takes regular medication, it is worth checking with your veterinary surgeon whether any extra summer precautions are needed. If your dog is on long-term treatment, you can also browse our dog prescription products or read our prescription FAQs for general guidance on ordering prescribed medicines responsibly.

Common signs of heatstroke in dogs

Early recognition is extremely important. The sooner you spot a problem, the sooner you can help your dog and contact a vet.

Early warning signs

• Excessive panting
• Drooling more than usual
• Restlessness or agitation
• Seeking shade or refusing to move
• Bright red gums or tongue
• Increased heart rate

More serious symptoms

• Vomiting or diarrhoea
• Weakness or wobbliness
• Confusion or disorientation
• Collapse
• Seizures
• Difficulty breathing

If your dog shows signs of heatstroke, treat it as urgent and contact your veterinary surgeon straight away.

How to prevent heatstroke in dogs

Avoid walking during the hottest part of the day

In summer, it is usually safest to walk dogs early in the morning or later in the evening when temperatures are lower. Midday and afternoon heat can be surprisingly intense, especially when there is little breeze.

Shorter, gentler walks may be better during very warm spells. Some days, your dog may be safer skipping a walk altogether and enjoying calmer indoor activities instead.

Always provide access to fresh water

Make sure your dog has cool, clean drinking water available at all times, both indoors and outdoors. If you are going out, bring water and a bowl with you. Portable pet water bottles or collapsible bowls can be useful for day trips and car journeys.

Keep your home cool

Close curtains or blinds in sunny rooms, improve airflow where possible, and make sure your dog can move to the coolest area of the house. Fans can help air circulation, although they are not always enough on their own in very hot conditions.

Many dogs appreciate cool mats, damp towels to lie near, or tiled floors during the summer months. Make sure any cooling products are used safely and according to the manufacturer’s instructions.

Never leave a dog in a parked car

This is one of the most important summer safety rules. A parked car can become dangerously hot in minutes, even if the windows are left slightly open or the car is parked in shade. Dogs should never be left inside a vehicle during warm weather.

Be careful with exercise and play

Running, ball games, and rough play can quickly raise a dog’s body temperature. This is especially risky in warm or humid weather. Many dogs will keep going because they are excited, even when they are starting to overheat.

Choose gentle exercise instead, allow plenty of rest breaks, and stop straight away if your dog starts panting heavily.

Check ground temperatures

Hot pavements, artificial grass, patios, and sand can burn paws and add to overheating. A simple guide is to place the back of your hand on the surface for several seconds. If it feels too hot for you, it is too hot for your dog.

Take extra care with higher-risk dogs

If your dog is older, flat-faced, overweight, or has a medical condition, be especially cautious. These dogs may need more rest, shorter walks, and closer monitoring in warm weather. If your dog has heart, breathing, joint, or mobility concerns, it may help to review their general support needs with your vet and explore suitable products in our dog heart products, dog respiratory products, or dog joint care ranges where appropriate.

Summer safety beyond the walk

Heatstroke prevention is not only about exercise. Everyday routines often need adjusting in hot weather.

• Make car journeys as short and cool as possible
• Use shade in the garden, but remember shade moves during the day
• Do not rely on paddling pools alone to keep a dog cool
• Keep grooming sensible, but ask your groomer or vet before clipping coats very short
• Make sure kennels, sheds, and outdoor rooms are well ventilated and not trapping heat

If your dog is spending more time indoors because of the heat, calm enrichment can help prevent boredom. Food toys, gentle training, or suitable chews may be helpful. You can also browse our dog food and treats and dog accessories collections for practical everyday support.

What to do if you think your dog is overheating

If you suspect your dog is too hot, act quickly and contact your veterinary surgeon.

Immediate first steps

• Move your dog to a cool, shaded, and well-ventilated area
• Offer small amounts of cool water to drink
• Pour cool, not icy, water over their body
• Focus on the trunk, belly, paws, and inner thighs
• Use a fan if available
• Contact your veterinary practice urgently

Avoid using ice-cold water or ice packs directly, as this can sometimes make cooling less effective and may cause additional problems.

Even if your dog seems to improve, they should still be checked by a vet. Heatstroke can lead to serious internal complications that are not always obvious straight away.

Can other pets be affected by heat?

Yes. While dogs are a major concern in summer, cats, rabbits, guinea pigs, and other small pets can also struggle in hot weather. Hutches, carriers, conservatories, and sunny rooms can become too warm very quickly.

If you have other pets at home, it is worth reviewing their environment too. You can explore practical seasonal essentials through our cat collection and small animal collection.

Planning ahead for a safe summer

A little preparation can make hot weather much easier to manage. Before summer temperatures rise, it may help to:

• Check your dog’s usual walking routine and adjust the timing
• Keep travel water bowls handy in the car or by the door
• Make sure your dog’s parasite prevention is up to date, as warmer weather often means more fleas and ticks
• Review any repeat prescriptions in good time so you do not run short

If you need help with parasite control, our dog flea and worming products and wider flea, tick & worming collection may be useful. If your pet has prescribed treatment, you can find guidance on how to order a prescription medicine through Vetscriptions.

When to contact a veterinary surgeon

Contact a vet urgently if your dog:

• Is panting heavily and not settling
• Seems weak, distressed, or disorientated
• Has vomited or collapsed
• Is struggling to breathe
• Shows any signs of possible heatstroke

It is always better to seek advice early. If you are unsure, speak to your veterinary practice for guidance.

Conclusion

Heatstroke in dogs is serious, but in many cases it can be prevented with simple, sensible steps. Avoiding the hottest parts of the day, providing constant access to water and shade, reducing strenuous exercise, and recognising the early warning signs can all help keep your dog safe during summer.

At Vetscriptions, we are here to support UK pet owners with trusted information, helpful pet healthcare products, and straightforward guidance on ordering medications responsibly. You can explore our dog collection, learn more about us, or contact us if you need help finding the right products for your pet’s routine care.

If your dog is unwell, overheating, or showing any worrying symptoms, please contact your veterinary surgeon without delay. For more practical pet health advice and everyday essentials, visit Vetscriptions.