If your dog shows signs of heatstroke, act immediately but gradually. Here’s what you should do:

1. Move your dog to a shaded or air-conditioned space

2. Douse or hose your dog with cool (not cold) water. Avoid ice water, which may cause shock

3. Place cool, wet towels on your dog’s paws, armpits, and head

4. Use a fan or portable cooler to help bring down their body temperature

5. Offer small amounts of cool water to drink. Avoid over-hydration or gulping

6. Continue cooling until your dog’s breathing steadies. If he begins to shiver, stop cooling because you may have overdone it

Then go to the vet immediately. Even if your dog looks better, internal damage could still be occurring. 

Dogs are especially vulnerable to heatstroke, a life-threatening condition that can come on quickly. If you also have rabbits, check out our article on heatstroke in rabbits — they are just as sensitive to the heat.

What Exactly is Heatstroke and Why Should Dog Owners in Singapore Worry

Heatstroke occurs when your dog’s body temperature rises dangerously high, typically above 40°C and the body can no longer cool down efficiently through panting. Without quick action, heatstroke can cause organ failure, brain damage, or even death.

How to Spot the Early Signs of Heatstroke Before It Turns Dangerous

Early warning signs of heatstroke can be subtle. Be alert to these symptoms:

• Excessive and heavy panting

• Excessive drooling

• Staggering, lethargy, or uncoordinated movement

• Rapid heartbeat

• Dark red or bright red tongue and gums

• Sticky or dry tongue and gums

• Vomiting or diarrhoea (can be bloody in severe cases)

• Collapse or loss of consciousness

Did you know? In a study published in Scientific Reports (2020), heatstroke fatality rates in dogs were 14.2%, with brachycephalic breeds having significantly higher risks.

Which Dogs are Most Likely to Suffer and Why It Matters

Some dogs are more susceptible to heatstroke than others, including:

• Senior dogs

• Puppies

• Dogs with thick, double coats, e.g. Chow Chows, Siberian Huskies

• Brachycephalic breeds (flat-faced), e.g. French Bulldogs, Pugs, Shih Tzus

• Overweight or obese dogs - check your dog's body condition with this handy guide

• Dogs with respiratory or heart conditions

• Dogs left in enclosed, poorly ventilated areas, such as cars or sun-exposed rooms

Never leave your dog in a parked car. Even with the windows cracked open, the temperature can rise above 45°C within minutes under the sun.

The Dos and Don’ts Every Dog Owner Needs to Know to Prevent Heatstroke

Dos:

• Refill your dog’s water bowl frequently

• Walk your dog on grass rather than sun-heated pavements

• Schedule walks during cooler hours (early morning or late evening)

• Ensure your dog has access to shade and ventilation when outside

• Trim long coats to reduce overheating — but avoid shaving too close to the skin

 Don’ts:

• Don’t walk your dog in the afternoon sun (10am–4pm is usually the hottest)

• Don’t dress your dog in clothes during hot weather

• Don’t ignore subtle signs of overheating like restlessness or excessive panting

• Don’t leave your pet outdoors unsupervised on hot days

Want to Keep Your Dog Safe From Heatstroke? Here’s Your Action Plan

Heatstroke in dogs is entirely preventable with the right care and awareness. In hot and humid Singapore, your pet depends on you to keep them comfortable and cool. Recognise the signs, know what to do, and always follow up with a vet visit if you suspect heatstroke.

Need personalised advice? Contact Gaia Vets! Our team is here to help your furry family members stay safe and healthy in every weather!