Managing Heat Stroke in Dogs During Cape Town's Sweltering Heat Wave

Cape Town is experiencing a severe heat wave, with temperatures soaring higher than usual. While many of us take precautions to stay cool, our dogs are especially vulnerable to the dangers of extreme heat. Heat stroke in dogs is a serious condition that can develop quickly and become life-threatening if not treated promptly. This post explains how to recognize, prevent, and manage heat stroke in dogs during Cape Town’s intense heat wave.

Dog panting heavily on shaded porch during heat wave

What Is Heat Stroke in Dogs?

Heat stroke happens when a dog’s body temperature rises to dangerous levels, usually above 40°C. Unlike humans, dogs cannot sweat to cool down except through their paw pads, so they rely mostly on panting and finding shade. When the heat overwhelms their ability to cool off, their internal organs can suffer damage.

Dogs with thick coats, short noses (like bulldogs), older dogs, puppies, and those with health issues are at higher risk. Cape Town’s heat wave, with temperatures often exceeding 35°C, creates perfect conditions for heat stroke.

Heat stress can become heatstroke, which is a medical emergency. The goal is to spot the early signs and act quickly.

Signs of Heat Stroke to Watch For

Recognizing heat stroke early can save your dog’s life. Look for these symptoms:

Early signs your dog is getting too hot

Look for a change from normal.

• Heavy panting that does not settle

• Drooling more than usual

• Restlessness or pacing, then sudden tiredness

• Seeking cool surfaces (tiles, bathroom floor) or trying to dig a cool spot

• Bright red gums or tongue

• Warm ears and body

• Refusing food or losing interest in play

  
  

Severe heatstroke warning signs (emergency)

If you see any of these, treat it as urgent.

• Weakness, wobbling, or collapsing

• Vomiting or diarrhoea (sometimes with blood)

• Rapid heartbeat

• Grey, pale, or very dark gums

• Glazed eyes or confusion

• Seizures

• Unconsciousness

  
  

If your dog is struggling to breathe, collapsing, or has neurological signs, go to an emergency vet immediately.

How to Prevent Heat Stroke in Dogs

Preventing heat stroke is easier than treating it. Here are practical steps to keep your dog safe:

• Avoid midday walks: Walk your dog early in the morning or late in the evening when temperatures are cooler.

• Provide plenty of water: Always have fresh, cool water available. Dogs can dehydrate quickly in the heat.

• Create shaded areas: If your dog spends time outside, ensure there is ample shade to retreat to.

• Never leave dogs in cars: Even with windows cracked, cars can heat up dangerously fast.

• Limit exercise: Reduce intense physical activity during hot days.

• Use cooling mats or damp towels: These can help lower your dog’s body temperature.

  
  

What to Do If Your Dog Has Heat Stroke

If you suspect your dog has heat stroke, act fast:

1. Move your dog to a cooler place immediately, preferably indoors or in the shade.

2. Offer small amounts of cool water to drink, but don’t force it.

3. Cool your dog down gradually: Use cool (not cold) water to wet their body, especially the belly, paws, and head. Avoid ice-cold water as it can cause shock.

4. Use a fan to help with evaporation and cooling.

5. Contact your vet immediately: Heat stroke can cause internal damage that requires professional treatment.

   
   

If your dog collapses or loses consciousness, seek emergency veterinary care without delay.

Dog drinking water in shaded garden during hot day

Long-Term Care After Heat Stroke

Recovery from heat stroke can take days or weeks. Follow your vet’s advice carefully. Watch for ongoing symptoms like lethargy, vomiting, or breathing difficulties. Keep your dog cool and hydrated during recovery.

Simple prevention: keep dogs cool at home

A few practical changes can make a big difference.

• Shade and ventilation: Make sure your dog has access to shade all day and a cool indoor option if possible.

• Cool surfaces: Let them rest on tiles. A cooling mat can help.

• Fresh water everywhere: Put down more than one water bowl.

• A shallow splash pool: A small kiddie pool or tub can be a great way for dogs to cool their paws and belly.

• Frozen enrichment: Freeze a Kong with dog-safe food, or offer ice cubes made from diluted bone broth (if suitable).

• Walk early or late: Stick to early mornings or evenings, and test the ground with your hand. If it is too hot for your palm, it is too hot for paws.

  
  

Dog resting on cooling mat indoors during heat wave

Dogs at higher risk

Extra caution is needed for:

• Flat-faced breeds (brachycephalic)

• Puppies and senior dogs

• Overweight dogs

• Dogs with heart or airway conditions

• Dark-coated dogs

• Dogs that are very excited or anxious (they overheat faster)

  
  

Quick checklist: when to call the vet

Call your vet for advice if symptoms do not settle quickly after cooling, or if you are unsure.

Go straight to emergency care if there is collapse, vomiting, diarrhoea, seizures, or breathing distress.

At Hackett Hounds, every dog is monitored closely throughout the day. Activity levels, rest periods, and outdoor time are adjusted based on what we observe in each individual dog. Fresh water is always available, and dogs have access to shade and cool resting areas. On warmer days we also spray down outdoor areas and, where appropriate, lightly hose the dogs to help them cool off. Our team is experienced in recognising the early signs of heat stress, ensuring we can intervene early and keep the dogs in our care safe and comfortable.

⚠️ This blog is general guidance and does not replace veterinary care. If you suspect heatstroke, treat it as urgent.