Dogs
Sep 19, 2025
Heat stroke in dogs is a serious and often life-threatening condition, but it’s also one of the most preventable. Dogs can quickly overheat, especially in places like Dubai, where high temperatures and humidity are common for much of the year. This makes them much more vulnerable during warm days, even with short periods of exercise or time spent in the sun.
The good news is, with a bit of awareness and the right action, most cases of heat stroke can be avoided. Understanding the signs, acting quickly in an emergency, and making smart choices during warm weather can save your dog’s life.
In this guide, we’ll explain what heat stroke is, how to recognise it early, what to do if it happens, and how to prevent it altogether.
What is Heat Stroke in Dogs
Heat stroke in dogs, also called hyperthermia, happens when a dog’s body temperature rises to a dangerous level and they can’t cool down on their own. A normal body temperature for a dog is around 38.3°C to 39.2°C. When it goes above 40°C, the body starts to overheat. At this point, the body’s internal systems stop working properly, and this can quickly lead to serious health problems or even death if not treated immediately.
Dogs are more prone to heat stroke than people because they have a very limited way of cooling down. They don’t sweat like we do. Instead, they release heat mainly through panting and a small amount through their paw pads. On hot or humid days, or when there's no proper shade or airflow, these cooling methods aren't enough.
Heat stroke is a true medical emergency. If left untreated, it can lead to shock, organ failure, or death within minutes. High body temperatures can cause lasting damage to the brain, kidneys, heart, and digestive system. Acting fast can be the difference between life and death, so it’s important to recognise the signs early and get help straight away.
Causes of Heat Stroke in Dogs
There are several factors that can lead to heat stroke in dogs, and understanding them can help you prevent it before it becomes a serious issue. Below are the most common causes every dog owner should be aware of.
Environmental Triggers
High temperatures, strong sunlight, and poor ventilation can all create dangerous conditions. Leaving a dog in a parked car, even for a few minutes, is extremely risky. Temperatures inside a car can rise very quickly, even with the windows slightly open. Dogs can also overheat in small, enclosed areas like sheds, garages, or rooms without proper airflow. On hot days, even being outside without shade or access to fresh water can lead to heat stroke.
Activity-Related Causes
Dogs that are exercised too hard in hot or humid weather can become overheated quickly. Running, playing, or walking during the warmest parts of the day puts extra strain on their body, especially if they don’t get regular breaks or water. Some owners may not realise how quickly a dog can go from active to overheated, especially in summer. Dogs are often eager to please, and they may continue running or playing even when they’re already too hot.
Breed and Health Risk Factors
Flat-faced (brachycephalic) breeds like Bulldogs, Boxers, and Pugs have narrow airways, which makes it harder for them to cool down through panting. Dogs with thick coats or darker fur absorb more heat. Puppies, senior dogs, and those with health issues, especially heart or breathing problems are more at risk because their bodies can’t regulate temperature as well. Overweight dogs also struggle more in the heat and are at a higher risk of overheating.
Signs and Symptoms of Heat Stroke in Dogs
Recognising the signs of heat stroke early can make all the difference. Symptoms can range from mild to severe, and they may develop quickly, especially in hot weather. If you notice any of the signs below, it's important to act fast and begin cooling your dog while contacting your vet.
Mild to Moderate Symptoms
These are the early warning signs that your dog may be overheating. Catching them early gives your dog the best chance of a full recovery.
Excessive panting – Fast, heavy panting is the body’s main way of trying to cool down.
Drooling (thick, sticky saliva) – Increased and sticky drool is a sign of rising body temperature.
Lethargy or weakness – Your dog may appear tired, slow to move, or uninterested in usual activities.
Vomiting or diarrhoea – Digestive upset, especially when paired with other symptoms, can be an early sign of heat stress.
Red gums and tongue – Bright red or dark pink gums and tongue may indicate overheating and poor circulation.
Severe and Life-Threatening Symptoms
These symptoms suggest that heat stroke has progressed to a critical stage and requires immediate veterinary attention.
Disorientation or confusion – Your dog may seem dizzy, unsteady, or unaware of their surroundings.
Seizures or muscle tremors – Shaking, twitching, or full-body seizures can occur due to overheating affecting the nervous system.
Collapse or unconsciousness – Fainting or being unresponsive is a medical emergency.
Rapid heart rate – A racing heartbeat is the body’s response to stress and high internal temperature.
Bloody diarrhoea or vomiting – This is a sign of severe internal damage and requires urgent veterinary care.
If your dog shows any of these symptoms, even the mild ones, it’s safest to begin cooling them down straight away and contact your vet for advice.
What To Do if You Suspect Heat Stroke
If you think your dog is showing signs of heat stroke, it’s important to act quickly. The faster you begin cooling them down, the better their chances of recovery. Always treat it as a medical emergency and contact your vet as soon as possible, even if your dog starts to look better. Below are steps you can take straight away.
Immediate First Aid at Home
Move your dog out of the heat – Get them into a shaded, cool, or air-conditioned area as soon as possible.
Stop all activity – Do not let your dog keep walking or playing. Keep them calm and still.
Start cooling with water – Use room temperature or slightly cool water. Pour it over their body, focusing on the neck, belly, and inner thighs. Avoid cold or ice water, which can make things worse.
Use a fan or create airflow – Increase air movement around your dog to help them cool down faster.
Offer small amounts of water to drink – Let your dog drink a little if they’re alert and able to swallow, but don’t force it.
Transportation Tips
Cool before transport – Begin cooling your dog first before heading to the vet. This helps lower the risk of further damage during travel.
Call ahead to your vet – Let them know you're coming and that it’s an emergency. They can prepare for immediate treatment.
Travel in a well-ventilated vehicle – Use air conditioning or open windows to keep the car cool.
Stay calm and keep your dog comfortable – Keep them lying on their side if they’re weak or struggling to stand.
These steps can help save your dog’s life. But remember, first aid is not a replacement for proper veterinary care. Always get professional help as soon as possible.
How to Treat Heat Stroke in Dogs
When you arrive at the vet clinic with a dog showing signs of heat stroke, treatment begins straight away. The vet will first check your dog’s body temperature and work to bring it down safely. In most cases, your dog will be placed on IV fluids. This helps replace lost fluids, treat shock, and support their organs. If your dog is struggling to breathe, oxygen therapy may also be given.
To understand how badly the body has been affected, the vet will often run blood tests. These help check how the kidneys, liver, and other organs are working. Heat stroke can quickly cause internal damage, so checking for early signs of problems is important. Depending on the severity, your dog may need to stay in the clinic for monitoring and further care.
Hospitalisation time will depend on how serious the case is. Some dogs recover within a day, while others may need several days of treatment. Survival rates are highest when treatment starts early. However, in severe cases, there may be long-term effects. Damage to the kidneys, brain, and digestive system is possible, even if the dog survives.
How to Prevent Heat Stroke in Dogs
Preventing heat stroke is much easier and safer than treating it. By making a few smart choices, especially during warmer months, you can help keep your dog cool and comfortable. Every dog is different, so it's important to know your dog’s specific needs and limits. Below are some practical ways to reduce the risk of heat stroke.
Summer Safety Tips
Walk your dog early morning or late evening – These are the coolest parts of the day. Avoid midday heat, especially on hot pavements that can burn paws.
Never leave your dog in a car – Even on mild days, the inside of a car can become dangerously hot within minutes, even with the windows slightly open.
Provide shade and fresh water at all times – If your dog is outside, make sure they have access to cool, shaded areas and plenty of clean water to drink.
Home Cooling Techniques
Cooling mats, fans, paddling pools – These are easy and effective ways to lower your dog’s body temperature on hot days.
Frozen treats and enrichment toys – Offer ice cubes, frozen carrots, or dog-safe ice blocks to keep them hydrated and entertained.
Exercise Caution
Limit playtime in the heat – Keep games and walks short and take regular breaks. Avoid running or intense exercise when it's warm.
Monitor high-risk breeds carefully – Flat-faced breeds, older dogs, puppies, and overweight pets need extra care and attention in the heat.
Travel Safety
Tips for car journeys – Always make sure the car is cool before putting your dog inside. Use air conditioning or open windows, and never leave them unattended.
Recognising signs of distress on the road – Look for signs like panting, drooling, or restlessness. If you’re concerned, stop the car, offer water, and let your dog rest in the shade.
By following these tips, you can enjoy the warmer months with your dog while keeping them safe from the dangers of heat stroke. A few simple precautions can make all the difference.
Heat Stroke vs. Heat Exhaustion in Dogs
Heat stroke and heat exhaustion are both caused by a dog becoming too hot, but they are not the same. Heat exhaustion is the earlier, milder stage and can be reversed if caught in time. Heat stroke is much more serious and can be life-threatening if not treated quickly.
With heat exhaustion, a dog may show signs like heavy panting, tiredness, drooling, and slight confusion. Their body temperature may be rising but has not yet reached a dangerous level. At this stage, cooling the dog down and giving them rest in a shaded, cool place can usually prevent the condition from getting worse.
Heat stroke, on the other hand, means the dog’s body temperature has gone too high—usually above 40°C, and their organs are starting to shut down. Signs include collapse, seizures, vomiting with blood, or unconsciousness. This is a medical emergency and needs immediate veterinary care. If left untreated, heat stroke can cause permanent damage or death.
Frequently Asked Questions
Can my dog get heat stroke indoors?
Yes, dogs can get heat stroke indoors if the space is hot, poorly ventilated, or lacks access to fresh water and airflow. This is more likely to happen in enclosed rooms, sunrooms, garages, or sheds during warm weather.
What is the ideal temperature range for dogs?
Most dogs are comfortable in temperatures between 15°C and 24°C. Once it rises above 26°C, especially with humidity, the risk of overheating increases, particularly for flat-faced, older, or overweight dogs.
Are cooling vests and bandanas effective?
Yes, they can help. Cooling vests and bandanas are designed to lower body temperature by holding moisture and releasing it slowly. They’re most effective when used along with other cooling methods, like shade and water.
How long does recovery from heat stroke take?
Recovery time varies depending on how severe the heat stroke was. Mild cases may recover in a few days, while severe cases may need several days of hospital care and close monitoring. Some dogs may suffer long-term effects.
How do I check my dog’s heart rate?
Place your hand on your dog’s chest, just behind the front leg (near the elbow). Count the beats for 15 seconds, then multiply by four. Normal heart rate ranges from 60–140 beats per minute, depending on size and breed.
