If you suspect heatstroke, stop activity, move your dog out of the heat, start cooling with water, and contact an emergency veterinarian immediately. Begin cooling before transport, but do not wait for your dog to recover before seeking care.
Summer plans can change quickly when your dog starts struggling with the heat. Heatstroke is a medical emergency, and a dog does not have to be left in a hot car to develop it. Exercise and hot, humid surroundings can also put them at risk.
Knowing the warning signs and the first steps to take matters more than any piece of summer gear.
Signs of Heatstroke in Dogs
Dogs mainly release heat through panting, with only limited sweating through their paws. When they cannot cool themselves effectively, their body temperature can rise dangerously.
Watch for:
- Heavy panting that seems excessive for the activity.
- Unusual drooling or reluctance to keep moving.
- Noisy, difficult, or distressed breathing.
- Vomiting, diarrhea, or unusual weakness.
- Confusion, stumbling, collapse, or seizures.
Cornell University College of Veterinary Medicine explains these warning signs. Do not wait for collapse or for every symptom to appear before acting.
What to Do if Your Dog Is Overheating
The Royal Veterinary College recommends “cool first, transport second”. This means starting first aid promptly while arranging veterinary care.
- Stop activity and get out of the heat. Move your dog into shade or a cool, well-ventilated space. Do not make them finish the walk.
- Start cooling with water. Gently pour cool tap water over the body, wetting the coat through to the skin. Keep water away from the nose and mouth. Use a fan or air conditioning to help move air over the wet body.
- Call an emergency veterinarian immediately. If someone is with you, have them call while you cool your dog. Explain the symptoms and follow the clinic’s instructions.
- Transport promptly once cooling has begun. Use an air-conditioned vehicle. If possible, have another person monitor your dog and continue cooling as directed while you travel.
If your dog is alert and able to swallow normally, offer small sips of water. Never force drinking or pour water into their mouth.
Do not wrap or cover your dog in wet towels; this can trap heat and interfere with cooling. PDSA’s heatstroke first-aid guidance also emphasizes protecting the airway and getting veterinary help promptly.
Use the water available rather than delaying first aid to achieve a precise temperature. The RVC supports rapid cooling with water cooler than the dog; deliberately slow cooling can prolong overheating.
Why Your Dog Still Needs a Vet After Cooling
Less panting or brighter behavior does not prove that the danger has passed. Heat-related illness can affect internal organs, and complications may not be immediately visible.
The RVC advises a veterinary check even when a pet appears to improve, unless the veterinarian advises otherwise. Home first aid starts the response; it does not replace assessment and treatment.
Everyday Ways to Reduce Heat Risk
The ASPCA’s hot-weather guidance emphasizes fresh water, shade, avoiding overexertion, and staying indoors during extreme heat.
- Keep fresh drinking water available. Bring water and a bowl when you go out.
- Provide a cool resting place. Choose an air-conditioned room when conditions are hot. Shade alone may not provide enough relief.
- Reduce activity as conditions change. Shorten, postpone, or skip outdoor exercise when necessary.
- Never leave your dog alone in a parked car. Shade or cracked windows do not make this safe.
Flat-faced dogs, older dogs, overweight dogs, and dogs with heart or breathing conditions need extra caution. Ask your veterinarian about your dog’s individual limits.
For decisions about walking times, pavement, and changing your route, read our summer dog-walking guide. Those planning choices belong before the walk; signs of overheating call for immediate action.
Walking Gear Has a Role, but It Is Not Heat Protection
Choose a harness by its fit, coverage, and how your dog moves in it. Descriptions such as “lightweight” or “breathable” do not establish that a harness prevents overheating or keeps a dog cool all day.
The KRBOBO CUSHIONED HARNESS — Ruby Snap has a soft stretch polyester base, coated nylon webbing, and four adjustable straps. These are construction features, not cooling technology or protection against heatstroke.
For ordinary walks in suitable conditions, view the Ruby Snap harness and check its size guide. A new harness is not a reason to extend an outing when the weather or your dog’s condition calls for stopping.
Make Room for a Change of Plans
Some summer days are better suited to quiet indoor time than another loop around the block. Keep water available, plan access to a cool space, and save your veterinarian’s emergency contact details before you need them.
If overheating occurs, act promptly: begin cooling, call for veterinary help, and arrange transport. The priority is getting your dog the care they need, even if they seem better along the way.