How to Keep Dogs Safe and Cool in Hot Weather

Vet verified. Written by Dr. Linda Simon MVB MRCVS, Team Vet. Reviewed by Elle Padgham, Communications Lead.

Dogs stay safer in hot weather when activity is moved to cooler hours, shade and water are always available, and owners act at the first sign of overheating. Dogs rely mainly on panting rather than whole-body sweating. Heat, humidity, direct sun, exercise and poor airflow can overwhelm that cooling system faster than many people expect.

Flat-faced dogs, puppies, seniors, overweight dogs and dogs with heart, airway or kidney disease need extra caution, but any dog can develop heatstroke. Use the actual conditions, surface temperature, humidity and the individual dog's response, not the calendar or a single temperature number.

1. Walk during the coolest safe hours

Choose early morning whenever possible, before pavement and surrounding buildings have stored the day's heat. Late evening can also work after air and surfaces have cooled, but some sidewalks remain hot long after sunset. Check the forecast for temperature, humidity, air-quality alerts and storms before leaving.

Shorten the route, slow the pace and favor shade. Sniffing and gentle exploration can provide enrichment without sustained running. Bring water and turn back while the dog is still comfortable. Lagging, seeking shade, intense panting, repeated stopping or refusing to continue are reasons to end the walk.

2. Check pavement and choose cooler surfaces

Asphalt, concrete, artificial turf, sand, metal ramps and truck beds can become much hotter than the air. Whenever practical, touch the surface with the back of your hand and choose shaded grass or another cooler route if it feels uncomfortably hot. This informal check does not guarantee safety, because paw tolerance and surface temperatures vary.

Inspect paw pads after walks for redness, tenderness, blisters, peeling, limping or repeated licking. Move the dog onto a cool clean surface and contact the veterinarian for a suspected burn. Do not apply human burn creams or tightly wrap paws without veterinary instructions.

3. Provide shade and an indoor escape

A patio umbrella, canopy or mature tree can create shade, but it must remain available as the sun moves. The safest backyard setup also lets the dog enter an air-conditioned or well-ventilated indoor space. Sunrooms, enclosed porches, garages, sheds and glassed-in areas can trap heat like a vehicle.

Do not tether a dog where the lead can wrap around furniture and prevent access to water or shade. Supervise dogs that keep sunbathing despite heavy panting. A cooling mat can add comfort when used according to its instructions, but it cannot make prolonged heat exposure safe.

4. Keep fresh water easy to reach

Set out more than one clean bowl at home so a tipped bowl does not remove the only water source. Carry a dedicated bottle and collapsible bowl on walks and trips. Offer small drink breaks rather than waiting until the dog is frantic with thirst.

Do not force water into the mouth of a weak, vomiting, confused or collapsed dog because it may be inhaled. Ice cubes may be an occasional supervised enrichment item for a dog that is already comfortable, but they are not heatstroke treatment. Suspected heatstroke needs cooling guidance and immediate veterinary care.

5. Adjust play, beach time and swimming

Repeated fetch encourages intense sprinting even after a dog would otherwise stop. Use a few short repetitions, add rest in shade and end before panting becomes heavy. At the beach, prevent repeated sand ingestion from sandy balls or toys. Large amounts of swallowed sand can obstruct the gastrointestinal tract.

Swimming is exercise, not automatic cooling. Dogs can tire, inhale water, encounter currents or develop water intoxication after excessive water consumption. Use a well-fitted canine life jacket where appropriate, provide frequent land breaks and rinse salt or pool chemicals from the coat. Never force a dog into water.

6. Use frozen food safely

Part of a dog's measured complete meal can be frozen in a food toy or spread on a suitable lick mat to provide slower enrichment indoors. Use the dog's normal food or a veterinarian-approved recipe, supervise the item and account for every calorie. Choose a toy that cannot be swallowed or chewed into pieces.

Plain dog-safe fruits or vegetables may be occasional treats when suitable for the individual dog, but avoid grapes, raisins, xylitol-sweetened products, chocolate, macadamia nuts, onion, garlic and alcohol. Frozen treats do not lower a dangerously high body temperature enough to treat heatstroke. Our frozen dog-treat guide includes measured options and safety notes.

7. Keep the vehicle safe while traveling

Precool the cabin, secure the dog with an appropriate restraint and ensure airflow reaches the dog's position. Never transport a dog in an open truck bed, closed cargo area or unventilated trailer. Schedule breaks in safe shade and keep the dog leashed near traffic.

Never leave the dog unattended in a parked vehicle in warm weather, even with windows cracked, in shade or with remote climate controls. Vehicle temperature can rise rapidly and systems can fail. Read our full dogs and hot cars guide before summer travel.

8. Groom for coat health, not a complete shave

Regular brushing can remove loose undercoat and mats that interfere with normal airflow through the coat. Some dogs benefit from a professional trim, but shaving a double coat to the skin can expose the dog to sunburn and may not improve normal temperature regulation. Ask a veterinarian or experienced groomer what is appropriate for the breed, coat and medical needs.

Keep skin dry in folds and beneath dense fur, and inspect for redness, hot spots, parasites and sun damage. Hairless dogs, dogs with thin or white coats and dogs with lightly pigmented noses or ears may need veterinarian-approved sun protection. Our dog sunburn guide explains safer shade and product choices.

9. Plan around the dog's individual risk

Flat-faced dogs may overheat with relatively little exercise because shortened airways reduce efficient heat exchange. Obesity adds insulation and can increase breathing effort. Puppies and seniors regulate temperature less reliably, while heart, respiratory, kidney, neurologic and endocrine disease can change tolerance.

Ask the veterinary team for a personalized summer plan if the dog has a medical condition, takes medication that changes hydration or temperature regulation, or has previously experienced heat illness. Do not use another dog's safe walk duration as a target. Humidity, acclimatization, fitness and excitement make comparisons unreliable.

10. Know the signs of heatstroke and act fast

The American Animal Hospital Association describes heatstroke as a medical emergency. Warning signs include heavy panting, thick ropey drool, rapid or irregular heartbeat, weakness, poor coordination, confusion, vomiting or diarrhea, bright red or pale gums, collapse and seizures.

If heatstroke is suspected, move the dog to shade or air conditioning and call a veterinary hospital immediately. Begin traveling as directed. Wet the body with tepid water, especially the neck, chest and abdomen, and add airflow with a fan or vehicle air conditioning. Offer small amounts of cool water only if the dog is alert and able to swallow.

Do not use ice water or an ice bath, and do not wrap the dog in wet towels because fabric can trap heat and slow evaporation. If the veterinary team has you monitor rectal temperature, AAHA recommends stopping active cooling around 103°F. A dog can develop internal injury after appearing to recover, so veterinary assessment remains essential.

Early warning signs

• panting harder or faster than expected for the activity;
• seeking shade, slowing down or refusing to move;
• wide tongue, thick drool or very red gums;
• restlessness, repeated lying down or poor focus.

Emergency signs

• weakness, stumbling, confusion or collapse;
• vomiting, diarrhea or blood;
• pale or bluish gums;
• tremors, seizures or loss of consciousness;
• breathing that remains labored or a hot dog that stops panting.

A practical hot-weather go or no-go check

1. Check temperature, humidity, air quality and surface heat.
2. Consider the dog's breed, age, weight, health and previous heat tolerance.
3. Confirm shade, water, cooling and a quick route home are available.
4. Choose a shorter, lower-intensity alternative when any factor is uncertain.
5. Stay home if the dog cannot be kept comfortable from the start to the end of the activity.

Hot weather is not a test of toughness. Indoor scent games, gentle training and food puzzles can replace a walk when conditions are unsafe. Review our guide to deciding when it is too hot to walk and yard safety checklist.

Frequently asked questions

What temperature is too hot to walk a dog?

There is no universal cutoff. Humidity, sun, pavement, exercise intensity and individual risk all matter. If the dog pants heavily, slows, seeks shade or the surface is uncomfortable, stop and move to a cooler area.

Should I shave my dog in summer?

Not automatically. Brushing and an appropriate trim may help some coats, but shaving a double coat can increase sun exposure and may not improve cooling. Ask a veterinarian or groomer familiar with the coat.

Can dogs have ice cubes in hot weather?

A comfortable, alert dog may have a small supervised ice cube, but ice is not treatment for heatstroke. A weak or confused dog may not swallow safely and needs emergency veterinary care.

How do I cool an overheated dog?

Move the dog to a cool area, call a veterinary hospital, use tepid water on the body with airflow and travel for urgent care as directed. Avoid ice water and wet-towel wrapping.

This article is educational and is not a substitute for emergency veterinary care.