Choose cooler times and surfaces
Walk during cooler parts of the day when possible and favor shaded routes. Pavement can become uncomfortable in direct sun. If conditions feel too hot, shorten the outing and find a cooler way to offer enrichment indoors.
Bring water and watch the dog
Offer water and breaks, especially on longer outings. Dogs vary in heat tolerance; age, health, coat, and activity affect risk. Heavy panting, weakness, confusion, vomiting, or collapse can be urgent: move the dog to a cooler place and contact a veterinarian or emergency clinic immediately. Never leave a dog alone in a parked car.
Make the plan flexible
Before leaving, check the day’s conditions and decide what would make you turn back early: a route with no shade, a rising temperature, or a dog who is slowing down. Keep the walk close enough to home or the car that you can shorten it without rushing. On very warm days, move exercise to cooler hours or replace the outing with a quiet indoor sniff game. A familiar route is useful because you can change direction or head back easily.
Do not use a single temperature as a guarantee that a walk is safe. Humidity, sun, pavement, the dog’s age and health, and the effort required all matter. If you are unsure, ask your veterinarian about an exercise plan for your dog.
Recognize when to stop
Stop exercise if the dog is panting heavily, seems weak or unsteady, is unusually restless, drools excessively, vomits, or behaves unlike themselves. Move to a cooler place and contact a veterinarian or emergency clinic promptly if you suspect heat illness; do not wait to see whether serious signs pass. Follow veterinary directions for cooling and transport.
Never leave a dog in a parked car, even briefly or with windows open. Cars can become dangerously hot quickly. Keep a water bowl available at home and check that outdoor rest areas have shade. On warm days, a shorter walk with time to sniff is a safer plan than trying to maintain the usual distance.