Should Dogs Wear Jackets or Raincoats in Winter? A Vet-Backed Guide by Breed and Coat Type

Dogs differ in how well they tolerate cold weather. Size, coat thickness, age, health, and conditions outdoors all matter. The real answer to "does my dog need a coat?" isn't a blanket yes or no — it depends on size, coat thickness, and age, and there are concrete veterinary guidelines to decide it, not guesswork.

Related read: The Ultimate Winter Paw Care Guide: Protecting Your Dog from Snow, Ice, and Salt.

Should dogs wear jackets in winter?

It depends on the dog, not a blanket rule for the whole species. According to Dr. Aly Cohen, extension veterinarian at Cornell University's Riney Canine Health Center, "small-sized dogs have a harder time staying warm compared to larger breeds" and "short and thinly-coated breeds will not tolerate the cold as well as thick, double-coats, such as Siberian Huskies and Malamutes." For those vulnerable dogs, the same source is direct: "a jacket or sweater will help keep them warm in the winter."

Which breeds actually need a coat, according to Cornell?

Cornell explains that short- and thin-coated breeds tolerate cold less well than thick, double-coated breeds such as Huskies and Malamutes. Greater cold tolerance does not mean immunity to cold: clothing needs and safe exposure time depend on the individual dog and the weather. The group that does benefit, per Cornell: small dogs, short- or thin-coated breeds, puppies, seniors, and underweight dogs, because they regulate body temperature less efficiently. The University of Wisconsin School of Veterinary Medicine, citing the American Veterinary Medical Association (AVMA), backs the same distinction: "long-haired or thick-coated pets tend to be more cold-tolerant than short-haired and short-legged pets," recommending coats specifically "for short-haired dogs, really slender dogs and elderly dogs."

Do vets recommend dog coats?

Yes, for the at-risk group, and consistently across veterinary schools. Cornell recommends it explicitly for small and thin-coated dogs. Purdue University goes a step further: "smaller dogs would benefit from using a sweater or coat when going outside to help retain body heat" (Dr. Suma Rao and Dr. Lorraine Corriveau, Purdue University College of Veterinary Medicine). These recommendations support using coats for dogs that need extra warmth; they are not a blanket recommendation for every dog.

At what temperature is too cold for a dog?

Cornell offers a practical, easy rule: "if it is too cold for you, it is likely too cold for your dog." Purdue fills in the specific number that general rule is missing: "veterinary experts agree that you should bring outdoor pets indoors if the temperature drops below 20 degrees Fahrenheit," and "puppies, kittens, and short-haired pets should come inside anytime the temperature goes below 40 degrees." These are recommendations for bringing pets indoors, not temperature thresholds for choosing a jacket. A coat does not replace warm shelter or justify prolonged exposure to cold.

Why do some people say dogs shouldn't wear clothes?

Coat needs vary between dogs. Cornell and Wisconsin describe greater cold tolerance in dogs with thick coats, while recommending extra protection for more vulnerable dogs. Choose clothing according to your dog’s needs and the weather, and watch their behavior. If your dog shivers, lifts their paws, or becomes reluctant to walk, move them to a warm, dry place.

How Do I Choose Between a Jacket, Sweater, and Raincoat?

1. Rain without extreme cold: prioritize waterproofing over insulation. The reversible Elasto-Fit raincoat handles this without leaving your dog sweating underneath.
2. Dry cold, short walks: a sweater is enough for small or thin-coated dogs on brief outings or in chilly indoor spaces — the Alpine turtleneck sweater covers that use case without the bulk of a jacket.
3. Cold + wind + possible snow: that's where a quilted jacket wins — the reversible Chalet jacket adds the real insulation layer that neither the raincoat nor the sweater provides alone.

What's the Best Dog Raincoat for Winter Walks?

A dedicated raincoat prioritizes waterproofing over insulation: look for sealed or taped seams, a snug fit that doesn't restrict shoulder movement, and belly coverage long enough for short-legged breeds. Our reversible Elasto-Fit raincoat is built around exactly that brief — a fully waterproof shell with an adjustable fit and no bulk underneath. For rain near or below freezing, a raincoat alone won't stop heat loss; layer it with, or step up to, the insulated Chalet jacket above.

Sources & references

• Dr. Aly Cohen, extension veterinarian, Riney Canine Health Center — Cornell University College of Veterinary Medicine. Winter safety tips.
• Dr. Suma Rao and Dr. Lorraine Corriveau, Purdue University College of Veterinary Medicine. Purdue veterinarians give winter weather tips for pet owners.
• University of Wisconsin School of Veterinary Medicine, citing the American Veterinary Medical Association (AVMA). Protect your pets from winter hazards.