Should you put a coat on your dog in winter?

A winter coat is useful for certain dogs, especially short or thin-coated breeds, very small dogs, puppies, senior dogs, and those not used to going out in the cold, but it remains unnecessary, even counterproductive, for a long, dense-coated dog well suited to the climate. The need mostly depends on the dog's breed, age and health, rather than on a single rule for everyone.

1. Not every dog has the same need for protection

A dog's fur acts as a natural insulator, but this role varies enormously between breeds. A dog from cold regions, with a dense undercoat (Husky, Malamute, Shepherd), generally copes very well with cold weather without a coat. Conversely, a dog with a thin or short coat (Chihuahua, Greyhound, French Bulldog, Doberman) has much less natural protection and feels the cold faster, even on a short walk.

2. The dog profiles that benefit most from a coat

• Very small dogs, whose bodies lose heat faster due to their small size and low muscle mass.
• Short or thin-coated breeds, which lack an insulating undercoat.
• Puppies, whose temperature regulation is not yet fully mature.
• Senior dogs, often more sensitive to cold, especially with joint pain that can worsen in cold, damp weather.
• Dogs that go out little in winter and have not had time to gradually acclimate to low temperatures.

3. When a coat is not necessary

A long, dense-coated dog, well acclimated, healthy and used to winter walks generally does not need a coat, and adding one can even interfere with its coat's natural thermoregulation or create unnecessary discomfort. In this case, it is better to watch the dog's behaviour: if it stays active, curious and does not try to head back quickly, the cold is probably not bothering it much.

4. How to tell if a dog is cold

• It shivers or starts trembling during the walk.
• It lifts one paw after another or walks hesitantly on cold or frozen ground.
• It tries to head back quickly or huddles against you.
• It seems less lively than usual within the first few minutes of the walk.

These signs, especially if they appear quickly and in genuinely cold weather, are good indicators that a coat or a shorter walk would help.

5. Coat, puffer jacket or raincoat: what is the difference?

• A puffer jacket, like a lightweight padded jacket, provides thermal insulation for dry cold.
• A fleece-lined coat, such as a fleece-lined coat, works well for walks in cold but dry weather.
• A raincoat, like a hooded rain coat, mainly protects from moisture, useful even in mild but rainy weather, without necessarily providing much thermal insulation.
• A coat with a built-in harness, such as the coat with integrated harness, simplifies dressing before a rushed walk.

Browse all the models in the coats and jackets and raincoats collections.

6. Choosing the right size, getting the dog used to it, and protecting its paws

A poorly fitted coat can chafe at the armpits or restrict movement rather than protect effectively. Check the back length (from neck to tail base) and the chest girth before ordering, referring to the size chart on the product page. To get a dog used to wearing a coat for the first time, start with short periods indoors before the first outing, pairing the dressing with a treat, much as you would when getting a dog used to wearing a harness.

A coat protects the body, but the paw pads remain exposed to cold, de-icing salt and ice. After every winter walk, remember to rinse and dry your dog's paws, especially if it has walked on salted ground, to prevent irritation between the pads.

7. Common myths, and a case-by-case decision

A few ideas come up often and deserve some nuance:

• "A dog never needs a coat, it has fur." True for many hardy breeds, but false for short-coated breeds or very small dogs, whose fur offers only limited protection.
• "The warmer the coat, the better." A coat that is too heavy on a dog that is exercising can actually cause overheating mid-walk; it is better to match thickness to the planned activity and the actual temperature.
• "A coat replaces gradual acclimation." A dog gradually used to cool temperatures develops better cold tolerance than one that never goes out without a coat, even though a coat remains useful in the cases already mentioned.

There is no single answer that applies to every dog: breed, age, health, length of the walk and the day's weather all come into play. Watching your own dog remains the best approach, alongside these general guidelines, to decide case by case whether a coat is useful on a given day.

Does your dog pull on the leash during winter walks? Read our article on which harness to choose for a dog that pulls on the leash.