Not every dog needs a coat, but some dogs benefit from extra protection in cold, wet or windy weather. The right choice depends on the individual dog, not just the temperature outside.
Age, breed, coat type, body condition, health, activity and how long the dog will be outdoors all matter. A short walk for a healthy double-coated dog is very different from a slow winter outing for an elderly, underweight or fine-coated dog.
Which dogs are more likely to need a coat?
PDSA advises that many dogs cope well with short periods in cold weather, while dogs with fine or thin coats, very young dogs, older dogs, underweight dogs and some unwell dogs may feel the cold more quickly.
Sighthounds such as Greyhounds and Whippets are common examples of dogs that may benefit from extra warmth because of their lean build and short coat.
Browse our Dog Coats & Outdoor collection for the current range.
Waterproof coat or fleece?
A waterproof dog coat is useful when the main problem is rain, wind and wet weather. A fleece coat or jumper is more about warmth and comfort in cool, dry or lightly damp conditions.
If your dog needs both warmth and rain protection, a lined waterproof coat may be more practical than layering multiple garments.
See Waterproof Dog Coats and Fleece Dog Coats & Jumpers to compare options.
What does 0g, 150g or 250g mean?
On insulated dog coats, the gram figure generally refers to the amount of thermal fill. A 0g coat has no insulating fill and is primarily for weather protection. Higher fill weights provide more warmth.
More insulation is not automatically better. A dog walking briskly can warm up quickly, while a dog moving slowly or waiting around outdoors may need more protection.
Fit comes first
A coat should allow normal walking, sitting, toileting and shoulder movement. It should not pull across the chest, rub behind the front legs or press around the neck.
Measure according to the manufacturer's size guide rather than relying only on breed. Dogs of the same breed can have very different chest depth and back length.
Wide-fit coats and jumpers
Broader dogs may need more room through the chest and body than a standard cut provides. A wide-fit design can reduce pulling and make movement more comfortable.
Our Wide Fit Dog Clothing collection is designed for dogs that need extra room through the body.
Watch for overheating
Dogs can become too warm in clothing, especially when exercising. Check how your dog is coping and remove the coat if they are panting excessively, slowing down unexpectedly or appear uncomfortable.
Wet coats should also be removed after the walk rather than left on indoors.
Introduce a coat gradually
Some dogs accept clothing immediately; others need time. Let the dog investigate the coat, put it on briefly indoors and reward calm behaviour. Avoid forcing a frightened dog into clothing.
Senior dogs and dogs with health conditions
Older dogs may move more slowly and have less muscle mass, which can make them feel cold sooner. Dogs with medical conditions can also have different needs. If your dog is unwell or has mobility problems, ask your vet whether a coat would be helpful.
Cold-weather walks still matter
PDSA recommends keeping dogs active during colder weather, with sensible adjustments for the individual dog and conditions. Shorter walks, dry routes and suitable clothing can help some dogs stay comfortable without losing their normal exercise routine.
Frequently Asked Questions
Does my dog need a coat in winter?
Many dogs do not need one for short periods, but fine-coated, very young, elderly, underweight or unwell dogs may benefit from extra warmth.
Should a dog coat cover the whole body?
It should provide useful coverage without restricting movement or toileting. Fit and comfort matter more than maximum coverage.
Is fleece waterproof?
Most fleece garments are designed primarily for warmth rather than full waterproof protection. Check the individual product description for water resistance.
How do I know if my dog is too hot?
Watch for excessive panting, slowing down, restlessness or obvious discomfort. Remove the coat and allow the dog to cool if needed.
Further reading
Read PDSA's guidance on whether dogs need coats on winter walks and its cold-weather exercise tips.
This article is general dog-care information and does not replace veterinary advice.