Do Dogs Need Coats? A Cold-Weather Guide

Every winter I get the same question from friends with new dogs: does my dog actually need a coat, or am I just being soft? It's a fair thing to ask. Walk through any park on a frosty morning and you'll see everything from bare Labradors happily crashing through puddles to shivering little whippets in quilted jackets — and both owners are probably doing right by their dog.

So let's clear it up. Some dogs genuinely need a coat to be comfortable and safe once the weather turns cold. Plenty of others don't, and a few are better off without one entirely. The trick is knowing which camp your dog falls into.

This post answers the big question — do dogs need coats? — and helps you decide what's right for yours: the breeds that feel the cold, the temperatures that matter, and how to get the fit right.

Do Dogs Really Need Coats?

It depends entirely on the dog. A coat isn't a fashion call or a soft-owner thing — it's about whether your dog can hold its own body heat in cold, wet weather, and some simply can't.

A husky bred for Siberian winters and a whippet with a whisper of fur and almost no body fat are living in completely different worlds on the same frosty walk. One is in its element; the other is genuinely struggling. Your job is just to work out where your own dog sits on that scale, and the rest of this guide walks you through exactly how.

What Temperature Is Too Cold for a Dog?

There's no single magic number, but here's the rough rule of thumb I go by. Above about 7°C (45°F), most healthy dogs with a normal coat are perfectly fine as they are. Once it drops to around 5°C (40°F), the more vulnerable dogs — small ones, thin-coated ones, the very young and the very old — start to feel it and a coat is worth considering. Below freezing (0°C / 32°F), any dog that isn't built for the cold really shouldn't be out for long without protection, as that's where the risk of hypothermia creeps in.

Wind and rain change everything, though. A dry, still day at 4°C (39°F) is one thing; that same temperature with driving rain and a sharp wind cuts far deeper, and a soaked dog loses heat fast. On days like that I'd err towards the coat even for a dog that copes fine in dry cold.

Which Dogs Need a Coat?

Some dogs are simply built to feel the cold, and they're the ones a coat helps most. Small breeds lose heat quickly because there's more surface area relative to their body. Short or single-coated dogs — greyhounds, whippets, chihuahuas, dachshunds, staffies — don't have the insulating undercoat that gets other breeds through winter. Lean dogs with little body fat, sighthounds especially, have almost nothing to trap warmth.

Age matters too. Puppies haven't yet learned to regulate their temperature well, and older dogs often lose that knack, particularly if they've got arthritis that cold weather makes ache. And any dog that's unwell, underweight, or recovering from illness will struggle more than a fit adult in its prime.

If your dog ticks one of those boxes and you're heading into a cold, damp winter, a coat isn't pampering — it's just sensible.

Which Dogs Don't Need a Coat?

Here's the flip side, and it's the bit people forget. Double-coated breeds built for cold climates — huskies, malamutes, Samoyeds, German shepherds, and plenty of the fluffier spitz types — come with their own high-spec insulation. Put a coat on one of those and you risk making it too hot, flattening the undercoat that's actually doing the work, or leaving it damp underneath.

A healthy, well-covered adult with a thick coat pottering about on a mild winter day doesn't need anything from us. When in doubt, watch the dog rather than the thermometer — a comfortable dog will tell you it's comfortable.

How Do I Know If My Dog Is Cold?

Dogs can't say "I'm freezing," but they show it plainly once you know what to look for. The obvious one is shivering, but there are subtler tells long before that: a sudden reluctance to leave the house, slowing right down or planting themselves partway round the walk, holding their tail tucked and body hunched, or lifting their paws off the icy pavement one at a time.

Some dogs will whine or start looking back towards home; others just go quiet and miserable. Learning to read these small signals is honestly half of good dog ownership — if you'd like to get better at it, our guide on how to read a dog's body language goes much deeper. Spot the early signs and you can pop a coat on before your dog has a rotten time, not after.

Types of Dog Coats

Once you've decided your dog would benefit, the next question is which kind, and it really comes down to your weather. A proper winter coat is padded or fleece-lined for warmth and is what you want for genuinely cold days. A waterproof coat or raincoat is arguably the most useful thing you can own if you get a lot of wet weather — it keeps the rain off so your dog stays warm and you're not toweling down a soggy dog every afternoon. A lightweight jacket suits mild, breezy spring and autumn days when full padding would be overkill. And a hi-vis or reflective coat is worth having for dark winter mornings and evenings, especially on country lanes, so drivers and cyclists spot your dog in good time.

Plenty of coats combine these — a padded, waterproof coat with a reflective trim covers most British weather in one go.

How Should a Dog Coat Fit?

A coat only works if it fits, and a badly fitted one can rub or slip and put your dog off wearing it for good. You want snug but not tight — able to slide a couple of fingers underneath, with nothing digging in at the neck, chest, or armpits, and full movement in the shoulders and legs.

Before you buy, measure three things: your dog's back length from the base of the neck to the base of the tail, the chest at its widest point just behind the front legs, and the neck. Check those against the maker's size chart rather than guessing from breed, since two dogs of the same breed can be quite different shapes. And whatever you pick, make sure it doesn't drag on the ground or ride up when your dog moves — adjustable straps and decent fastenings make all the difference to keeping it comfortably in place.

A Few Honest Cautions

A coat is a tool, not a default. Don't overdress a double-coated breed just because it's cold — you can do more harm than good. Keep an eye out for the opposite problem too: a dog that's panting, trying to wriggle out of its coat, or looking uncomfortable is overheating and needs it off. Take coats off indoors so your dog can cool down and the fabric doesn't trap damp against the skin. And never leave a wet coat on — a soaked coat chills a dog faster than no coat at all.

Get those basics right and a coat does exactly what it should: makes cold, wet walks something your dog is happy to head out for.

Get Closer to Your Dog with PawPaw

Whether your dog loves the cold or dreads it, it's telling you all winter long — in the way it moves, hesitates at the door, or bounds happily into the frost. The better you read those signals, the easier calls like this one become.

With PawPaw, you can upload a video of your dog and get a sense of what their behavior might be telling you. The app turns everyday dog moments into fun talking-dog videos while helping you understand your companion a little better.

Because the more you understand your dog, the stronger your bond becomes. Join the waitlist and be first to try it. 🐾