Why is my puppy shivering?

The ordinary reasons

Cold is the most straightforward cause. Puppies have less body fat and a higher surface-area-to-body-weight ratio than adult dogs, so they cool down faster, especially short-coated and small breeds. A shivering puppy that has just come in from a cold garden or a chilly car journey is very likely just cold.

Excitement and fear both produce shivering too, and it can be hard to tell them apart from the outside. A puppy shaking with its tail wagging hard before a walk is excited; one shaking with its tail tucked and ears back in a new or busy environment is frightened. Both settle on their own once the trigger passes.

A new home in the first few days is a common trigger for both fear and general overwhelm, since everything is unfamiliar at once — new smells, new sounds, separation from littermates. Some settling-in shivering in the first week or so at home is genuinely normal.

When it is worth getting looked at

Ring your vet if the shivering is constant rather than tied to an obvious trigger, if it comes with vomiting, diarrhoea, lethargy or a puppy who will not eat, or if your puppy feels unusually cold to the touch or seems weak on their legs. Low blood sugar is a genuine risk in very young or very small-breed puppies and can show up as shivering alongside weakness.

Shivering after a vaccination, or that starts alongside a fever, is also worth mentioning to your vet rather than waiting it out, even if the puppy otherwise seems bright. It is far easier for a vet to rule something out early than to catch up on a problem that has been left a few days.

Keeping a young puppy warm

A warm, draught-free sleeping area away from direct cold floors makes a real difference for small and short-coated breeds especially. A well-fitted coat for walks in cold or wet weather helps a puppy who shivers on every outing, rather than pushing through it and hoping they get used to it.

Towel-drying thoroughly after a bath or a wet walk matters more for puppies than it might seem, since a damp coat loses heat fast. If your puppy shivers reliably after every bath, drying them fully before they settle anywhere draughty usually solves it without needing anything else.

A raised bed off a cold floor, or extra bedding in a crate positioned away from a draughty door or window, both help without needing to overheat the room generally. Some short-coated breeds and very young puppies genuinely need more warmth than an owner might expect from looking at the room temperature alone.

Settling a nervous or overwhelmed puppy

If the shivering is clearly fear rather than cold — tail tucked, trying to hide, avoiding eye contact — the fix is not more blankets but a calmer environment. A quiet space away from loud noise, visitors or other pets gives an overwhelmed puppy somewhere to decompress rather than being expected to cope in the middle of everything.

Building confidence gradually, rather than forcing exposure to whatever is frightening them, tends to work better long term. A puppy that shivers at every visitor, for instance, usually settles faster with calm, low-key introductions over repeated short visits than with one busy gathering meant to get it over with.

Some puppies are simply more sensitive than others, in the same way some people are more anxious than others, and that is not something to fix so much as to manage patiently. If nervous shivering is frequent, severe, or getting worse rather than better as your puppy settles in, that pattern is worth raising with your vet.

What can help

Things we stock that owners commonly use alongside a vet’s advice — not a substitute for it.

Dog Calming Ear Muffs For Fireworks & Thunder

A soft stretchy snood that wraps snugly over your dog's head and ears to muffle fireworks, thunder and loud noises. Helps nervous dogs feel calmer during storms, travel and grooming.

£11.99

Hooded Dinosaur Dog Raincoat

A waterproof hooded dog raincoat with a fun dinosaur spine and yellow fins. It features full-coverage legs, a reflective strip and a built-in D-ring for a lead, keeping smaller dogs dry and visible on wet walks.

From£29.99

Dog Sports Jacket For Medium & Large Breeds

A sleek zip-up sports jacket with full leg sleeves and reflective trim, designed to keep medium and large dogs warm and dry on cold-weather walks. Easy-fit and snug at the cuffs.

From£24.99

Waterproof Pet Furniture Protector Blanket

A quilted waterproof throw that shields beds and sofas from hair, mud and accidents.

From£11.99

Common questions

Is it normal for a new puppy to shiver on the first night home?

Yes, this is common and usually settles within a few days as the puppy adjusts to a new environment away from littermates. A warm, quiet, draught-free sleeping space helps, and most puppies stop shivering from settling-in stress on their own once they feel secure.

Can puppies shiver from being excited rather than scared or cold?

Yes, excitement shivering is genuinely common, particularly around mealtimes, play or before a walk. It usually comes with a wagging tail and generally happy body language, which is the easiest way to tell it apart from shivering caused by fear or cold.

Why is my puppy shivering after a vaccination?

A mild reaction, including some shivering, can happen after a vaccination and is usually short-lived. If it is severe, lasts more than a day, or comes with vomiting, swelling or lethargy, contact your vet rather than assuming it will pass on its own.

How cold does it have to be for a puppy to shiver?

It varies a lot by breed size and coat type — a small, short-coated puppy can start shivering in conditions a larger, thicker-coated dog would barely notice. If your puppy regularly shivers on walks, a properly fitted coat is worth trying before assuming something else is wrong.