Cats are fairly hardy in the cold, but winter still brings a handful of real dangers, and one of them is among the deadliest poisons a cat can meet. Between antifreeze around cars, warm engine bays that become traps, gritted paths, and the simple need to stay warm, the cold months are worth a little thought even for an independent cat. Here is how to keep your cat safe through winter, starting with the danger that matters most.
As always, the honest note: I am a writer, not a vet, and if you suspect poisoning or your cat is unwell, call your vet straight away.
Antifreeze: the deadliest winter danger
This comes first because antifreeze is both attractive to cats and lethal in tiny amounts, and cats are especially vulnerable.
Antifreeze poisoning is the winter emergency every cat owner should know about, and because a cat can pick it up simply by grooming it off its paws, prevention and speed are everything.
The warm-engine trap
The second winter danger is a hidden one, and a simple habit prevents it.
Cats seek out warmth, and a car that has recently been driven offers a tempting, still-warm engine bay or wheel arch to curl up in. The danger is obvious and serious when the car is next started. In cold weather, get into the habit of banging on the bonnet and having a quick look underneath before you start your car, especially if you have cats, or if there are strays or neighbourhood cats about. It takes a moment and it genuinely saves lives, so it is worth doing every time through the winter.
Warmth, gritted paths, and getting home
The rest of winter cat care is about warmth and a few smaller hazards.
Make sure your cat has warm, draught-free places to sleep, off cold floors, and give outdoor and elderly cats particular care, since the old and unwell feel the cold most. Provide access to shelter, and consider keeping cats in during very cold, icy, or snowy spells, making sure a cat flap has not frozen shut and that there is a litter tray indoors. The golden rule is that your cat must always be able to get back inside to warmth, and should never be shut out in freezing weather. As with dogs, the grit and salt on winter paths can irritate paws and is harmful if groomed off, so a cat that has been out in it benefits from a gentle wipe of the paws. On dark evenings, a quick-release reflective collar helps a cat be seen.
The bottom line is that a cat-safe winter comes down to knowing the antifreeze danger and acting fast if you suspect it, checking your engine before starting the car, keeping your cat warm with cosy indoor spots and shelter, and making sure it can always get back inside. Do that, keep your vet’s number and a pet poison line to hand, and your cat can see out the cold months safely. For another season’s hazards, our guide on keeping your cat safe at Christmas covers the festive dangers, lilies above all.
Common questions
- Why is antifreeze so dangerous to cats?
- Antifreeze contains ethylene glycol, which tastes sweet and is extremely poisonous, and cats are very sensitive to it, so even a tiny amount, licked from a paw or a puddle, can cause fatal kidney failure. Spills and drips around cars and garages in winter are the usual source. Clean up spills at once, store it securely, and if you suspect your cat has had any, treat it as an emergency and call your vet immediately, since treatment must be very fast.
- Do cats climb into car engines in winter?
- Yes, cats seek out warmth and will curl up in a recently used, still-warm engine bay or on top of a tyre, which is very dangerous when the car is started. In cold weather, bang on the bonnet and check underneath before starting your car, especially if you have cats or strays in the area. This simple habit can save a cat's life.
- How do I keep my cat warm in winter?
- Make sure your cat has a warm, draught-free place to sleep away from cold floors, and provide extra cosy spots. Outdoor and elderly cats need particular care, so give access to shelter and consider keeping them in during very cold or icy spells. Always make sure your cat can get back indoors, and never let it be shut out in freezing weather.
- Should I keep my cat indoors in winter?
- You do not have to, but make sure your cat can always get back inside to warmth, and consider keeping it in during severe cold, ice, or snow, especially if it is old or unwell. Ensure a cat flap is not frozen shut, provide a litter tray indoors, and give plenty of warm resting spots. Many cats choose to stay in more in winter anyway.
