Why do cats sunbathe?
There it is again. The best seat in the house, occupied.
Your cat is stretched across a suspiciously precise rectangle of sunlight, belly exposed, paws gently toasted and absolutely no intention of moving. Not for the hoover. Not for your work call. Maybe not even for Nibbles.
But why are cats such committed sun worshippers?
Let’s shed some (sun)light on it.
Cats like it hot
Cats naturally run warmer than humans, so the temperatures that have us peeling off jumpers can still feel perfectly pleasant to them.
Finding a sunbeam gives your cat an easy source of warmth. Rather than using their own energy to keep cosy, they can simply flop down and let the giant glowing radiator in the sky do the work.
Efficient. Sustainable. Extremely cat.
Warm resting spots may be particularly appealing when the weather is cooler, as cats can curl up somewhere sunny to conserve body heat and stay comfortable.
Sunbathing makes snoozing even better
Cats sleep. A lot.
And when you’re planning to spend a respectable portion of the day unconscious, location matters. A warm patch on the carpet can turn an ordinary nap into a five-star spa experience.
Cats also adjust their resting positions to manage heat. They might curl tightly into a ball when they’re chilly, then stretch out like a furry baguette once they’ve warmed up.
It feels safe and comfortable
Cats are experts at finding spots where they can fully relax.
A quiet windowsill, warm bed or sunny corner lets them rest while keeping an eye on their kingdom. From there, they can monitor birds, neighbours, falling leaves and that plastic bag that moved once and therefore can never be trusted again.
When a cat stretches out completely, particularly on their side or back, it often suggests they feel safe and relaxed in their surroundings.
Consider the exposed belly a compliment.
Not necessarily an invitation.
Are cats getting vitamin D from the sun?
Not quite.
Humans can make vitamin D in their skin when exposed to sunlight. Cats don’t rely on sunshine in the same way. They need to get the vitamin D they require through a complete and balanced diet.
So your cat isn’t lying in the window to top up their vitamins.
They’re there because it’s warm and comfortable.
Can cats get too much sun?
Yes. Even the most experienced feline sunbather can overdo it.
Cats can become dehydrated or overheat in hot weather, so they should always have access to fresh water, shade and a cooler place to retreat to. Cats don’t sweat across their whole bodies like humans do; they produce only small amounts of sweat in areas such as their paw pads and rely heavily on grooming and changes in behaviour to cool themselves down.
Keep an especially close eye on kittens, elderly cats and cats with existing health conditions during warmer weather.
Panting is unusual in cats and can be a sign that something is wrong. If your cat appears distressed, is panting, drooling, confused or unusually sleepy in the heat, move them somewhere cool and contact a vet promptly.
Can cats get sunburn?
Unfortunately, yes.
Cats with white or pale fur, particularly around the ears and nose, are more vulnerable to sun damage. Redness, crusting or sores on exposed skin can all be signs that a cat has had too much sun.
During strong sunshine, provide plenty of shaded resting spots and consider keeping vulnerable cats indoors during the hottest part of the day. Speak to your vet before applying sunscreen, as human products may contain ingredients that aren’t safe for cats.
How to build the ultimate feline sun trap
Your cat has probably already completed a full light-and-heat survey of your home. But you can improve the facilities with:
A comfortable bed near a sunny window
A shaded spot nearby when they’ve had enough
Fresh water in more than one location
Closed or securely screened windows
Curtains or blinds that can block intense afternoon sun