How to care for guinea pigs in winter

As the weather gets colder, we might look at our furry friends and wonder how they’ll cope with the lower temperatures. Whether they live in a spacious hut outdoors or are cosied up in a cage indoors, there are a few things to consider when caring for guinea pigs in winter. Do guinea pigs hibernate? What are the signs of hypothermia in guinea pigs? How can you keep your piggies warm?

The fur coats of long-haired floofs could trick you into thinking that winter won’t affect them as much, but considering how delicate they are, it’s important to maintain the same comfortable temperature all year round. So let’s have a look at the best ways to look after guinea pigs in the winter season!

The ideal room temperature for guinea pigs

Our furry friends are sensitive souls, and their bodies are fragile, too. Many piggy parents don’t realise that a steady, comfortable room temperature is important for their companions’ wellbeing, unlike other rodent relatives who are a little hardier in all kinds of weather. A sudden drop or rise in temperatures can be very dangerous for our floofs, so getting the temperature right for your pigs is key to healthy small furries.

Generally, guinea pigs do best in comfy room temperatures, and both heat and cold can make them unwell.

The Ideal Daytime Temperature: 18°C to 23°C (65°F to 73°F) 

Your piggies will be popcorning happily at a temperature between 18°C to 23°C, or 65°F to 73°F. This is a comfortable room temperature, even for us humans. If the temperature drops below 16°C (60°F), it gets too cold for our warmth-loving pets, and anything above 24°C (75°F) can quickly lead to heatstroke.

Keeping a thermometer in your piggies’ room is a great way to make sure your guinea pigs are comfortable.

Ideal Night Time Temperature: above 16°C (60°F) 

When it gets colder, guinea pigs sleep longer to use up less energy. They’ll be a little less active - probably no popcorn parties - and you may come across a piggy in deep sleep. Remember, this sleepy state is not guinea pig hibernation, but rather torpor.

To avoid your piggies getting too cold and going for a long sleep, the room temperature should always be above 16°C (60°F), even at night. 

Visual guide to the perfect temperature for guinea pigs

Difference between hibernation and torpor

Hibernation is a deep sleep some animals go into during the colder months. During this time, they don’t wake up for weeks on end - not even to eat. Animals hibernate, so they don’t need as much energy and food during cold seasons

Torpor is a different kind of deep sleep that animals use to get through tough times with limited food. Torpor doesn’t last anywhere near as long as hibernation, and the animals can wake up after just a few days or nights of sleep.

Let’s investigate these two sleepy states a little more closely!

Hibernation

When it gets colder outside, food becomes scarce and the animal kingdom has to find new ways to survive. And that’s why some animals go into hibernation, the long winter sleep.

When they’re in hibernation, an animal’s body functions slow down. That means their body temperature drops, their heartbeat and breathing slow down, and so does their metabolism. It helps them save energy they’d burn if they were awake and active because they need to eat food to make more energy. Instead, when their energy is on the lowest setting, they use up the extra chunk they’ve added by eating more before hibernation.

Animals hibernate for days, weeks, and even months at a time - and we’re sure a few humans would love to join them for the long sleep throughout the colder months.

Torpor

You may be surprised to hear that only a few animals, like bears, squirrels, and hedgehogs, go into hibernation every year. Most animals go into a much shorter and milder state of sleep called torpor. It’s somewhere between normal sleep and full-on hibernation. So what exactly happens when an animal is in torpor?

When we fall asleep at night, our heart rate and breathing slow down - and that’s exactly what happens when an animal goes into torpor. Though torpor is a stronger sleep than normal, the animal isn’t as far gone as they are during hibernation.

Just like hibernation, torpor is a way to save energy when there isn’t much food around. Unlike hibernation, it often only lasts for a night or two - a few days tops. The animal usually wakes up when there’s food available again, depending on their usual dinner times. Some animals eat at night, some prefer snacking during the day.

A sleeping hedgehog next to a sleepy guinea pigs inside a hidey

Do guinea pigs hibernate?

No, guinea pigs do not hibernate, even if they’re staying in really cold temperatures

Our floofy friends are related to wild guinea pigs who live in warmer climates around South America, so they just never had use for a long hibernation sleep. Living in a warmer part of the world means that there’s enough food available even during the coldest month.

Piggies have a tendency to hide if they’re scared or stressed, so some people think guinea pigs hibernate. And although they enjoy burrowing into a cosy fleece hidey, it’s not the same as a hedgehog building their hibernation home. The cute cavies are just staying hidden until it seems safe to get back out. T

So, since guinea pigs don’t hibernate, what extra cavy care do they need to stay snug as a bug during winter?

What happens if my guinea pigs get too cold?

If temperatures drop below 16°C (60°F), your piggies will think they need to conserve energy by going for a big, long sleep. This is because of torpor, which can last a day or two, and it helps your furry friends stay warm without losing too much energy.

If you notice your piggies getting sluggish, being slow to respond, and even having a lower heart rate, it could be because they’re going into torpor. Sometimes, they can even appear half dead, giving piggy parents across the world a big fright! The best thing to do is move your floofs to a warmer space, so you can watch them as they come out of the torpor.

If the pigs are in cold temperatures for too long, they could get hypothermia. This is a serious condition they get when their body temperature drops too low. The best method is prevention by keeping them at comfortable room temperature. But if you do notice any signs of torpor, it’s best to speak to a cavy-savvy vet straight away. The symptoms of torpor overlap with signs of other pig diseases, so it’s better to get them checked.

Signs of hypothermia in guinea pigs

We now know that guinea pigs really don’t like any temperatures below 16°C (60°F), but when do colder temperatures become a danger to our furry friends?

If the sweet floofs are cold for a longer period of time, their whole body temperature drops, and that’s when hypothermia can set in. Your piggies’ normal body temperature is around 38°C to 39°C (100°F to 102°F), and if it drops below that, the floofs are at risk of hypothermia.

If you’re worried about your piggies being cold, these top tips will be helpful:

  1. Check for cold ears, nose, and feet: if these areas feel cold, it’s your first and best indication that yours piggies are feeling a bit chilly.
  2. Use a thermometer: you can pop a thermometer near your cavies’ cage - as long as they can’t get to it - to keep track of the room temperature; your pigs are happiest at 18°C to 23°C (65°F to 73°F).
  3. Look out for cold shivers: just like us, guinea pigs shiver when they’re cold; they’ll also snuggle up to their piggy pals for extra warmth.
  4. Watch their sleeping pattern: we’ve learned that piggies go into a deep sleep called torpor when they’re cold; if you notice them sleeping for hours on end during the day or night, it could be down to them being very cold.

Like most animals, guinea pigs have a way of dealing with cold temperatures for a short time. But if you notice your piggies are lethargic, sleeping much more, or seem uncomfortable, it’s best to call your vet straight away.

Three piggies looking cold, cuddling together to keep warm

How to keep guinea pigs warm during winter

If your piggies live in an area of the world that has cold winter months, they’ll need your help to keep warm. Generally, it’s best to keep your cute cavies inside your home, so you can take charge of the conditions they’re living in. Let’s have a look at some handy tips to keep your guinea pigs warm when it’s frosty outside!

Top Tips for Indoor and Outdoor Pigs

Especially during the colder months, your guinea pigs should really live indoors. While they can get used to slightly colder temperatures, their little bodies don’t deal well with a sudden change in temperature or temperatures below 16°C (60°F). Ideally, they’ll live in your home with the odd trip outside if the weather is nice.

If you can’t move your piggies indoors permanently, you can still use these tips to keep them warm:

Reduce drafts

Whether your piggies live indoors or outdoors, drafts are one of the biggest dangers to their wellbeing. Even if the temperatures are right, a cold draft can make a piggy sick. For your indoor pigs, this means keeping them away from windows and doors, and placing them in a draft-free area of your home. Outdoor piggies need a well insulated home that’s placed in a sheltered area, so no drafts bother them at any point.

Relocate their cage

To keep a steady and comfortable temperature for your pigs, their home’s location is crucial. Indoor pigs should have their pet palace far away from doors and windows, so they aren’t exposed to drafts or direct sunlight. They also shouldn’t be too close to any heat sources, like radiators.

Outdoor piggies also prefer a sheltered space free from drafts and too much direct sunlight. You can put their hutch in a wind-free corner of the garden.

Optimise the temperature

To keep your pigs’ palace at the right temperature of 18°C to 23°C (65°F to 73°F), piggy parents may need to get creative. Indoor piggies enjoy warmth from the home’s heating system, but outdoor pigs may need extra help with this. In the colder season, piggy parents can add extra bedding, more cosy hideys, and cavy-savvy heat mats to keep their floofs warm.

Make sure they can exercise

It can be tempting to build a cosy burrow for your pigs during the colder months to keep them snug as a bug, but remember they’re active all year round. Since guinea pigs don't hibernate, they need lots of space to keep in top shape - even in winter.

Monitor your guinea pig

Every piggy’s different, and while some may be okay with a certain temperature, other pigs could struggle. Keep a close eye on your guinea pigs and watch out for signs of them being too cold.

Guinea pigs inside a Kavee cage

Don’t Roast Your Piggies!

Yep, we have to make sure our floofy friends are cosy and comfy when it’s cold outside. But it’s just as important not to overdo it. Guinea pigs can’t sweat, so it’d be difficult for them to cool down if their home is too warm.

If you’re offering your cute cavies some extra warmth during winter, it’s a good idea to make sure they can move away from it if they want to. After all, if you’re bundled up in a sweater with thick socks, a scarf, and a hat, you may not want a hot water bottle, right?

How to Keep Your Outdoor Guinea Pigs Warm

Depending on your location, winter time can be pretty tough for your floofy friends. Frost, ice, and snow aren’t gentle on piggy paws - so we generally recommend you bring your guinea pigs indoors during winter. But if your pigs have to live outside either way, it’s key to at least winter-proof their hutches. Let’s find out how!

Good hutch insulation

Good insulation makes or breaks a hutch’s suitability for guinea pigs. A poorly insulated hutch lets through cold and drafts to your piggies, leaving them feeling frosty. Good insulation makes the hutch a cosy den for your piggies.

While Kavee’s all about indoor housing for your pigs, we think it’s important every pet parent carefully checks their pets’ outdoor habitat for cavy-savviness.

Extra cosy bedding

Bedding of any kind is so important for your outdoor floofs. First and foremost, it gives them something to burrow into and snooze on, so it’s key to piggy comfort. Adding extra bedding also means extra comfy cavies, and another way for them to stay warm is by huddling in their bedding together.


The other part that bedding’s so crucial for is keeping your pigs dry. Whether it’s their own bathroom breaks, a leaking water bottle, or a bit of snow drifting in, any moisture is uncomfortable for your piggies. When you’re wet and it’s cold… It’s never a nice feeling, right? Bedding absorbs the moisture, so you don’t have to worry about soggy piggy bottoms in the cold.

A heat pad

Luckily, there are a few cavy-savvy heat pads and mats out there. Some need electricity to warm up (watch out for cables or unsafe parts your pigs could chew), while others just need a few minutes in the microwave to stay warm for hours after. Whichever option you pick to offer extra comfort to your floofs, remember that piggies should be able to move away from it when they’re toasty enough.

Guinea pigs inside outdoor hutch

FAKs - Frequently Asked Kavees about Guinea Pigs in Winter

Yes, sadly guinea pigs can die from hypothermia. Temperatures below 16°C (60°F) aren't good for our precious pets, and if they get too cold, they can get sick and even pass away.

Guinea pig hibernation doesn’t exist - only an extended deep sleep called torpor that lasts a night or two.

The ideal temperature for our floofy friends is between 18°C and 23°C (65°F and 73°F).

Guinea pigs like a comfortable room temperature, and if they get too hot, they’re at risk of heatstroke. Piggy parents should keep a close eye on their pets in temperatures over 24°C (75°F).
Guinea pig fun