Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Cat Temperature: Our Vet Explains What Is Too High, Low & How to Take It

Cat Temparature thermometer

You may feel regularly hot and cold throughout the day with minor fluctuations in your body’s temperature. Your cat is no different! You may notice that they move toward a sunbeam in the morning and choose a cooler, shady spot in the afternoon. These minor changes are completely normal. What’s not normal is a drastic temperature change that is not as fleeting.

A cat’s normal temperature is somewhere between 100.5℉ and 102.5℉. Anything higher or lower may be a concern. It can be hard to tell if your kitty’s temperature is abnormal, though, so taking it with a thermometer is the best way to check.

divider 3 paws

What Is the Normal Temp for a Cat?

Most cats are going to fall in that 100.5℉ and 102.5℉ range when they’re healthy and feeling good. Slight variations can take place based on their environment or their activity level. So, if your kitty just finished up with a case of the zoomies, their temperature may be on the high side or slightly above that normal range, or if they’ve just come inside from sitting in the snow (yes, some cats do like snow!), they may be a bit low. Both of these types of changes should be temporary, with their body returning to normal within just a few minutes.

What’s considered an abnormal temperature is a number that falls outside of the normal range and stays there. Hyperthermia is when a cat’s body temp is over the normal limits, such as with a fever or overexertion. Hypothermia is when their temp is below normal, which can happen with severe trauma, anesthesia, or exposure to very cold conditions.

Both can have serious consequences, so it’s important to know when your cat’s temperature is too high or too low. To find out how warm your kitty is, you’ll need to know how to take their temperature properly.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 3 paws

How to Take a Cat’s Temperature

Since your feline friend is covered in hair, feeling their forehead to assess their temperature isn’t going to work, so you’ll need to get out the thermometer. Similarly, forehead thermometers made for humans won’t work. You’ll need to use a rectal thermometer or an ear (aural) thermometer meant for cats.

How to Take a Cat’s Temperature With an Ear Thermometer

These are like human ear thermometers in that a long arm is inserted into the ear canal, with a temperature reading popping up fairly quickly. These may be easier to use and less gross than a rectal thermometer, but they may also not be as accurate. To get a proper reading, the tip of the thermometer must get as close to the eardrum as possible. Wax and other debris may also affect the reading.

To use, you must simply push the power button, insert the probe deep into the ear, and wait for the beep. Having someone hold your kitty’s head may help keep the probe where it needs to be to get the best reading.

cat ear thermometer
Image Credit: Viktoriia Hnatiuk, Shutterstock

How to Take a Cat’s Temperature With a Rectal Thermometer

The rectal thermometer has long been the method of choice for most vets, though that may change. Rectal thermometers may be digital or old school with a column of mercury that will need to be read. To use one of these, you’ll likely need a buddy to hold your kitty because they are not going to like it.

Position your cat so you have access to their rectum and they are comfortable, as this may take a few minutes. Mercury thermometers will need to be shaken so they read well below 100℉. Apply a bit of a lubricant, such as petroleum jelly, to the tip of either type of rectal thermometer, push the power button for digital thermometers, and insert the probe end into your cat’s rectum. You’ll only need to go in about an inch.

Digital rectal thermometers should beep and give you a number within a minute or so, while mercury thermometers will need to remain in place for 2–3 minutes. You can then remove the thermometer and read the numbers.

cat rectal thermometer vet checking
Image Credit: thodonal88, Shutterstock

Aural or Rectal Thermometer: Which Is More Accurate?

The accuracy of taking your cat’s temperature may depend more on the process than on the thermometer. Numerous studies have yielded varying results on the accuracy of aural thermometers versus rectal. The general consensus is that the aural ones are fine if used correctly.

A possible issue that may come up and affect the accuracy of your cat’s temperature reading is movement from your kitty. As you can imagine, most cats aren’t going to willingly let you stick something in their ear or elsewhere, so they’re going to want to wiggle away. Having a set or two of extra hands can decrease the severity of this potential issue and help you get a more accurate reading.

If your cat just isn’t having it, even with help from others to hold them, see your veterinarian. No one wants you or your kitty to get hurt, so seek professional help if your cat isn’t into it or if you just don’t want to take part.

divider 3 paws

How to Care for a Cat With a High or Low Temperature

If your kitty seems to have a change in body temperature that is here to stay—in other words, it doesn’t return to normal within a few minutes—see your vet. Both high and low temperatures can indicate that something is wrong with your cat that needs to be treated by a veterinarian.

Female veterinarian holds sick cat close-up
Image Credit: megaflopp, Shutterstock

divider 3 paws

Frequently Asked Questions

Can You Take a Cat’s Temperature With a Human Thermometer?

Most human thermometers can double as cat thermometers if you use them correctly. Just ensure that an aural thermometer is long enough to reach into your cat’s ear and that you can properly clean and disinfect a rectal thermometer after use.

digital thermometer showing a cat has a fever
Image Credit: Evgeniy Kalinovskiy, Shutterstock

How Can You Tell If Your Cat Has a Fever Without a Thermometer?

Taking your cat’s temperature with a thermometer is the only true way to know if they have a fever. However, there are a few other things that you can do to give you a rough idea. Feeling your cat’s ears or nose can provide you with a bit of insight into their body temperature. If the ears or nose feel hotter, it may be due to a fever. If they feel cooler, it could mean that something is going on that is causing their body temp to drop.

You should also pay attention to other signs, such as lethargy or a decreased appetite, that may accompany a change in body temperature. If you think that your cat’s body temperature is abnormal, see your vet.

divider 3 pawsConclusion

Knowing how to take your cat’s body temperature and what is normal can help you make a quick assessment of your pet’s health status to determine if they need to see a professional. However, if your cat shows any signs of illness or an injury, with or without a change in body temperature, do not hesitate to see your vet.

See also:


Featured Image Credit: frantic00, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Cyril For a Day: Following My Cat’s Schedule

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

10 Essential Cat Litter Box Accessories to Get You Started

One of the challenges that cat owners face is coming up with a substantial cat litter box system and cleaning routine. More often...

Can Cats Eat Deli Meat (Lunch Meat)? Vet-Verified Facts & FAQ

If you’ve ever looked up from a leisurely lunch to find your cat eyeballing your meal, you know our feline friends can give...

10 Best Pet Cameras for Cats in 2025 – Reviews & Top Picks

Are you interested in seeing what your cat gets up to during the day? Pet cameras provide cat owners with a unique opportunity...

More related

How Much Do Maine Coons Purr? Vet-Reviewed Facts & Info

Maine Coons are known for their luxurious coats, large size, and charming personalities and are one of the most popular cat breeds in...

Cats in Fall: Pictures, Behaviors & FAQ About Autumn Kitties

Fall is one of the most beautiful times of the year. Fall photography is gorgeous in its own right. The only thing that...

How to Prevent Dental Disease in Cats: 6 Vet-Approved Care Tips 

Dogs may have a reputation for bad breath, but our feline friends are not strangers to poor oral health either. Dental issues are...

How Many Calories Should a Cat Eat? Vet-Reviewed Cat Feeding Guide

All cats have individual dietary needs based on their breed, size, age, and health conditions. As notoriously picky eaters, finding the right food...

Keep reading

Is Your Cat Winking, or in Pain? 4 Eye Problems Every Owner Should Know

Think your cat is just winking at you in a mysterious, adorable way? Think again! If your furry friend keeps one eye closed most of the time, it might be more than a quirky habit. It could signal an underlying...

A photo of a lazy Cat winking at the camera

How Much Cat Litter Per Month Should You Use? Vet-Verified Facts & FAQ

There are many pleasant aspects of cat ownership, but litterbox duty isn’t among them. Still, it is essential to care for your cat, so ensuring that you provide the cleanest litter box possible for your pet is paramount. While litter...

cat sniffing litter in the box

Can Cats Eat Sour Cream? Vet-Approved Nutritional Facts & Safety Tips

Many people love to use sour cream on their favorite foods, particularly tacos, fajitas, burritos, and chili. Sour cream is dairy, like milk, and milk is commonly given to cats. So, you might surmise that sour cream is a perfectly...

Can Cats Eat Sour Cream

How Does My Cat Know When I Wake Up? Morning Habits Explained

Cats are naturally reclusive creatures that like to keep to themselves. But once they find owners worth loving, they can’t get enough of them. If you’re lucky enough to have a cuddly cat, they’ll likely curl up with you in...

teenager cat owner cuddling with pet cat

Can Cats Eat Saltines? Vet-Approved Nutritional Value & Alternatives

Saltines are a favorite salty snack of many people because of their dry and crunchy texture and ability to match any salty or sweet food. Often, our pets may be attracted to these delicious snacks too, so you might wonder...

Can Cats Eat Saltines

Are Prayer Plants Toxic to Cats? Vet-Reviewed Houseplants Examined

The prayer plant, Maranta leuconeura, enjoys the cooler, even temperatures found inside your home and indirect light through a shady window or a sheer curtain. It typically grows to about 12 inches in height with broad, dark green leaves that...

Catster_Are Prayer Plants Toxic to Cats

How to Care for Senior Cats: 12 Vet-Approved Tips

As your cat becomes more senior, it may not be as energetic as he or she once was. You might also notice other behavioral and physical changes that indicate your golden oldie cat needs a little more care and attention...

young woman holding cute siberian cat with green eyes

Are Indoor Cats Happy & Fulfilled? Vet-Verified Facts & FAQ

Many cat owners wonder about the happiness and well-being of their cats when it comes to keeping them indoors. On one hand, there’s the idea that a cat should be free to roam outside; on the other hand, some argue...

white Maine Coon cat at home