do cats drink a lot of water

Cats will generally drink about 4 ounces of water per 5 pounds of body weight. So a 10-pound cat will typically drink about 8 ounces of water every day. Larger cats and very active cats will drink more than smaller or inactive cats. Some cats just naturally don’t drink very much, while others will drink more often.

How Much Water Does My Cat Need?

As a general rule, your cat should drink at least three ounces of water for every five pounds that they weigh. Recall that this covers any water they might ingest from candies or food.

Weight Amount of Water
5 pounds 3 ounces
10 pounds 6 ounces
15 pounds 9 ounces
20 pounds 12 ounces
25 pounds 15 ounces

This is a general rule. Naturally, your cat may drink more water if it’s hot outside or if they exercise a lot because they are losing more water.


Compared to cats that eat dry food, those who eat wet food consume significantly more moisture. Therefore, it’s normal for your feline friend to drink more water to make up for the moisture lost when switching to dry food. This is one reason for increased thirst that doesn’t always translate into more frequent urination.

Drinking more water will probably be a long-term trend once on a dry food diet, but it won’t be as noticeable as it is in the early days of the diet adjustment. After a few weeks, if you still notice your cat drinking a lot of water, take them to the veterinarian to rule out any other reasons.

Your cat may be drinking a lot of water because it’s hot outside. It’s the purr-fect beverage for a summer day!.

Increased thirst is normal in this weather, as long as it isn’t associated with heatstroke. Watch out for these signs of heatstroke in your cat:

  • Panting/abnormal breathing
  • Restlessness
  • Red or pale gums
  • Inability to rouse, weakness, or collapse
  • Vomiting
  • Abnormal mentation
  • Unsteady gait
  • Tremors or seizures
  • Drooling

Heatstroke is less likely to be the cause if your cat is just more thirsty and not exhibiting any of these symptoms. However, if you’re unsure or worried, we advise contacting a veterinarian.

One of the most common and serious diseases to look out for in your cat is kidney disease. While manageable, it is not curable—which is why it’s so important to detect it early and start therapies to slow its progression.

Some signs of kidney disease in cats include:

  • Increased thirst
  • Decreased appetite
  • Increased urination
  • Muscle or weight loss
  • Lethargy
  • Vomiting
  • In severe cases, pale gums (anemia)

Visit your vet for a clear diagnosis and treatment.

A serious disease, Hyperthyroidism in cats can affect their hearts. Believe it or not, something to keep your eye out for is if your older cat suddenly starts acting like a kitten again. Other symptoms include:

  • Increased appetite
  • Significant and quick weight loss
  • Unkempt hair coat and thickened nails
  • Vomiting and/or diarrhea
  • Increased thirst
  • Hyperactivity and vocalizing

In order to assist with diagnosis and, if necessary, to go over treatment options, your veterinarian will probably perform some blood work.

Diabetes Mellitus is another major factor that contributes to cats’ increased thirst and urination. Cats with diabetes usually have excess weight and have trouble controlling their blood sugar. Maintaining a healthy weight is one of the best ways to keep your kitten from developing diabetes.

Insulin injections are commonly administered to cats diagnosed with diabetes, and their blood sugar and urine levels are closely monitored. Diabetes in cats should never be ignored or neglected; take your cat to the veterinarian as soon as possible to reduce your cat’s risk.

When Do I Need To See the Vet?

If your cat’s excessive thirst persists or if there are any additional symptoms, you should contact your veterinarian. For numerous medical conditions mentioned above, it’s critical to begin treatment as soon as possible.

Your cat might need to be kept by your veterinarian for a long time while they perform various tests, including blood work. The tests required will vary based on the symptoms your cat is exhibiting. They might conduct several tests to eliminate options from the list.


Is it normal for my cat to drink a lot of water?

There are a number of reasons why your cat’s water intake may have increased. Weather and hot temperatures can temporarily increase your cat’s thirst. They may also drink more water if they are being extra active. Some medications prescribed by your vet may cause your cat to be thirsty more often.

Why is my cat so thirsty all the time?

If your cat is showing signs of being very thirsty and you are finding yourself filling up the water bowl more than normal, contact your veterinarian so he can perform a complete examination and tests. Causes of increased thirst in cats are many, and include: Diabetes. Kidney failure.

How much should a cat drink in a day?

How Much Water Cats Should Drink. Typically, cats need between 3.5–4.5 ounces (about ½ a cup) of water per 5 pounds of body weight per day. If you have a 10-pound cat, they should be consuming between 7–9 ounces (about 1 cup) of water.

How do I know if my cat is drinking enough water?

If your cat’s skin doesn’t snap right back, your feline friend could be dehydrated. Sunken Eyes – Take a good look at your cat’s eyes. If your cat’s eyes appear sunken or glazed over this could be another indication that they haven’t been drinking enough water. Dry Mouth – Take a look at your cat’s gums.