How Long Can A Dog Go Without Water?

how long can a dog go without water

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Have you ever been so thirsty that your throat felt like it was on fire? Now imagine how your dog feels. They can’t tell you when they’re thirsty, so it’s up to us to make sure they stay hydrated. But how long can a dog go without water?

While every dog is different, the average healthy adult dog can withstand up to three days without water under normal circumstances. However, this is only possible if they have access to shade and cool temperatures, as well as food that contains moisture. 

If any of these factors are missing, a dog’s risk of dehydration increases significantly. However, there’s more to the story! 

Here we will discuss how long a dog can go without water in detail, as well as some dog dehydration signs you must know.


How Much Water Should Dogs Drink?

how long can a dog go without water

Just like people, dogs need to drink plenty of water to stay healthy. Water makes up more than 70% of your dog’s body by weight. That means your dog needs to consume a lot of water every day to maintain his or her water content.

So how much water does your dog need?

Well, it is estimated that dogs need about an ounce of water for every pound of body weight, so a 25 lbs. dog needs about 25 oz. of water (or 3 cups) per day. 

You can help your dog stay hydrated by making sure they have access to clean, fresh water at all times and by taking them on regular trips to the dog park for a swim. Swimming is a great way for dogs to get exercise and have fun while also staying hydrated.

If your dog is not a fan of water, you can also try adding some chicken broth or beef broth to their water bowl. This will make the water more appealing to them and encourage them to drink more. 

Warning Signs That Your Dog Is Dehydrated

how long can a dog go without water

Dehydration in dogs is a serious issue and can lead to health problems if not treated quickly. If you think your dog may be dehydrated, take him to the vet right away. 

Let’s take a look at some warning signs of dog dehydrated symptoms: 

Dry Nose

A dry nose is not always an indicator of dehydration, but it could be a sign when combined with other symptoms. If your dog’s nose is dry, cracked, or flaky, it could mean that he’s dehydrated. Other causes of a dry nose include allergies, air quality, or irritation.

Sunken Eyes

Dehydration can cause serious problems for your dog, including its eyes. If you notice that your dog’s eyes have sunken in, it is a sign of dehydration and you should take them to the vet immediately. 

When there is not enough water in the eye, it can cause the muscles that support the eye to weaken, causing the eye to sink in.

Low Skin Elasticity

When it comes to dehydration, your dog’s skin is the best indicator. To check for moderate dehydration, lift the skin on your dog’s back and release it. Note how long it takes for the skin to fall back into place. If the skin lingers in position, your dog needs water immediately.

Dark Yellow Pee

Dehydration will cause your dog’s pee to become dark yellow or amber. Urine that is significantly darker than usual is a sign of dehydration and should be checked by a vet as soon as possible.


Dehydrated dogs will often appear tired, lazy, or sleepy. If your dog is panting more than usual or seems listless, he may be dehydrated and in need of water.

How Long Can A Dog Go Without Water?

can dog survive without water

If you’re worried about your dog dying of dehydration, don’t fret – they can actually live without water for up to 72 hours/3 days. However, this number could be drastically reduced if the animal is already sick or if they’re in extremely hot conditions.

After 24 hours without water, your dog will start to experience negative effects from dehydration. Generally speaking, dogs can go 6-10 hours without water without much in the way of ill effects. 

So if you forget to fill the bowl before you left for work, there’s little risk that you’ll come home to find that your furry friend is in danger.

When it comes to determining how long your dog can go without water, there is no one-size-fits-all answer. 

Here are a few factors to consider:


If your dog is pregnant, make sure to give her plenty of water every day. Dehydration in dogs can intensify any illness, so it’s important to keep her hydrated. Give her small amounts of water throughout the day to ensure she stays healthy and happy.


As dog’s age, their kidneys become less efficient at filtering out toxins. This means that they need more water to stay hydrated and healthy. Make sure to give your older dog plenty of water throughout the day.


If your dog is particularly active, has a thick coat, or tends to drool a lot, it may need more water than average to stay hydrated. This is because they tend to lose more water through daily activities and habits. 

To make sure your dog stays properly hydrated, replenish their water supply frequently throughout the day.


how long can a dog go without water

If it’s particularly hot outside, your dog will need more water to stay cool and comfortable. Make sure to offer them water regularly, and take them for extra drinks if they seem thirsty. 

Hot weather isn’t the only time your dog may need extra hydration – if they spend a lot of time running around in the cold, their bodies will need water to generate heat, so offer them water frequently and make sure they have access to a bowl of fresh water at all times.


Now that we know how long a dog can go without water, we need to be sure to keep an eye on our furry friends and make sure they are getting enough to drink! 

Dehydration can happen quickly in dogs, so it is important to always have fresh water available and to make sure they are drinking enough throughout the day. If you think your dog is seriously dehydrated, contact your veterinarian immediately.

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