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• Why Water Matters
• How Much Water Does My Dog Need?
• Factors That Affect Water Needs
• Signs of Dehydration in Dogs
• Can Dogs Drink Too Much Water?
• How to Encourage Healthy Hydration
• FAQs

Why Water Matters

Water is essential for every function in your dog’s body. It helps regulate temperature, support organ function, aid digestion, and transport nutrients. Just like us, dogs can’t thrive without proper hydration — especially during warmer months or after exercise.

How Much Water Does My Dog Need?

A general rule of thumb: dogs need about 50–60 ml of water per kilogram of body weight per day. That’s roughly:

• Small dog (5 kg): ~300 ml/day
• Medium dog (15 kg): ~900 ml/day
• Large dog (30 kg): ~1.8 litres/day

Puppies, lactating dogs, and active breeds may need more. Always provide fresh water and let your dog self-regulate — most dogs drink what they need if water is readily available.

Factors That Affect Water Needs

• Diet: Dogs on dry kibble need more water than those eating wet or raw food.
• Activity level: More movement = more moisture loss through panting and sweating through paws.
• Weather: Hot, dry weather increases water demand.
• Health: Conditions like diabetes or kidney disease can increase thirst.
• Life stage: Puppies and seniors may be more vulnerable to dehydration.

Signs of Dehydration in Dogs

Watch for these signs, especially in summer:

• Lethargy
• Dry nose or gums
• Sunken eyes
• Loss of skin elasticity (slow “skin tent” test)
• Thick, sticky saliva

If you notice any of the above, offer water immediately and call your vet if symptoms persist.

Can Dogs Drink Too Much Water?

Yes — although rare, excessive water consumption (polydipsia) can be a symptom of an underlying health issue or even lead to water intoxication. If your dog seems constantly thirsty or starts drinking obsessively, consult your vet.

How to Encourage Healthy Hydration

• Use clean bowls and change water daily
• Add a splash of low-sodium bone broth to water
• Use water fountains for dogs that love running water
• Offer water during walks and travel
• Feed high-moisture foods in hot weather

Explore our guide to keeping your dog cool in summer for more hydration tips on the go.

FAQs

Should I leave water out for my dog all day?

Yes. Unless your vet advises otherwise, fresh water should be available at all times.

Is it normal for my dog to drink less in winter?

Yes — dogs often drink less in cooler weather. As long as they’re eating well and showing no signs of illness, it’s usually fine.

Can I give my dog ice cubes?

Yes — many dogs enjoy them, especially in summer. Just avoid giving large, hard cubes to aggressive chewers to prevent dental damage.

What if my dog doesn’t seem to drink enough?

Try moving the water bowl to a different spot, adding a little broth, or using a pet water fountain. If the issue persists, consult your vet.

Are certain breeds more prone to dehydration?

Brachycephalic breeds (like Bulldogs and Pugs), working dogs, and long-haired dogs in warm climates may need extra hydration support.