Do Cats Need to Drink More Water in the Summer?

Summer requires special attention to cat hydration, precisely because their natural instinct doesn't lead them to drink as much as they need.


Os Gatos Precisam de Beber Mais Água no Verão?

Yes, cats need to drink more water in the summer. And they are animals especially vulnerable to dehydration.

Cats have a particular relationship with water. By nature, they are descendants of desert animals and tend to drink little spontaneously, obtaining much of their hydration through the food they consume. In summer, this tendency can become a serious problem, as their water needs increase and the instinct to drink does not always keep up with this increase.

How Cats Regulate Temperature

Unlike dogs, cats pant very little. Their main cooling mechanism is licking their fur. By licking themselves, they deposit saliva on their coat, which, as it evaporates, helps lower their body temperature. This process, although effective, also consumes fluids and increases hydration needs on hotter days.

Cats also instinctively seek out cool, shady spots when the heat increases, reducing activity to conserve energy. Even so, in intense summers, these natural strategies may not be enough.

Why Do Cats Drink So Little Water?

A cat's instinct is programmed to obtain water mainly through food; in nature, prey like mice and birds have a high moisture content. When fed dry kibble, cats often don't compensate for this difference by drinking more water, which puts them at risk of chronic dehydration, especially in summer.

Furthermore, cats are very sensitive to the quality and freshness of water. Stagnant water, water smelling of chlorine, or water near the food bowl may be refused even if the animal is thirsty.

Signs of Dehydration in Cats

Since cats hide discomfort well, it's important to be aware of subtle signs:

  • Dry or sticky gums
  • Less elastic skin (when gently pulled, it takes time to return to its place)
  • Sunken or dull eyes
  • Lethargy and decreased interest in playing
  • Dark urine or less frequent visits to the litter box
  • Dull or unkempt coat

If you notice these signs, offer fresh water immediately and contact your vet if the situation doesn't improve.

Tips to Increase Water Intake in Summer

1. Running water fountains. Cats prefer moving water; it's an instinct related to spring water in nature, which they associate with fresher and safer water. A cat water fountain can significantly increase daily consumption.

2. Multiple water points around the house. Place bowls in different locations, away from the litter box and food bowl. The more options available, the more likely the cat is to drink.

3. Prefer wide, shallow bowls. Cats hate their whiskers touching the edges of the container. A wide, shallow bowl is much more inviting.

4. Always fresh and clean water. Change the water at least once a day. On very hot days, you can add one or two ice cubes to maintain a pleasant temperature.

5. Introduce wet food. Wet food contains between 70% and 80% water, making it an excellent way to increase hydration without relying on the cat's willingness to drink. In summer, consider replacing part of the dry kibble with wet food.

6. Gels for cats. There are specific broths for cats (salt-free, onion-free, garlic-free) that can be offered as a liquid supplement and are very palatable.

7. Keep the house cool. Ensure the cat has access to cool, ventilated rooms. Close the blinds during the hottest hours and always leave a screened window for air circulation.

Risks of Prolonged Dehydration

In cats, chronic dehydration is often associated with kidney and urinary problems – two of the most common diseases in this species. Summer is a period of higher risk, especially for adult or senior cats, animals with already diagnosed kidney disease, or cats fed exclusively dry kibble.

Heatstroke, although less common in cats than in dogs, can also occur, mainly in indoor animals without access to cool areas, long-haired cats, or brachycephalic breeds like the Persian or Exotic Shorthair.

Most Vulnerable Cats

Some cats require extra attention during the summer:

  • Senior cats: their sense of thirst diminishes with age
  • Cats with kidney or urinary disease: already have a higher baseline risk
  • Obese cats: greater difficulty regulating temperature
  • Long-haired breeds: Persian, Maine Coon, Ragdoll
  • Brachycephalic breeds: Persian, Exotic Shorthair
  • Cats fed exclusively dry kibble

Conclusion

Summer demands special attention to cat hydration, precisely because their natural instinct doesn't lead them to drink as much as they need. Small changes in routine can make a huge difference to your feline's well-being during the warmer months.

Prevention is always the best approach. A well-hydrated cat is a healthier, more active, and happier cat.