Short answer: cats evolved from desert ancestors that got most of their water from prey, so they have a weak thirst drive and often drink less than they need, especially on a dry-food diet. Most “my cat won’t drink” problems are fixed by changing how water is offered: moving the bowl away from food, using a wide shallow bowl or a running fountain, adding more water stations and adding wet food. But a sudden change in drinking, up or down, is a reason to see a vet.
How much water does a cat need?
A commonly used guide is roughly 40–60 ml of water per kg of body weight per day, from all sources combined. A 4 kg cat needs about 160–240 ml a day. Wet food is around 75–80% water, so a cat eating mostly wet food may drink very little from the bowl and still be well hydrated. A cat on dry kibble (about 10% water) has to drink almost all of it.
In north Indian summers, when indoor temperatures pass 35°C, cats lose more water and need more.
Signs your cat may be dehydrated
- Skin tenting: gently lift the skin between the shoulder blades. It should spring back immediately; slow return suggests dehydration.
- Dry or sticky gums.
- Lethargy, hiding, loss of appetite.
- Sunken-looking eyes.
- Small, hard stools or constipation, or very small, strong-smelling urine clumps in the litter box.
See a vet the same day if your cat hasn’t drunk or eaten for 24 hours, is vomiting, or is straining in the litter box (especially male cats, where a urinary blockage is an emergency).
Why your cat isn’t drinking: common reasons
1. The bowl is next to the food
Many cats instinctively avoid water close to where they eat, possibly because in the wild, water near a kill could be contaminated. Put the water bowl at least a metre or two away from the food, ideally in a different room.
2. Whisker discomfort
Deep, narrow bowls make whiskers brush the sides, which some cats dislike. Try a wide, shallow ceramic or steel bowl filled to the brim.
3. Stale or warm water
Water that has sat out all day in summer heat picks up dust and hair and tastes flat. Cats are fussy about this. Change water at least twice a day and wash the bowl daily; plastic bowls can hold odours, so ceramic, glass or steel are better.
4. They prefer running water
Plenty of cats drink from taps, shower trays or glasses on the bedside table but ignore a still bowl. Moving water is cooler, better oxygenated and catches their attention. That’s exactly what a cat water fountain recreates, and for many cats it’s the single change that increases drinking.
5. Too few water stations
One bowl in the kitchen isn’t enough, especially in a large house or with several cats. Place two or three water stations around the house, including one on each floor and one near where your cat naps.
6. Stress or a change at home
A move, new pet, guests, renovation or festival noise can all reduce eating and drinking. Give your cat quiet spaces and keep water somewhere calm.
7. A medical problem
Dental pain, nausea, kidney disease, urinary problems and fever can all change drinking. If your cat’s drinking changes suddenly, or it’s drinking a lot more than usual (which can point to kidney disease, diabetes or thyroid problems in older cats), book a vet visit.
How to get your cat to drink more water
- Add wet food. Even one wet meal a day makes a big difference to total water intake. You can also add a spoonful of warm water to wet food.
- Use a fountain. A quiet, filtered fountain keeps water moving and fresh. Clean it weekly and change the filter as the maker recommends.
- Separate food and water. Different spots, ideally different rooms.
- Go wide and shallow. Fill to the top so your cat doesn’t have to dip its face in.
- Multiple stations. At least one more than the number of cats.
- Keep it cool in summer. Add an ice cube or two to the bowl on hot days and keep water out of direct sunlight.
- Try ice-cube treats or low-sodium chicken broth (no onion or garlic) as an occasional encouragement.
Is a cat water fountain worth it?
If your cat drinks from taps or ignores its bowl, usually yes. Things to look for:
- Capacity of around 2 litres, so it doesn’t run dry in a day with one or two cats.
- A quiet pump, because noisy fountains scare some cats.
- A replaceable filter to catch hair and debris.
- Easy to take apart, since it needs cleaning every week.
Our 2-litre automatic cat water fountain ticks these boxes. For walks with a dog, the same principle applies on the go with a portable dog water bottle. Browse the rest of our pet supplies, shipped from Panchkula with free shipping and Cash on Delivery across India.
Frequently asked questions
Is it normal for a cat to not drink water all day?
For a cat eating mostly wet food, drinking very little can be normal. For a cat on dry food, a full day without drinking is a concern, especially with other signs like lethargy or not eating.
Can cats drink milk instead of water?
No. Most adult cats are lactose intolerant, and milk can cause diarrhoea, which makes dehydration worse.
Do cats drink more in summer?
They should. If your cat isn’t drinking more during hot weather, add extra water stations, ice cubes and wet food.
This guide is general information, not veterinary advice. If you’re worried about your cat, please contact your vet.