How Much Water Does a 19–24-Month-Old Need?

How much water does a 19–24-month-old need?

There is no one plain-water target that is right for every toddler. Needs change with the foods and drinks your child has, the weather, activity, and health.

NHS guidance is to offer sips of water with meals and practise using an open or free-flow cup. It does not give a fixed daily volume of water for every toddler on this page.

Offer water regularly and consider your child’s usual drinks, foods, activity, the weather, and health. Ask your health visitor or GP if your toddler has an individual fluid plan.

What counts toward total water?

Water in foods and drinks contributes to hydration. Milk and breast milk also provide fluid, while fruits, vegetables, soups, and other foods contain water.

A total-water estimate is different from the amount of plain water poured into a cup. Do not use a number for total water as a required amount of drinking water.

If a clinician has recommended a fluid limit or special plan because of a health condition, follow that advice rather than general guidance.

When should I offer water?

Offer plain water with meals and snacks, and make it available during active play. A cup at the table gives your toddler a chance to practise drinking independently.

Offer more often in hot weather or after energetic play, without pressuring your child to finish a set amount. Breastfeeding can continue alongside complementary foods if that is your family’s plan.

Choose water rather than sweetened drinks for routine thirst. Keep drinking opportunities calm and supervised, especially when your toddler is learning to use a cup.

Does my toddler need juice or sweet drinks?

No. Fruit juice is not needed for hydration, and whole fruit offers fibre as well. In the US, CDC notes that juice after 12 months is unnecessary and advises limiting it; children under 2 should avoid added sugars.

NHS guidance recommends water or unsweetened milk as everyday drinks and advises against sugary drinks such as squash and fizzy drinks for young children.

Do not replace water with sports, energy, sweetened, or caffeinated drinks. If your child has a medical nutrition plan, check before changing their drinks.

Can hot weather or illness change needs?

Yes. Heat, vigorous activity, fever, vomiting, and diarrhoea can change fluid needs or increase fluid loss. Offer small, frequent drinks when your child is awake and able to drink.

If vomiting or diarrhoea is ongoing, ask a clinician or pharmacist whether an oral rehydration solution is appropriate. Do not rely on plain water alone to treat significant fluid loss.

Babies and toddlers can become unwell quickly. Get prompt medical advice if your child is drinking much less, has substantially fewer wet nappies or urinations, or seems increasingly unwell.

What are signs of dehydration?

Possible signs include a dry mouth, fewer tears, unusually little urine, and low energy. No single sign confirms dehydration, so consider the whole picture and how your child is acting.

Seek prompt medical advice if your child cannot keep fluids down, urinates much less than usual, or is becoming unusually sleepy or weak.

Get urgent care if your child is difficult to wake, has severe breathing difficulty, or appears seriously unwell. Follow local emergency guidance.

What if my child seems thirsty all the time?

A thirsty day after heat or active play can be expected. Offer water and observe whether the pattern settles when conditions return to normal.

Ongoing excessive thirst together with much more frequent or larger amounts of urine should be discussed with a clinician. Do not assume it is simply a habit.

Note when the thirst happens and any other changes, such as night waking to drink, tiredness, or weight change. This can help the clinician assess what is going on.

Which cup should I use?

At this age, many children can practise with an open cup or a straw cup. Choose one your toddler can manage safely, and expect some spills while the skill develops.

NHS guidance introduces cups from around 6 months and recommends an open or free-flow cup to practise sipping. US families can also use a cup that supports safe practice and suits the child.

Keep hot drinks out of reach and supervise your toddler while drinking. Use a stable seat for meals rather than letting your child drink while running around.

What can I do today?

Offer water with meals and snacks and keep a suitable cup accessible during play. Offer extra opportunities after outdoor activity or in hot weather.

Think about all drinks and water-containing foods rather than trying to make your toddler finish a fixed amount of plain water.

If thirst is persistent, urine output drops, or your child seems unwell, contact a health professional for advice.

A simple note of drinks, activity, and wet nappies or toilet trips can help you describe a pattern if you contact a clinician.