A baby holding a cup for the first time can turn a simple sip of water into a full performance; some goes into the mouth, some onto the bib, and some mysteriously ends up on the floor. But before offering that first sip, parents often wonder: when should babies start drinking water?
For most healthy babies, water is introduced around 6 months, when complementary foods are started. Before that, breast milk or infant formula generally provides the fluids they need. WHO recommends exclusive breastfeeding for the first six months, with complementary foods introduced at around 6 months.
When Can Babies Start Drinking Water?
For most babies, the answer to when can babies start drinking water is around 6 months, alongside the introduction of solid foods.
At this stage, water is not meant to replace breast milk or infant formula. Milk remains an important source of nutrition during the first year. Water can be offered in small sips, particularly around mealtimes.
This is also a good time to begin teaching your baby how to drink from a cup. A small Baby sipper cup can give little hands an easy way to practise sipping. The goal at first is not to make the baby drink a large amount. It is simply to become comfortable with sipping.
Every baby develops at their own pace, so a paediatrician can provide individual guidance if there are feeding, growth or medical concerns.
Also Read: Straw Sipper vs Spout Sipper: Which Is Better for Babies
Why Do Babies Under 6 Months Usually Not Need Water?

For babies younger than 6 months, breast milk or properly prepared infant formula generally provides the fluid they need.
WHO recommends exclusive breastfeeding for the first six months, meaning no additional foods or liquids, including water, are given unless medically indicated.
For babies who are formula-fed, the focus remains on appropriately prepared infant formula rather than additional water. A smaller baby feeding bottle can suit the early feeding stage.
So, if a 3-month-old looks interested in your glass of water, there is no need to assume they are asking for a sip. Babies are curious about practically everything adults hold. Your phone, spoon, water bottle, and TV remote may all receive the same level of interest.
How Much Water Can a Baby Drink After 6 Months?
Parents often ask how much water should a baby drink after starting solids.
Around 6 months, water is generally offered in small amounts rather than as a major source of hydration. The American Academy of Pediatrics suggests around 4–8 ounces (about 120–240 ml) of water per day for babies around 6 months to 1 year, while breast milk or formula continues to provide much of their fluid intake.
There is no need to force a particular amount. Start with a few sips during meals and let the baby's intake gradually increase as they become more comfortable with water and solid foods.
The amount can vary depending on the baby's diet, milk intake, activity, and other factors.
What Are the Benefits of Introducing Water After 6 Months?
The main purpose of introducing water to baby after 6 months is to help them become familiar with drinking water while they begin eating solid foods.
A few small sips with meals can:
- Help the baby practise drinking from a cup.
- Build familiarity with plain water instead of sweetened drinks.
- Complement fluids received from breast milk or formula.
- Support the transition towards drinking from a cup as the baby grows.
- Help establish simple drinking habits early.
Water also becomes more relevant as solid food intake increases. WHO recommends complementary feeding from around 6 months while continuing breastfeeding.
How Should You Give Water to Your Baby?
Once your baby is ready for solids, offer small sips of water with meals rather than expecting them to finish a full cup.
Around 6 months, parents can start introducing a Baby sipper cup or another suitable cup designed for babies. The NHS recommends introducing a cup around this age and offering sips of water with meals. It also notes that open or free-flow cups can help babies learn to sip.
A sipper can be useful when your baby is still learning hand control. Choose one that is easy to hold, simple to clean, and appropriate for the child's stage.
A Baby feeding bottle can continue to be used for breast milk or formula according to the baby's feeding routine, but water can gradually be introduced through a cup.
What Type of Water Is Safe for Babies?
Water offered to babies should be clean and safe for drinking. The exact preparation depends on the baby's age and the safety of the local water supply.
For babies around 6 months and older who have started solids, NHS guidance states that drinking water does not generally need to be boiled first when using a safe tap-water supply.
For younger babies, water should not be routinely offered. Formula should also always be prepared according to the manufacturer's instructions rather than diluted with extra water.
Avoid adding sugar, honey, juice or other sweeteners to your baby's drinking water. Plain water is the better choice.
Can Babies Drink Water Before 6 Months?
Generally, healthy babies under 6 months should not be given extra water.
WHO states that babies who are exclusively breastfed do not need water during their first six months, including during hot weather.
Hot weather can make parents understandably nervous about dehydration. However, for a breastfed baby under 6 months, offering more frequent breastfeeds is generally recommended rather than giving additional water.
Formula-fed babies may have different needs in particular circumstances. Parents should ask a healthcare professional before giving extra water to a baby under 6 months, especially during illness, very hot weather, or when there are concerns about hydration.
How to Help Your Baby Get Used to Drinking Water
The first few attempts may be more entertaining than successful. That is normal.
Try these simple approaches:
- Offer a few sips with meals.
- Let your baby hold the cup when appropriate and safe.
- Use a cup that is easy for small hands to grip.
- Keep offering water without forcing it.
- Let your baby watch family members drink plain water.
- Keep water separate from sweet drinks so your baby becomes familiar with its natural taste.
- Expect spills and keep a clean cloth or Baby wipes nearby.
Do not turn drinking water into a battle. If your baby refuses it today, try again at another meal.
Mee Mee Sipper Cups for Babies

Mee Mee offers several options for babies and toddlers who are learning to drink independently. The current collection includes different sizes and designs, so parents can choose according to their child's stage and routine.
The Mee Mee 2 in 1 Spout & Straw Sipper Cup, 150 ml is a compact option with a soft silicone spout and straw. Its smaller capacity can suit parents looking for a manageable cup for early sipping practice.
For families looking for a little more feeding options, the Mee Mee 2 In 1 Baby Feeding Bottle With Detachable Spoon (125ml)provides both nipple and detachable spoon options in one. It is best for feeding juices, semi-solid foods, and other liquids quickly and easily.
There is also a 300 ml 2-in-1 Anti-Spill Sipper Cup, designed with a soft silicone spout and straw. Larger options can be useful as children become more comfortable carrying and drinking from their own cup.
For older babies and children who are frequently out of the house, Mee Mee also has insulated stainless-steel water bottles, including the Little Shark Smart-Temp 2-in-1 Sipper & Spout Bottle.
When choosing among Baby products, focus on your child's age, grip, drinking ability, cup size, and how easy the cup is to clean. The fanciest cup is not necessarily the one your baby will happily use.
Conclusion
So, when to give baby water? It is usually around 6 months, when complementary foods are introduced. Before this age, healthy breastfed babies generally do not need additional water, and breast milk or appropriately prepared formula provides their fluid needs.
After 6 months, start with small sips, preferably around meals, while continuing breast milk or formula. A suitable cup can help your baby practise drinking and gradually become more independent.
There is no need to rush the process. One day your baby may take two perfect sips. The next day, they may turn the cup upside down and stare at you as if you personally invented gravity. Both are part of learning.
FAQs
When should babies start drinking water?
Most babies can start having small sips of water around 6 months, when complementary foods are introduced. Breast milk or infant formula remains an important source of fluids during the first year.
Can a 4-month-old baby drink water?
Healthy babies generally should not be given extra water at 4 months. Breast milk or properly prepared infant formula provides their fluid needs. Speak with a paediatrician if there is a specific medical concern.
How much water should a 6-month-old baby drink?
Around 6 months, small amounts can be offered with meals. The AAP suggests roughly 4–8 ounces (120–240 ml) per day around 6 months to 1 year, while milk remains important.
Can babies drink water before starting solids?
Water is generally not needed before solids are introduced. WHO recommends exclusive breastfeeding for the first six months, including no additional water, unless medically indicated.
What is the best cup for a baby to drink water from?
A small open, free-flow or age-appropriate sipper cup can be used as babies learn to drink. The right choice depends on the baby's developmental stage, grip, and ability to sip.
Can babies drink water in hot weather?
Babies under 6 months generally do not need extra water, even in hot weather. Breastfed babies may feed more frequently. After 6 months, small amounts of water can be offered.
When can babies start using a sipper cup?
A sipper or other suitable cup can generally be introduced around 6 months, when babies begin complementary foods. Start with small sips and allow the baby time to learn the new skill.