When Do Babies Start Waving? Ages, Gestures, and Red Flags

Most babies start waving somewhere between 7 and 12 months, with many landing around 9 months. The CDC places the waving milestone on its 15-month checklist, which is a deliberate choice that confuses a lot of parents.

Waving is one of the milestones parents remember, because it is the first moment a baby clearly does something social on purpose and aimed at you. It also generates a specific kind of anxiety, because different sources give wildly different ages.

The gap between what you read on a milestone chart and what your friend’s baby did at 8 months is not a contradiction. It comes from a deliberate change in how milestones are defined, and understanding it will save you a lot of unnecessary worry.

When Do Babies Start Waving?

Waving usually emerges between 7 and 12 months. Many babies produce a first recognizable wave around 9 months, often as a clumsy whole-arm flap rather than the neat hand motion adults picture.

Early waves rarely look like goodbye. Expect an open hand opening and closing, an arm raised and swung, or a wave delivered enthusiastically several seconds after the person has already left. The social intent arrives before the motor precision does.

Why the CDC Says 15 Months

This is the part that trips people up, and it is worth explaining properly because it changes how you should read every milestone chart.

In 2022, the CDC and the American Academy of Pediatrics revised the developmental milestone checklists. The old checklists used the 50th percentile, meaning the age at which about half of babies could do something. The revised checklists use roughly the 75th percentile: the age by which about 75 percent or more of children would be expected to show the skill.

The reasoning was practical. A 50th percentile milestone means half of all normally developing babies fail it, which generates enormous anxiety and a lot of unnecessary referrals, while also making it easy to dismiss genuine delays as normal variation. A 75th percentile milestone is a clearer signal: if your child has not reached it, that is a reasonable prompt for a conversation rather than a coin flip.

For waving specifically, the evidence showed that 50 percent of children wave by 11 months and 90 percent by 16 months. The experts placed it on the 15-month checklist as the most appropriate fit.

So the correct way to read it: 15 months is not when babies typically wave. It is the age by which most babies wave, and past which not waving is worth a conversation.

How Waving Develops

Waving is not a single skill appearing fully formed. It requires several things to come together: noticing that a gesture produces a response, controlling the arm and hand well enough to imitate it, and understanding that gestures carry meaning between people.

Waving usually arrives alongside a cluster of other gestures. Raising arms to be picked up often comes first, then clapping, then waving, then pointing, then showing and giving objects to share attention. It is the cluster, not any single gesture, that matters developmentally.

Why Gestures Matter More Than People Realize

Gestures are one of the strongest early predictors of later language development, often more informative than how many words a baby says at 12 months.

The reason is that gestures demonstrate the cognitive foundation language sits on. A baby who waves understands that a signal can be directed at another person to communicate something. A baby who points is directing someone else’s attention to a shared object, which is a genuinely sophisticated social act.

This is why speech-language pathologists pay close attention to gesture use in the second year. A toddler with few words but a rich range of gestures is generally in a different position from a toddler with few words and few gestures.

• Reaching up to be picked up, typically 6 to 9 months.
• Clapping, typically 8 to 12 months.
• Waving, typically 7 to 12 months, on the CDC 15-month checklist.
• Pointing at something to request it, typically 9 to 12 months.
• Pointing to share interest, typically 12 to 15 months. Developmentally significant.
• Showing and giving objects to another person, typically 10 to 14 months.
• Shaking head for no, nodding for yes, typically 13 to 18 months.

How to Encourage Waving

You cannot rush a milestone, and there is no need to drill it. But gestures are learned socially, so more natural opportunities help.

• Wave every single time someone arrives or leaves, and make it visible and unhurried.
• Pair the word with the gesture: say ‘bye-bye’ while waving, consistently, so the two link.
• Wait after you wave. Leave a clear pause for your baby to respond. Adults tend to move on far too fast.
• Try hand-over-hand gently, guiding their hand into a wave, then letting them try alone.
• Wave to things, not just people: the bath water going down, the dog, the car pulling away.
• Use mirrors and video calls, where babies can see the gesture and their own hand at once.
• Respond warmly to any attempt, even a vague arm swing at the wrong moment. Reinforcement matters more than accuracy.

Do not turn it into a performance for relatives. Babies frequently refuse to produce a new skill on demand, particularly in front of an expectant audience, and pressure makes it less likely rather than more.

When Not Waving Might Signal Something

A baby who is not waving but is doing plenty of other gestures, making eye contact, babbling, and engaging socially is usually just taking their own route. Waving alone is not a diagnostic test.

What matters more is the overall picture. A pattern of limited gesture use, reduced social engagement, and little response to their name carries more weight than any single missing skill.

• No waving, clapping, or pointing at all by 15 months.
• Not responding to their own name by 12 months.
• Little or no babbling, or babbling that has stopped.
• Limited eye contact or difficulty following your gaze.
• No interest in sharing attention, such as looking where you point.
• Loss of any skill previously present, including a gesture, word, or social behavior.

That last point deserves emphasis. Regression, meaning losing a skill your child previously had, is always worth prompt attention regardless of age or which skill it is.

If your baby was born prematurely, use corrected age rather than birth age until about age 2. A baby born two months early should be assessed against a timeline two months behind their calendar age, and that adjustment matters a great deal in the first year.

When to Talk to Your Pediatrician

Bring it up at your next visit, or sooner, if any of these apply.

• Your baby is not waving, clapping, or pointing by 15 months.
• Your baby does not respond to their name by 12 months.
• There is little babbling, or babbling has decreased.
• Your baby has lost a gesture, word, or social skill they previously used.
• Eye contact is limited or your baby rarely follows your gaze or your point.
• You have a persistent instinct that something is different. Parental concern is meaningful clinical information.

Developmental surveillance happens at routine well-child visits, and formal screening is recommended at 9, 18, and 30 months. You do not have to wait for the next scheduled visit if you are worried.

Early intervention services are available in every US state and do not require a diagnosis or a doctor’s referral to request an evaluation. If you have concerns, you can contact your state’s early intervention program directly. Access is free of charge for the evaluation.

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