What should a newborn wear outside?
4 min read
Quick answer
A newborn should wear one more layer outside than you are wearing, as the NHS suggests: usually a vest and sleepsuit plus a cardigan, then a pramsuit, hat and mittens when it is cold. In warm weather use a single cotton layer, a sun hat and full shade, and take extra layers off indoors.
- One more layer than you are wearing
- Thin layers you can peel off, not one thick outfit
- Under 6 months: shade first, no direct sun and no sunscreen
- Hats and extra clothing off as soon as you are indoors
Why newborns need extra care outside
The NHS points out that young babies struggle to keep their body temperature steady. A newborn cannot tell you they are cold or hot, and cannot take off a layer, so it is up to you to dress them for the weather and check them.
That does not mean wrapping them up as much as possible. Overheating is a risk too, and the NHS links it to SIDS. The aim is comfortable: warm and dry on the back of the neck, without sweating.
What should a newborn wear outside?
Start with the NHS rule of thumb: one more layer than you are wearing. If you are comfortable in a T-shirt and jumper, a newborn needs a vest, a sleepsuit and a cardigan. Then match the outfit to the temperature:
- 10–14°C (50–57°F): vest, sleepsuit, warm cardigan, pramsuit, hat and mittens
- 15–18°C (59–64°F): vest, sleepsuit and a cardigan or light jacket
- 19–21°C (66–70°F): vest and light sleepsuit, thin cardigan to hand
- 22–23°C (72–73°F): short-sleeved vest and light trousers or a romper, sun hat
- 24–26°C (75–79°F): single layer of lightweight cotton, wide-brimmed hat, shade
- 27–30°C (81–86°F): one thin cotton vest or romper, wide-brimmed hat, full shade
How to check your newborn is not too hot or cold
Feel the back of your baby's neck, their chest or their tummy. Warm and dry means they are dressed right. Sweaty or hot means take off a layer of clothing or bedding. Cool hands and feet on their own are normal, so do not add layers just because fingers or toes feel cold.
Check the back of the neck or tummy a few minutes after you go out and each time you stop. If your baby was born prematurely or had a low birthweight, ask your health visitor or neonatal team how to dress them, and follow safer sleep advice for a year from their due date, as the NHS advises.
Pram, sling and car seat for a newborn
In the pram, a footmuff or lightweight cellular blanket over their legs works in cool weather. In summer, use a clip-on parasol or sunshade and never cover the pram with a muslin or blanket, which can make your baby overheat (NHS).
In a sling or carrier, your body warmth counts as a layer, so a newborn needs less than in the pram. In the car seat, take off pramsuits and padded coats before you strap them in, then lay a blanket over the buckled harness (AAP).
Sun and hats for newborns
The NHS advises no direct sun for babies younger than 6 months, and does not recommend sunscreen for them either. Use shade, the pram hood, a clip-on sunshade and light clothes that cover the skin.
A wide-brimmed sun hat protects the head, ears and neck in summer, and a soft hat helps on cold days. Once you are indoors or in a warm car, take hats off straight away, even if your baby wakes (NHS), and never let your baby sleep in a hat indoors.
This is general dressing guidance, not medical advice. If you are worried your baby is unwell, call NHS 111 or your GP. In an emergency, call 999 or your local emergency number.
Sources
We check this guide against these sources. It is general information, not medical advice: speak to your health visitor, GP or paediatrician about your own baby.
Questions parents ask
Does a newborn need a hat outside in summer?
A wide-brimmed sun hat is useful in summer to shade the head, ears and neck, but it does not replace shade. For babies younger than 6 months, the NHS advice is to keep them out of direct sun. Take the hat off once you are indoors, and do not use a warm hat on a hot day.
How many layers should a newborn wear outside?
The NHS rule of thumb is one more layer than you are wearing. On a cool day that might be a vest, sleepsuit, cardigan and pramsuit; on a mild day a vest and sleepsuit; on a hot day a single cotton layer. Several thin layers are easier to adjust than one thick one.
Can I take my newborn out in the cold?
Yes, with the right layers. Dress them in a vest, sleepsuit, cardigan and pramsuit with a hat and mittens, keep them out of strong wind and rain, and keep outings shorter at first. Check the back of the neck, and take extra layers off once you are back inside.
Can a newborn wear a snowsuit in the car seat?
No. The AAP advises against bulky coats and snowsuits under the car seat harness, because the padding squashes in a crash and leaves the straps loose. Dress your newborn in thin layers, buckle them in snugly, then lay a blanket or the snowsuit over the straps.