When should children wear a winter jacket? A guide to temperatures and changeable weather
Short answer: There's no set temperature at which all children should switch to a winter jacket. Consider the temperature, wind, rain, activity level, and how long your child will be outside. In mild autumn weather, a transitional jacket is often enough, while colder, windier days may call for a warmer winter jacket and suitable layers underneath.
As summer draws to a close and mornings get cooler, many parents ask the same question: When should children actually start wearing a winter jacket?
Should the winter jacket already come out at 10 degrees? Is a transitional jacket enough at 5–10 degrees? And how can you tell whether your child is cold or actually wearing too many clothes?
There's no single temperature that's right for all children. Wind, rain, activity level, and how long the child spends outdoors also play a major role.
Here's a practical guide to choosing between a transitional jacket, lightweight down jacket, and winter jacket as the temperature starts to drop.
When is it time for a winter jacket?
As a simple rule of thumb, you can use:
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Above 15°C: A light jacket or sweater is often enough.
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10–15°C: A transitional jacket and, if needed, an extra layer are often a good fit.
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5–10°C: A warm transitional jacket or lightweight down jacket may be suitable.
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Around 5°C and below: A warmer winter jacket typically becomes more suitable.
The temperatures are guidelines. Wind, rain, and dampness can make 8°C feel significantly colder, while an active child on a sunny day can get warm even at relatively low temperatures.
What should children wear at 10–15°C?
At 10–15°C, a heavy winter jacket will often be too warm, especially for children who run, cycle, or play outside a lot.
Layering often works better here:
Long-sleeved top → thin knitwear or fleece → transitional jacket
If the temperature rises during the day, it's easy to take off a layer.
If you're wondering why a transitional jacket is practical at this time of year, you can read our guide The importance of transitional jackets for children: A guide for parents.
You can also read more about choosing outerwear for Denmark’s changeable weather in Choose a transitional jacket and softshell jacket to get your child ready for the Danish weather.
What should children wear at 5–10°C?
When the temperature drops to around 5–10°C, the choice becomes more personal.
On a dry, windless day, a warm transitional jacket may still be enough for an active child. If it’s cold, windy or damp, a lightweight down jacket may be a better choice.
A lightweight down jacket can be practical during the transitional period because it provides extra insulation without necessarily feeling as heavy as a thick winter jacket.
At Lilla Villa, you can browse our selection of down jackets and transitional jackets for children.
When should you bring out the warm winter jacket?
When the temperature approaches around 5°C or lower, a warmer winter jacket typically becomes more relevant.
But the temperature alone shouldn’t determine your choice. Also consider:
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How long will your child be outdoors?
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Will your child be running and playing or sitting still?
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Is it windy?
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Is the weather dry or damp?
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Is your child already wearing several warm layers?
A child who cycles to school and plays actively during breaks generates more body heat than a child who spends more time standing still outdoors.
Transitional jacket, lightweight down jacket or winter jacket?
The Danish autumn makes it practical to have more than one option in your wardrobe.
The transitional jacket is suitable for milder autumn days and allows you to add or remove layers.
The lightweight down jacket can be a good in-between option when the transitional jacket starts to feel too cool, but the heavy winter jacket is still too warm.
The winter jacket really comes into its own on cold days, when your child needs more insulation and protection.
That’s why you don’t need to choose a specific date to pack away the transitional jacket. In September, October and sometimes further into autumn, both jackets can easily be worn depending on the day’s weather.
Is a down jacket a good choice for children?
One of the advantages of down is that it can provide good insulation for its weight. This is practical for children, who still need to be able to move freely while playing and being active outdoors.
When choosing a winter jacket, however, you shouldn't only consider the filling. Fit, freedom of movement, length, hood, fastening and how the jacket will be used in everyday life also matter.
If you'd like to read more about what to look for when choosing a winter jacket, read our guide to winter jackets and down jackets for children.
You can also go directly to all down jackets and winter jackets for children at Lilla Villa.
Examples of different types of down jackets
Needs change throughout autumn and winter, so different types of jackets may be suitable for different periods.
For colder days, a shorter puffer style can be practical if your child needs freedom of movement at school and during play.
If your child needs more coverage around the hips and thighs, a longer winter jacket may be a good option. See the current down jackets and winter jackets for children and compare the specific style's length, filling and fit.
When choosing a style, always check the product description, size and features of the individual jacket.
How can you tell if your child is too warm?
A very warm jacket isn't automatically the best choice.
If the child is sweating or feels very hot and damp around the nape of the neck or upper back, it may be a sign that they are wearing too many clothes.
So feel the nape of the neck or upper back after outdoor activity. The child should feel warm, but not very hot or damp.
Hands can feel cool even if the rest of the body is at a comfortable temperature, so don't judge based only on the hands.
Layering is especially practical in autumn
September and October can bring cold mornings and significantly milder afternoons.
Layering makes it easier to adjust clothing throughout the day.
On a mild autumn day, for example:
Long-sleeved top → thin fleece or knitwear → transitional jacket
When the weather gets colder:
Long-sleeved top → possibly a mid-layer → down jacket or winter jacket
This makes it easier for the child to stay at the right temperature without being wrapped up more than necessary.
How to care for your child's down jacket
Once the winter jacket is in use, proper care is important to maintain it.
Down jackets require a little more care when washing and especially drying, so the down filling doesn't end up clumping together.
Read our guide Keep your child's down jacket clean and fresh: Expert tips for washing and drying if the jacket needs washing.
In short: When should children wear a winter jacket?
There is no single date or temperature that works for every child.
At 10–15°C, a transitional jacket is often a good starting point.
At 5–10°C, a warm transitional jacket or a lighter down jacket may be suitable, depending on the wind, weather, and the child's activity level.
When the temperature drops to around 5°C and below, a warmer winter jacket typically becomes more appropriate.
The most important thing is to combine the weather forecast with the child's activity level and regularly check whether they're comfortable.
This makes it easier to get through Denmark's changeable autumn and winter weather without the child getting too cold or too warm.
More guides to children's jackets
Would you like to read more about choosing outerwear for children?
- See all practical guides
- Browse our selection of children's jackets
- What should children wear under a winter jacket?
- Is a down jacket warm enough for children?
- How big should a winter jacket for children be?
Safety and temperature
When it comes to a baby's sleep, it's important to consider the child's actual temperature and the specific sleeping bag's instructions. Feel the child's chest, back, or neck, and remove a layer if their skin feels warm or damp. Their hands and feet may feel cooler even if the child isn't necessarily cold.
If you're unsure about temperature, sleep, or clothing, medical advice should take precedence over general product guides. See, for example, Sundhed.dk's advice for newborns.