What should a baby wear at 40°F
At 40°F a toddler (1–3 years) is comfortable in: long-sleeve top, pants, fleece, light jacket, winter hat, mittens, winter boots. Newborns need one layer more, preschoolers one layer less.


What to wear at 40°F: layers by age
Newborn (0–3 months)
- Base layer
- Bodysuit, Long-sleeve top
- Warm layer
- Fleece
- Outer layer
- Snowsuit
- Head
- Winter hat
- Hands
- Mittens
- Shoes
- not needed
- Extras
- not needed
Baby (3–12 months)
- Base layer
- Bodysuit, Long-sleeve top, Pants
- Warm layer
- Fleece
- Outer layer
- Puffer jacket, Snow pants
- Head
- Winter hat
- Hands
- Mittens
- Shoes
- Winter boots
- Extras
- not needed
Toddler (1–3 years)
- Base layer
- Long-sleeve top, Pants
- Warm layer
- Fleece
- Outer layer
- Light jacket
- Head
- Winter hat
- Hands
- Mittens
- Shoes
- Winter boots
- Extras
- not needed
Preschooler (3–6 years)
- Base layer
- Long-sleeve top, Pants
- Warm layer
- Fleece
- Outer layer
- Light jacket
- Head
- Winter hat
- Hands
- Gloves
- Shoes
- Sneakers
- Extras
- not needed
Weather adjustments
How the outfit changes for a toddler (1–3 years).
Rain: raincoat and rain boots
Add: raincoat
Take off: light jacket
Wind: scarf and a wind-blocking jacket
Add: scarf
Strong sun: sun hat and sunglasses
Add: sunglasses
Apply kids’ sunscreen to exposed skin
Active play: one layer lighter
Take off: fleece
More details
At 40°F a toddler (1–3 years) is usually comfortable in: long-sleeve top, pants, fleece, light jacket, winter hat, mittens, winter boots. This is a guide for a calm walk in dry weather without strong wind. A newborn under three months needs one layer more: bodysuit, long-sleeve top, fleece, snowsuit, winter hat, mittens. A baby under one: bodysuit, long-sleeve top, pants, fleece, puffer jacket, snow pants, winter hat, mittens, winter boots. A preschooler can go lighter: long-sleeve top, pants, fleece, light jacket, winter hat, gloves, sneakers.
At 30°F the outfit gains: bodysuit, cardigan, puffer jacket, snow pants, gloves. When it warms up to 50°F, you can take off: fleece, mittens, winter boots. In the rain, bring: raincoat. In strong wind, add: scarf. A high UV index is the time for: sunglasses. Apply kids’ sunscreen to exposed skin. If your child runs around a lot, remove: fleece.
The best guide is how your child feels: a warm, dry neck. These tips do not replace your pediatrician’s advice.
Weather in your city
Type a city or use your location — we’ll show the layers for your child.
Questions and answers
Is a hat needed at 40°F?
Check the Head row in the table for your child’s age.
What changes if it is windy at 40°F?
Add a scarf and a wind-blocking jacket.
Which shoes does a toddler need at 40°F?
For a toddler (1–3 years) at 40°F: winter boots. In the rain, rain boots are better.
What should a baby under one wear at 40°F?
A baby aged 3–12 months at 40°F: bodysuit, long-sleeve top, pants, fleece, puffer jacket, snow pants, winter hat, mittens, winter boots.
Is this medical advice?
No. It is a clothing guide; watch how your child feels and follow your pediatrician’s advice.
Where can I get advice for my weather?
In the Layer app: it reads temperature, wind, humidity and UV and suggests layers by age.
Other temperatures
Pick a temperature to see the layers for every age.
What should my kid wear today?
Layer suggests layers from the forecast for your city.
Not medical advice

