If you'll be outside for long periods of time in very cold climates, your baby may need a very thick, warm coat or snowsuit. For most climates, and for quick trips in and out of the cold, a thinner baby coat will do.

Does a newborn baby need a snowsuit?

Babies should have at least as many layers as their parents. A thin onesie, then a few long-sleeved shirts and pants, then a sweater or a sweatshirt, and coat or a snowsuit is a good start, according to Dr. Alison Mitzner, a board-certified pediatrician.

When should a baby wear a snowsuit?

By 6 months, even before she can walk, she will probably be excited by snow's novel texture, says Dr. Hill. The rules for newborn baby winter clothes for snow play have a large emphasis on staying dry. A waterproof snowsuit with attached feet—or a snow jacket and waterproof pants and boots—are a must, says Dr.