Never use coats, snow suits or thick clothing while your child is in their car seat. It can be dangerous as it does not allow you to pull the harness as tight to your child’s body as it should be. This may lead to the harness slipping off their shoulders in a collision.
You must check your child’s harness is tight enough on every journey. You should be able to place two fingers on your child’s collarbone and no more. If there is movement here, you must tighten the harness more and check again.
It is safe for your child to wear thin layers in their car seat. If it is cold, you can use a blanket over the top of the harnesses to keep your little ones warm.
Your car can get very warm when the heating is on, so you need to be cautious about the possible risk of overheating. When using a blanket, keep it loose enough that it can be pulled off by yourself or kicked off by your little one.
If you often find yourself getting caught in the rain (very likely coming into the colder months) then you should get yourself a Doorbrella. This window attachment holds your umbrella for you, meaning your hands are kept free so that you and your little one will remain dry while you put them in their seat.