What are the considerations to bring 4-5 month old baby for travel? To winter country? Is it a risk that baby will find it too cold?

if your baby is not used to harsh winters then initially it may be difficult for your baby to suddenly adjust. make sure that you get your baby vaccinated and also ask the doctor about travel vaccinations, especially in relation to the country you will travel to. also, buy enough warm clothes, and even in excess, because you never know how many layers your baby may need to stay warm. and yes, do carry lots of baby moisturizer and loads of woolen socks and mittens :)