With the lack of thermal insulation, it can safely be said that this is not a winter jacket. It would not be my selection for the rain or snow. I did, however, recently take it out to Spain and wear it in 35 degree weather. With an Under Armour thermal shirt and flannel underneath, as well as a thick scarf around my neck, I was good. I had to provide my own insulation, but the jacket cut the wind well. If you plan on wearing it in the cold, you'll probably want some gloves that provide a bit of a seal around the end of the sleeve, as it does zip down to fit snug, but still lets a little air through.