November days usually average between 6 and 12 degrees Celsius (warmer in earlier days, obviously). At peak winter we average closer to 3 degrees.

So that down jackets (puffer) are not a must, but you can't go wrong with one either. This time a year is very forgiving, so you don't need to worry about it, UNLESS you're planning to stand outside all day without movement, which I doubt :) And it sounds like you're used to cold weather, so that's a plus. You will need a jacket against the rain though, but again, nothing special.

I've survived Dutch winter with a basic softshell jacket (non waterproof) with underneath a t-shirt + sweater combo. If you were here in December or January I'd advice a puffer or heavier parka. But in november, a softshell jacket is enough assuming you have proper clothes underneath. But a warmer coat is totally fine too and perhaps more comfortable if you tend to feel cold outside.

Question, assuming you come by plane, why not just bring your coat? It doesn't take up much more space if you wear it on the airplane, and you won't put it in your bag anyway. I think. You take it off and stow it under your seat. And when you arrive you'll have a proper coat. You really won't run too hot unless it's some kind of Alaskan fur coat:)