Decluttering for the big move

My family and I are moving to Denmark soon. We come from a tropical country and I am in the process of going through my closet to pick out the things that I need to pack or let go. We’ve already done quite a bit of shopping for colder weather clothes when we visited Japan and US recently so that’s already covered. I’m wondering if I should let go of my dresses because I read it’s seldom that women wear dresses since pants are preferred, especially if you are cycling to work.

I do love my summer (with maxi and flowy skirts) and even office (knee-length, pencil cut) dresses. Which ones can I actually wear in Denmark (given the weather and climate)? And which ones should I just give away or leave with my parents for when we visit home or vacation in tropical countries. Also, how about sandals and ballet flats? Do women in Denmark wear those in warmer weather? And sleeveless clothes? For context, we will not be staying in Copenhagen but somewhere in central Denmark.