why south of scandinavia is whiter than the very north

[nsk4ll]

like samis and scandis are in the same region yet samis are shorter more darker skinned and have darker features overall whereas southern scandinavians have lighter features, can anyone explain?
@whiteegyptian

 

[whiteegyptian]

Yeah I noticed this too mainly cuz south is more germanic but in other countries it's opposite where north is always whiter