It would be helpful if, in the future, you could provide a link to the papers being cited. In this case, this is the Beleza et al 2006 study in question:
http://onlinelibrary.wiley.com/doi/1...5.00221.x/full
There are hotspots of certain yDna and mtDna subclades throughout Europe. National averages and even regional averages can be quite different. (Also, total similarity is, in my opinion, much more correlated to autosomal Dna. )
You can find the national averages (and some regional ones) for yDna I1, which is the variety associated with Fenno-Scandia and Germany, and using much more than one paper, at the following link:
http://www.eupedia.com/europe/europe...logroups.shtml
Whether, in the case of your particular area, the local "fairer", phenotypes are due to more Suebi ancestors in that area than in others I don't know.
It's ironic, because my au pair was from a Portuguese American community that was almost all from Porto, and they were probably the darkest Europeans I've ever known. That's been a lesson to me not to draw too many conclusions based on some subset of diaspora people when imagining the phenotypes of Europeans.
Oh, as to people who would post that people from anywhere in Spain or Portugal are not European, I would recommend that you consider the source and not take it too seriously. There are strange people out there with strange agendas and beliefs. Best to realize that most people give such opinions short shrift. The world of the anthrofora is not reality, you know.