Since we're on the subject, I lived in Penafiel, a little town up North, it's situated in a valley called Vale de Sousa.
It has one major issue, in the Summertime, it gets way too hot and in the winter it gets way too cold. It's easy to catch a cold up north.
Now that I've been living in a coastal city for over a year, I can safely say that it's much nicer, because it's never too hot and never too cold.