Do you think bad weather is a good reason for moving?
Would you uproot your life, leaving behind your family, your job etc if you dont like the weather in a country.
(Obviously theres always more than one advantage of moving someplace but to build a life somewhere, would weather be top 3 factors in choosing where to live).
As someone who lives in a sunny place, and knows how much it impacts my general well-being when it's not sunny, I would absolutely move for the weather. If I lived somewhere known for being grey and rainy, I could guarantee I'd have depression. I need to live in a sunny place to function.