As there are people who enjoy different seasons differently, it all really depends on their feeling of comfort. European people may like to try out a less rainy and dark atmosphere and try someplace more sunny and warm or people living in icy conditions would crave for some tropical heat. This comfort is also sought by canine companions however too much of anything is coined as bad.

Take the Bernese Mountain dog, they were developed in the Swiss Alps and used for pulling carts and farm dogs in the extreme cold. With their dual coats they are insulated. But a few degrees below zero may prove too much for them.  One good sign to bring them inside is standing on three legs, alternating them and shivering. To help help them avoid freezing even more outside, trim the hair on the paws so as not to accumulate ice and make it more uncomfortable for them. Keep them indoors after their shots for their resistance would  be weak.