I love sun, beach and hot temperatures because I live with that at all the time (except the 7 days of rain per year). The summer I can enjoy it more with my friends, sleeping outside (even if it's forbidden) and make a party on the beach, I love it.
But I love cold countries too, even the summer, last summer I went in Russia (because my father is) and it was quite cold, that was really amazing and completely different. I always went for Christmas but the summer, it could be better.
And I hope that in August, when I will go in Ireland and in England, visiting my exchange, it won't be cold and raining at all the time !