I always assumed getting sun(in moderation) was good for oneself. As much as I dislike the heat in general, I always have way more energy after spending a few hours in the sun. I assume(perhaps incorrectly) this was due to a Vitamin D bump.

Further, I've known two people in my life who get weird skin issues if they stay out of the sun too long. My wife is one of them! Really weird, considering how damaging the sun is considered.