i think what it means is you may get sunburn to death if you stay in the sun for too long. just kidding. I think it means nothing

I think the idea behind the "in the sun" part is the image of dying in the desert: without water, without shade and without help.

oh,it's Cranberries……'"dying in the sun" Do you remember The things we used to say? I feel so nervous When I think of yesterday How could I let things Get to me so bad? How did I let things get to me? Like dying in the sun Like dying in the sun Like dying in the sun Like dying ......

Which song?