The only issue i have with this comment is that the sun starts fires. That could cause some issues i think. Lightning storms maybe to cause lightning strikes that catch the raft ablaze?
I mostly meant in the summer since that would be the hottest time. But heck. Why not both lightning storms AND fires. But when I say it starts a fire, there would be some sort of sound cue as it starts to heat up, then, if the player doesn't douse it with water in time, it grows. the whole raft won't go up in flames though. I mentioned that the lower floor is safe since it is actually touching the water.