I have umbrellas in the boat that we break out when it gets hot and sunny and they also work in the rain pretty good. People laugh but we are at least 10 degrees cooler setting under them. My sister in law and her husband were on the shore and seen Jerry and I setting in the boat with the umbrellas up in the rain. She didn't know it was us and told here husband "Look at those to poor old women settin in the rain".