We were there May 15-22. We had rain two days, and what seemed to be abnormally cooler weather most of our other days. Some of the CM's said it had been much wetter and cooler than usual this time of year. There was quite a breeze the first 5 days we were there, with some heavier cloud cover, so we were actually quite cool in some of the pools, or when floating the river earlier in the morning or later at night, as it was somewhat shaded. The days of rain we had, one time it was a 15-20min rain shower, hard at times but moved quick. The other day it pretty much rained on and off from about noon-5pm. At times a light sprinkle, at other times a pretty significant amount. I am from the Pacific NW so no stranger to rain, but it still kind of sucked to get everything soaked because it was rainy and breezy, so even under the umbrellas we would get wet.