I was there this past January. Weather was great; warm during the day, and pleasant (not cold) at night. We had one heavy rain storm one afternoon. Pool was great. Even wet and riding on the inner tubes on the lazy river, it wasn't cold. Rainbow Reef was COLD though. Did not get into the ocean or lagoon due to unexpected jelly fish swarm that closed Hanauma Bay. Disney did not close the lagoon, but I wasn't going to chance it.