Thanks for these tips. I am doing the same cruise on May 16th but in the opposite direction. Someone had mentioned layers to me too, so I'm pleased I found this thread. I will still take my umbrella in case it's needed at other times, but I take your point about using it on the ship, so that's helpful thank you.
Cheeky honey, what date in June are you travelling? I may be able to share tips on my return from the ship. If there's anything you need me to find out when I'm on it, let me know! Have you registered for the meet and greet on the ship? That's a good way of meeting people onboard. We did that on our last cruise and are doing it again on this one.