That would be fun. We have been on 6 Caribbean cruises, but never Alaska. We were all packed and ready to go last year. One week before the trip, I broke my wrist and we had to cancel. So this is a "rebooked" cruise and we are excited about it.
The friends we had booked our cruise with, had a wonderful time. The weather was perfect and they even had several pictures where they were sitting outside with no jackets on. From what I have read, you just never know about Alaska so you have to prepare for anything--hence, "layering"!