We packed for all seasons of weather-layers and layers. HAH! It was warm and sunny every day except Sitka--warm and cloudy with sprinkles. Hardly needed sweatshirts and never even used the jackets. Never used the sunscreen, but didn't ski or walk on glacier. Didn't bring or need gloves. BUT all the locals raved about the record temps, so this may have been rare. Somehow we lucked out with the weather, although friends who went in June said the same thing.
Someone on a similar thread said to put back 1/2 of what you've just packed and you'll be OK. Words to live by. Happy cruising. You will love Alaska.
Explorer E. Carib. 1/12/02
Explorer W. Carib. 1/18/03
Summit Alaska cruise/tour 8/3/03
Adventure S. Carib 2/8/04