You want a variety of clothes because the weather can be anywhere from 30 degrees at the glaciers and 80 degrees at the port cities. You can have rain or sunshine or both. Bring Hats, Gloves and scarves, shorts, sunscreen and mosquito repellant too. I did wear hiking boots and I brought a parka type jacket. It was freezing during the sailing days in the Fjords. I wish I'd brought even warmer clothes to be up on the pool deck for viewing the glaciers. Think about small icebergs floating around the ship - and they are mint blue. In Juneau people wore shorts - unusual weather for June. Umbrellas or waterproof hooded jackets. Think LL Bean stuff.