Alaska Cruise Packing List: Layers, Rain, and What People Forget

If you take one thing away from this whole post, let it be this: layers beat one big bulky coat every single time. Alaska isn't usually freezing cold in cruise season, it's more like cool, damp, and unpredictable. A heavy parka will leave you sweating on the bus and shivering on the glacier viewing deck. What you actually want is a base layer, a cozy mid layer, and a weatherproof outer layer you can peel on and off all day.

My go-to mid layer is a soft, lightweight cardigan that I can throw on over a t-shirt at dinner or zip under my jacket on a cold deck. It folds down to almost nothing in my bag, which means I can bring two and not feel guilty about it. Pair that with a couple of long-sleeve shirts, a fleece or sweater for the really cool mornings, and you've got a wardrobe that handles 40 degrees and 65 degrees with zero drama.

I'm just going to say it plainly: it will probably rain. Southeast Alaska is literally a temperate rainforest, so towns like Ketchikan get rain a lot of the year. The good news is rain doesn't have to ruin a single excursion if you're prepared for it. The bad news is the ship's gift shop will charge you a small fortune for a poncho if you forget, so let's not do that.

A packable rain jacket is the hero of any Alaska trip. You want something that actually keeps water out but stuffs down small enough to live in your day bag so it's always with you. I keep mine clipped to my backpack every time I go ashore, even on sunny mornings, because the weather will absolutely surprise you. Skip the umbrella, by the way, it's awkward on whale watching boats and useless in wind. A good hood does the job.

Alaska port days mean walking, and often on wet docks, gravel trails, or uneven boardwalks. This is not the trip for cute sandals or brand new shoes you haven't broken in yet. I learned that one the hard way with blisters in Skagway, and trust me, hobbling through a gold rush town is not the memory you want.

Bring comfortable walking shoes with real grip and ideally something water resistant, because puddles happen and so does morning dew on the trails. Honestly a sturdy, broken in pair you already love is worth more than anything fancy. I bring one main walking pair plus a comfy slip on for around the ship so my feet get a break in the evenings.

Here's where I save you from the little annoyances. First, a portable power bank. You'll be using your phone all day for photos of glaciers, whales, and eagles, and cold weather drains batteries faster than you'd expect. Nothing stings like your phone dying right as a humpback breaches. Keep a charged power bank in your day bag and you're golden. Also pack a small daypack itself, binoculars if you have them, sunglasses for surprisingly bright days on the water, and a refillable water bottle.

A few more easy wins: bring a couple of zip top bags to keep your phone and tickets dry, lip balm and lotion since the air and wind dry you out, and any motion remedies you like if open water bothers you. Layered gloves and a light beanie take up almost no room and you'll be so happy to have them on a glacier day. None of this is glamorous, but it's the difference between a comfy trip and a slightly miserable one.

Let's lighten that suitcase. You do not need a different outfit for every single day, because layering means you'll re-wear those base pieces happily. Skip the heavy formal wear unless your specific cruise line really leans into formal nights, and even then, one nice outfit is plenty. Alaska cruises tend to run more casual and outdoorsy than Caribbean ones, so comfort wins.

You can also leave behind that giant beach bag, fancy swimwear beyond one suit for the ship's hot tub, and anything you're only bringing 'just in case.' If you find yourself unsure about an item, ask whether you'd actually wear it twice. If the answer is no, it stays home. Packing lighter means more room for the smoked salmon and souvenirs you'll absolutely want to bring back.