For an Alaskan cruise in May, you should pack clothing and gear suitable for cool, often wet, and variable spring weather, with temperatures typically ranging from the mid-30s to mid-50s °F (1-12 °C). Here is a detailed packing guide:

Clothing

• Layered clothing: Moisture-wicking base layers (such as long underwear), fleece sweaters, and a warm, waterproof jacket are essential to handle changing temperatures and occasional rain

• Waterproof footwear: Comfortable waterproof boots and plenty of warm, moisture-wicking socks will keep your feet dry and warm during wet excursions

• Hats and gloves: A snug beanie and lightweight gloves will help keep you warm on chilly mornings and evenings

• Casual and activewear: Jeans, t-shirts, leggings, and comfortable activewear pants for daily wear, plus synthetic (non-cotton) clothing for outdoor activities to stay warm and dry

• Additional outerwear: A lightweight windbreaker and possibly a light down jacket or fleece for extra warmth

• Swimsuit and sandals: For onboard pools or spas, though these won’t be heavily used outdoors

Accessories and Essentials

• Daypack: A sturdy, waterproof daypack for excursions to carry essentials and protect gear from rain

• Waterproof bag: To protect vulnerable items from rain and splashes during outdoor activities

• Reusable water bottle: Stay hydrated during excursions and onboard

• Polarized sunglasses: To protect your eyes from glare, especially with long daylight hours

• Binoculars and camera: For wildlife viewing and capturing scenic landscapes

• Sunscreen and insect repellent: Even in cooler weather, sun protection and bug spray are useful

• Sleep mask: Helpful due to long daylight hours in May

• Motion sickness medication: Recommended if you are prone to seasickness

• Chargers and power banks: For your electronic devices

Additional Tips

• Pack one to one and a half t-shirts per day, especially if laundry options are limited

• Prepare for variable weather; May can bring rain, chilly mornings, and warmer afternoons, so layering is key

• Check your cruise line’s dress code for any formal nights and pack accordingly

This packing approach will keep you comfortable, dry, and prepared for both onboard activities and shore excursions during your May Alaskan cruise.