Pack breathable summer layers and strong sun protection for most of the year; add a light jacket, closed shoes, and a rain layer for winter or spring/fall island wind.
Clothing
Lightweight shirts and tops (breathable cotton/linen for hot summers)
T-shirts and tank tops (easy daytime wear)
Shorts and skirts (for islands and casual sightseeing)
Long pants or jeans (for cooler evenings and church visits)
Light sweater or cardigan (spring/fall and breezy ferries)
Dressier outfit (nice dinners in cities or on islands)
Modest cover-up or shawl (for monasteries and churches)
Sleepwear (lightweight, especially in summer)
Underwear and socks (quick-dry if possible)
Swimsuits (bring at least 2 for beach-heavy itineraries)
Footwear
Comfortable walking shoes (for cobblestones and ruins)
Sandals with good support (for warm weather and city walking)
Flip-flops or beach sandals (for seaside use)
Hiking shoes or trail runners (for hikes like Santorini caldera or gorges)
Dress shoes or nicer sandals (for evenings out)
Water shoes (for rocky beaches and boat trips)
Toiletries & Health
Sunscreen SPF 30+ (Greece sun is intense)
After-sun lotion or aloe gel (for sun exposure)
Lip balm with SPF (dry wind and sun)
Basic first-aid kit (blister care, bandages, pain relief)
Prescription medications (carry in original packaging)
Motion sickness tablets (helpful for ferries and boat tours)
Insect repellent (especially near water and in summer)
Hand sanitizer (for transit and day trips)
Tissues or toilet paper pack (not always available)
Reusable water bottle (stay hydrated in heat)
Electronics & Gear
Universal power adapter (Greece uses Type C/F plugs)
Phone and charging cable (for maps and bookings)
Power bank (long sightseeing days)
Camera or action camera (for islands and sunsets)
E-reader or book (ferry rides and beach downtime)
Plug-in travel charger with multiple ports (hotel outlet convenience)
Headphones (flights and ferries)
Dry bag (for boat trips and beach days)
Small daypack (for ruins, ferries, and island hopping)
Portable fan or cooling towel (useful in peak summer)