Japan packing list: plugs, seasons, and gear by activity

What you pack for Japan depends heavily on when you're going and where: the country runs on Type A/B plugs, temperatures swing hard between seasons, and specific trips (skiing, hiking, snow country) call for their own gear list. Here's what actually matters, month by month and activity by activity.

What plug adapter do I need?

Japan uses 100V, 50/60Hz electricity with Type A/B sockets — the two flat parallel pins, sometimes with a round grounding pin (Type B). Bring a matching plug adapter or a universal one; using the wrong plug risks permanently damaging your devices.

What should I pack by season?

January (cities): A winter coat plus layers (sweater or fleece over a long-sleeve shirt) is usually enough, since trains, department stores, and restaurants are well-heated.
January (Sapporo, Niseko, Hakuba): Snow country needs more: waterproof outerwear, insulated boots, thermal base layers, hat, proper winter gloves, plus scarves or masks, warm socks, heat packs, and anti-fog cloth for glasses.
March: Still late-winter cold — pack a warm jacket or wool coat, scarves, and gloves for chilly mornings and nights, especially if you're chasing cherry blossoms.
April: Layering is key. Swap heavy coats for a lighter jacket (trench or denim), add sweaters and long-sleeved shirts, and keep something for occasional rain.
May: Feels like early summer — T-shirts work, but bring a light jacket or cardigan for cooler evenings.

What extra gear do specific activities need?

Kumano Kodo hiking: Sturdy hiking boots, quick-drying layers, waterproof outerwear, a comfortable day pack, a water bottle, sun protection, and a torch or headlamp. Walking poles are optional.
Skiing in Hokkaido: Dress in layers — thermals, a fleece warmth layer, and a windproof/waterproof outer shell. Add goggles with a double lens for low light, a fleece neck-warmer, a hat, and spare gloves. Rubber-soled winter boots are essential, since roads can be extremely slippery.

What about medication and driving documents?

You can bring a one-month supply of prescription medication or a two-month supply of non-prescription medication, as long as it doesn't contain narcotics (including codeine) — carry a doctor's note with your full name, address, reason for use, and dosage. Larger quantities or narcotic-containing prescriptions require import certification applied for months ahead of travel. If you plan to rent a car, pack an International Driving Permit alongside your home licence; Japan drives on the left.

FAQ

Do I need a different adapter than in North America? Only if your devices aren't Type A/B compatible — Japan uses 100V/50–60Hz with Type A/B plugs, so a mismatched plug can damage equipment.

Can I bring my regular prescription meds? Yes, up to a one-month supply (two months for non-prescription), provided it's narcotic-free and accompanied by a doctor's note with your details and dosage; larger amounts need advance import certification.

Is a day pack enough for the Kumano Kodo? Yes — pair it with hiking boots, quick-drying layers, waterproof outerwear, water, sun protection, and a headlamp for early or late-day sections.

Japan packing list: plugs, seasons, and gear by activity

What plug adapter do I need?

What should I pack by season?

What extra gear do specific activities need?

What about medication and driving documents?

FAQ

Sources

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