Thailand Packing List

Updated September 2026 · Vacation Checklists

A good Thailand packing list solves two problems at once: how to stay covered enough for temples and how to stay cool in air that regularly sits near 90 percent humidity. Those pull in opposite directions, and the answer is fabric rather than willpower. Loose, light, quick dry clothing that covers shoulders and knees is comfortable in Thai heat in a way that a tight cotton t-shirt is not. Add a dry bag for boat transfers, real mosquito protection, and a passport with plenty of validity left, and the trip runs smoothly.

Build your own version with our free packing list generator, then adjust it with the regional and seasonal tables below.

Updated September 2026. Entry requirements, arrival card systems, and health guidance change, sometimes at short notice. Confirm current details on the US State Department's Thailand page and the CDC's Thailand travel health page before you book. This is a packing guide and not medical advice.

Thailand Has Several Rain Seasons, Not One

"Rainy season" is the phrase that ruins Thailand itineraries, because it suggests one nationwide pattern. There are really three, and the Gulf coast runs on a different calendar from the Andaman coast even though the two are a few hours apart by road.

What that means for a two week trip. A July itinerary of Bangkok, Chiang Mai, and Koh Samui works well, because the Gulf islands are usually at their best when the Andaman coast is wettest. The same itinerary in November flips: Bangkok and Chiang Mai are lovely and Samui is in its wettest stretch.

Two more timing notes. The hot season, roughly March to May, is genuinely hot across most of the country and is when hydration and sun gear matter most. And in the far north, roughly February to April, agricultural burning and regional haze can push air quality down significantly in and around Chiang Mai. Travelers who are sensitive to air quality often pack a well fitting mask for that window and check current readings before booking the northern leg.

One routing note. The State Department maintains a heightened advisory for Thailand's far southern provinces near the Malaysian border, which is worth reading before you route a trip through Hat Yai or further south. Check the current advisory yourself rather than relying on any article, since the wording is revised periodically.

Temple Dress Rules, Stated Plainly

Thailand is relaxed about everyday dress and strict at temples, and the second part is enforced by staff at the door rather than left to judgment. Being turned away at Wat Phra Kaew because of a sleeveless top is an ordinary morning for the people who work there.

The standard that works everywhere:

• Shoulders covered. No tank tops, no spaghetti straps, no sleeveless dresses.
• Knees covered. Long pants, long skirts, or a sarong over shorts.
• Nothing sheer or tight. A see through cover up does not count as covered, and leggings alone are often refused.
• Shoes off before entering a building that houses a Buddha image. Slip on shoes make this painless. Socks are usually fine.
• Feet matter. Sit with your feet tucked behind you rather than pointing at a Buddha image or a monk, and step over a raised threshold rather than on it.
• Hats and sunglasses off inside.

The Grand Palace is the strictest and the most visited, which is why the dress code gets its reputation there. Some major sites lend or rent cover ups at the entrance, but the line for that is long and the garments are not chosen for comfort. Carrying your own is faster.

Two practical notes. Women should not hand anything directly to a monk or touch one, and there is usually a cloth or an intermediary for that. And if a temple requests no photography inside a particular hall, that is not a suggestion.

The scarf or sarong is the whole solution. A light one lives in the day pack, weighs nothing, doubles as sun cover on a boat, a shoulder wrap in ferocious air conditioning, and a beach layer. Buy a second one locally, because they are everywhere.

A souvenir warning worth knowing. Thailand restricts the export of Buddha images and religious antiquities, and permission is required for many of them. A carved Buddha head from a market stall can become a customs problem on the way out, so ask before you buy and keep the receipt.

Fabric That Works in 90 Percent Humidity

In dry heat, almost anything loose works. In Thai humidity, sweat does not evaporate quickly, so the fabric decides whether you are comfortable or miserable.

• Skip heavy cotton for anything you sweat in. It soaks, holds the damp against your skin, and does not dry overnight in humid air.
• Linen, bamboo, rayon blends, and technical synthetics all beat it. Linen creases and nobody cares.
• Loose beats tight, always. Airflow is the mechanism. Fitted clothing sticks.
• Light colors run cooler and hide sweat better than most mid tones.
• One lightweight long sleeve shirt is the hardest working item in the bag. It covers shoulders at a temple, blocks sun on a longtail boat, deals with mosquitoes at dusk, and handles the cold blast of an overnight bus.
• Pack more tops than bottoms. You will change shirts twice on some days. Pants and skirts go further between washes.
• Elephant pants exist for a reason. The loose printed pants sold all over Thailand are genuinely comfortable, temple legal, and sold on practically every street. Many travelers buy a pair on day two and wear them for the rest of the trip.

Laundry is fast and widely available, which is the real reason a two week trip fits in a carry-on. Plan on two laundry stops rather than fourteen days of outfits.

The Thailand Packing List: The Core Kit

On liquids in the cabin bag, the standard rule applies: containers of 3.4 ounces or less in one quart sized clear bag per traveler. Sunscreen and repellent are the two items people forget are liquids, and in Thailand you are carrying a lot of both. Check anything you are unsure about in our can I bring it tool, and our TSA liquid rules guide has the full picture.

Shoes, and the Constant Removal Problem

You will take your shoes off many times a day in Thailand. Temples, many guesthouses, some shops, most massage places, and plenty of family run restaurants all expect it.

1. Strapped sandals as the default pair. Not flip flops for walking. A heel strap keeps them on through wet market floors, boat decks, and stone steps, and they dry in minutes after a downpour.
2. Light walking shoes for long days. Bangkok's sidewalks, the ruins at Ayutthaya and Sukhothai, northern waterfalls, and cave temples all involve hours on your feet. Breathable beats waterproof here, because waterproof shoes trap sweat and never dry out.
3. Basic rubber slides for wet floors. Guesthouse bathrooms, beach walks, and boat decks.

Slip on or easy lace designs save real time, and socks without holes save real embarrassment. Larger sizes are hard to replace locally, so bring shoes with life left in them and pack a small blister kit for the first hot walking days.

Island Boat Transfers Soak Bags

This is the part generic lists miss, and it is where gear gets ruined.

Getting to a Thai island usually means a ferry, then often a longtail boat, and sometimes a wet landing where the boat stops in knee deep water and you walk in. Bags are loaded on an open deck or on the roof. Spray is constant, and in the wet season the crossing can be genuinely rough.

What that means for packing:

• A dry bag is not optional if you are island hopping. Phone, passport, camera, and cash go in it for every crossing. A plastic bag is not the same thing.
• Line your main bag with a trash compactor bag or a large dry sack. The outside of your luggage will get wet even when the sky is clear.
• A soft duffel or a backpack handles a wet landing better than a hard roller. Wheels do not work on sand, on a pier ladder, or in six inches of seawater.
• Wear the sandals for transfer days, and put the walking shoes in the bag. Sandals dry, shoes do not.
• Motion sickness tablets before you board, not after. Small boats in choppy water are a different experience from a large ferry.
• Keep one dry set of clothes sealed in a zip bag. On a bad crossing it is the difference between changing and sitting in wet clothes for the evening.

Small boats get canceled in the wet months on the Andaman side, sometimes at short notice. Build a buffer day before an international flight rather than connecting an island departure directly to a long haul.

Some marine national parks close for part of the year. Several Andaman parks, the Similan and Surin islands among them, shut to visitors for the southwest monsoon, in recent years from around the middle of May until the middle of October, and the dates are set by the national park department rather than by tour operators. Confirm the current season on the park's own page before you build a day or a liveaboard around it, because a booking site listing a trip is not the same thing as the park being open.

Mosquitoes, Sun, and Water

Mosquitoes are a two shift problem here. The mosquito associated with dengue bites during daylight, particularly around dawn and late afternoon, and it breeds in standing water in urban areas. The mosquitoes associated with malaria risk in a small number of border and forested areas bite at night. So repellent in the morning and at dusk, long sleeves and long pants in the evening, and a treated net if you are staying somewhere unscreened and rural.

• Repellent with DEET or picaridin, applied over sunscreen rather than under it.
• Permethrin treated clothing is worth considering for rural or forested legs. Treat at home, since it needs to dry.
• After bite treatment in the kit, because scratching in a hot climate is how a bite becomes an infection.
• A plug in repellent or coils for an open air bungalow.

Vaccination and malaria decisions are a clinician's call, not a website's, and several of the relevant vaccines need weeks of lead time. Our travel vaccinations guide explains the timeline and what to bring to the appointment, and the CDC destination page above lists current recommendations. Bring prescriptions in original labeled packaging, and read our flying with medication guide before you pack them, since some ordinary over the counter items are restricted here.

Sun is stronger than it feels through humid haze. High SPF, a wide brim hat, and sunglasses, reapplied after every swim.

Reef friendly sunscreen matters legally, not just ethically. Since 2021, Thailand has banned sunscreens containing oxybenzone, octinoxate, 4-methylbenzylidene camphor, and butylparaben in its marine national parks. Check the ingredient list on your bottle before you pack it, since plenty of conventional sunscreens still contain at least one of those.

Water. Do not drink from the tap. Bottled and filtered water is available everywhere, ice in restaurants and cafes is usually commercially produced and generally fine in tourist areas, and a filter bottle cuts the number of plastic bottles you go through. Rehydration salts belong in the bag, because heat plus humidity plus walking dehydrates people faster than they notice. Our travel first aid kit guide covers the compact kit that actually gets used.

Entry Documents: The Rule That Catches People on Arrival

Two document details cause more trouble at Thai check-in counters and immigration desks than anything else.

Passport validity. Thailand is one of the countries that expects substantial validity remaining on arrival, and airlines check it at the counter before you ever reach immigration. Count forward from the end of your trip, not from your departure date. Our passport validity six month rule explainer shows the counting method and the worked examples, and the State Department page above carries the current requirement for Thailand specifically.

The arrival card. Thailand moved to a digital arrival card system for foreign arrivals during 2025, replacing the old paper form. Submit it through the official government portal in the window the portal specifies, and apply nowhere else, because lookalike sites are common and charge for a process you can complete yourself. Confirm the current system and the correct portal on the State Department page before you fly, since this is exactly the kind of rule that changes.

A few more document habits:

• Print what matters. Airline staff and immigration officers often want paper, and phone batteries die.
• Keep a photo of your passport in your phone and in your email, plus one printed copy stored separately.
• Onward travel. Airlines sometimes ask visa exempt visitors for proof of onward travel at check-in. Have a booking you can show.
• Cash and cards. Cards work in cities, malls, and hotels. Markets, street food, songthaews, small islands, and guesthouses are cash. Our currency exchange tips guide covers the card settings worth sorting out before you go.

Power, Plugs, and Staying Connected

Thailand runs 220 volts at 50 hertz. Sockets are commonly hybrid, accepting both flat pins and round pins, so many US chargers physically fit without an adapter. That is a trap rather than a convenience.

• Fitting is not the same as being safe. Check the input line on each charger. If it reads 100 to 240V, you are fine. If it is single voltage, usually a hair tool, leave it home.
• Bring a universal adapter anyway, because grounded plugs and older sockets in guesthouses do not always cooperate.
• A power bank earns its place on long bus and boat days, and it flies in your carry-on only, never in checked luggage. Our travel with electronics guide covers the watt hour limits and the current cabin rules.
• A local SIM or eSIM is worth setting up on arrival. Data is good and widely available, and navigation, ride hailing, and boat schedules all depend on it.

Worked Example: Two Weeks in November, Carry-On Only

Bangkok for three nights, an overnight train north, four nights in and around Chiang Mai, a flight south, then five nights on the Andaman coast around Krabi and Koh Lanta, thirteen nights in all. November means the central and northern legs are near their best and the Andaman coast is coming out of its wet stretch.

Bags: a 40 liter carry-on backpack plus a small daypack with a dry bag inside it.

Packed: 5 quick dry tops, 1 lightweight long sleeve, 2 pairs of light long pants, 1 pair of shorts, 1 skirt, 1 light fleece, 1 packable rain shell, 2 swimsuits, 1 sarong, strapped sandals worn, light walking shoes packed, slides, sun hat, and the electronics pouch.

The packing math: six tops for fourteen days works because laundry turns around in a day nearly everywhere, and in that climate you want fresh clothes every day or two regardless of how much you brought. Two laundry stops, end of Bangkok and end of Chiang Mai.

The fleece justified itself twice. Once on the overnight train, where the air conditioning is set to a temperature nobody has explained, and once on a cool morning in the hills north of Chiang Mai.

The dry bag justified itself daily on the island leg, on the ferry, on a kayak morning, and in one afternoon downpour that arrived in about ninety seconds.

Left home: jeans, a second pair of walking shoes, a hair dryer, formal clothes, and a full size toiletry kit. Everything in that last category is available in any Thai city.

What to Leave Home

• Heavy jeans. Hot, slow to dry, and miserable in humidity.
• A big towel. Accommodation provides them, and a small quick dry one covers beach days.
• Most toiletries. Pharmacies and convenience stores are everywhere.
• Formal clothes. One smart casual outfit covers a rooftop bar or a nice dinner.
• Hiking boots, unless a specific multi day trek is on the plan.
• A drone, unless you have checked the current registration and permit rules, which are real here.
• Anything you would hate to lose, which is the standard habit anywhere busy.

Frequently Asked Questions

What should I wear to temples in Thailand?

Shoulders and knees covered, in something opaque and not skin tight. Long pants or a long skirt with a t-shirt works, and a sarong over shorts works in a pinch. Shoes come off before you enter a building housing a Buddha image, hats and sunglasses come off inside, and the Grand Palace in Bangkok enforces all of it strictly.

When is the rainy season in Thailand?

It depends on the coast, which is the whole point of planning a route. Most of the country, including Bangkok, Chiang Mai, and the Andaman coast around Phuket and Krabi, is wettest from roughly May to October. The Gulf islands of Koh Samui, Koh Phangan, and Koh Tao run on a different cycle and are wettest from roughly October to December.

Do I need long pants in Thailand?

Yes, at least two pairs. Temples require covered knees, evening mosquitoes prefer bare legs, and long distance buses and trains run their air conditioning very cold. Light, loose, quick dry pants are more comfortable in the heat than most people expect, and the printed pants sold locally are a popular purchase for exactly this reason.

What plug adapter do I need for Thailand?

Thailand runs 220 volts at 50 hertz with hybrid sockets that accept flat and round pins, so many US plugs fit physically. Fitting is not the issue. Check that each device reads 100 to 240V on the input line, bring a universal adapter for grounded plugs and older sockets, and leave single voltage hair tools at home.

Can I drink the tap water in Thailand?

No. Use bottled or filtered water for drinking and for brushing teeth. A reusable bottle with a built in filter works well and cuts down a lot of plastic. Ice in established restaurants and cafes is generally commercially produced and fine in tourist areas, but use your own judgment at roadside stalls.

How much should I pack for two weeks in Thailand?

About five or six days of clothing, plus swimwear, one warm layer, and a rain shell. Laundry is fast and available almost everywhere, so two laundry stops covers two weeks comfortably. Packing fourteen days of outfits means carrying dirty clothes around a hot country and checking a bag you did not need.

Do I need a dry bag for Thailand?

If any islands are on the itinerary, yes. Ferries and longtail boats load luggage on open decks, spray is constant, and wet landings are normal. A 10 to 20 liter dry bag protects a phone, passport, and camera far better than a plastic bag, and it doubles as a laundry sack on land.

What mosquito protection should I bring to Thailand?

Repellent with DEET or picaridin for day and evening, long sleeves and long pants after dark, after bite treatment, and a treated net if you are staying somewhere rural and unscreened. Daytime biting matters here as much as evening biting. Vaccination and malaria tablet decisions belong to a clinician, and the CDC suggests booking that visit at least a month before you fly, as our travel vaccinations guide explains.

The Short Version

Quick dry everything, loose rather than fitted. One lightweight long sleeve shirt and one sarong solve temples, sun, boats, and air conditioning between them. Strapped sandals plus light walking shoes, both expected to get wet. A dry bag if islands are on the route, real mosquito protection, reef safe sunscreen for marine parks, and a passport with room to spare on validity.

Start with our packing list generator, pick your region and month from the table above, and plan on doing laundry twice. If your trip continues along the coast, our guide on what to pack for Vietnam covers the next country over.