What to Pack for Bangkok: What to Bring and What to Leave at Home

What to Pack for Bangkok in Short

Bangkok is hot and humid all year, so the bag is simple. Pack light, loose clothes for 3 to 5 days, one outfit that covers your shoulders and knees for temples, a compact rain layer and one universal plug adapter. Laundry shops charge about 30 to 60 baht a kilo, so there is no reason to carry two weeks of clothes.

The part people get wrong is not what they forget. It is what they bring. Vapes are illegal, some medicines need paperwork, and cash over a set limit has to be declared. We cover those below, because a forgotten T-shirt is easy to replace and a vape at the airport is not.

All rules here come from official pages (the UK Foreign Office, the Thai FDA and Thai customs), checked in October 2026. Rules change, so check the official page for anything that matters to your trip.

Clothes: Lighter and Looser Than You Think

Pack breathable, loose clothes: linen, light cotton, wide-leg trousers and loose shirts. Leave thick denim, heavy synthetics and tight fits at home. They stay damp and hot all day.

Even the cool season is warm. It's Better in Thailand puts November to February at 28 to 33 degrees C, and the hot months reach 35 degrees and above, with April the worst. Plan malls, museums and indoor sights for the middle of the day.

The one warm thing you do need is a light layer for air-conditioning. Malls and other indoor spaces run the air-con icy cold, and a thin long-sleeved shirt fixes it. You do not need a jumper for Bangkok itself.

Hotels supply towels and hairdryers, so leave both out. For shoes, bring comfortable walking shoes and a pair of slip-ons or sandals that cope with puddles.

Pack for the Season You Are Flying In

Bangkok has three seasons, and the edges overlap.

• November to February, cool and dry: the easiest months. Light clothes and the air-con layer are enough.
• March to May, hot: the loosest, lightest fabrics you own, plus electrolyte sachets from 7-Eleven.
• June to October, rainy: rain comes in short, heavy bursts that flood streets, then clears. Pack quick-dry clothes, sandals you do not mind soaking and a packable poncho or compact umbrella rather than a bulky raincoat.

If you are coming in the wet months, our guide to what to do in Bangkok when it rains has the indoor plan, and the best time to visit Bangkok compares the seasons on price and crowds.

One current note. In late October 2026 the UK Foreign Office reported severe flooding in parts of Thailand, including Bangkok, with road closures possible in low-lying areas. Check its Thailand travel advice page before you fly.

The Temple Outfit You Need at Least Once

Every temple asks you to cover your shoulders and knees. That rules out sleeveless tops, shorts and short skirts. Shoes come off before you enter temple buildings, so slip-ons save time at every stop.

The Grand Palace and Wat Phra Kaew are the strictest. A scarf thrown over a sleeveless top is refused there, and Your Thai Guide says leggings, see-through or ripped clothes and rolled-up sleeves are turned away too, and ankles may need covering. Ankle-length loose trousers and a top with sleeves solve it.

If you get caught out, the palace and most temples sell or rent loose trousers. They rarely fit well, so we would bring your own scarf or sarong. Our guide to what to wear in Bangkok temples has full outfits for men and women, and our Grand Palace guide covers tickets and hours.

Plugs, Power and Your Phone

The supply is 220 volts at 50 Hz. UK, EU and Australian devices work as they are. US and Canadian 110-volt items need a converter unless they are dual voltage, and most phone and laptop chargers already are.

The plug is the catch. Thai sockets usually take flat or round two-pin plugs, and none of the sources we checked lists the UK three-pin plug. Pack one universal adapter. It changes the pin shape, not the voltage. If you forget, convenience stores and supermarkets sell them cheaply.

Sort your phone before you leave too. An eSIM set up at home means you land with data. Our Thailand tourist SIM and eSIM guide has the plan prices.

Medicines: Bring Them, With the Paperwork

You can bring personal medicines for up to 30 days of use, or herbal products for up to 90 days. Keep them in labelled original packaging.

Stronger medicines need more. Psychotropic medicines in Schedules II to IV need the prescriber's certificate for up to 30 days. For 31 to 90 days of use, the Thai FDA asks for a permit (Form IC-2) at least 15 days before travel. Type I psychotropics are not allowed, and narcotic medicines need an FDA licence before import. Medical devices for personal use need the maker's product information, a doctor's certificate and a letter saying they are not for sale. Cannabis and hemp foods, cosmetics and herbal products may not be brought in at all.

If you run short, GOV.UK says Thai hospitals and pharmacies usually accept UK prescriptions. Pharmacies are easy to find, from Boots and Watsons to small local shops. Ask by the generic drug name, not the brand. GOV.UK also warns that medicine sold on the street may be fake or stolen.

What Not to Bring to Thailand

Vapes are the big one. Any vape, e-cigarette, pod, e-liquid or heat-not-burn device is illegal to bring in or use, for tourists too. The UK Foreign Office says offences can bring confiscation, fines typically of 5,000 to 30,000 baht, detention and a court case, and you may have to stay in Thailand until the case closes. Leave the device and the liquids at home.

The rest are customs limits:

• Tobacco: 200 cigarettes or 250 grams of cigars or tobacco. GOV.UK says going over 200 cigarettes risks a fine of 10 times the value.
• Alcohol: 1 litre duty free.
• Goods: personal effects up to 20,000 baht in reasonable amounts are duty free.
• Cash: declare Thai currency over 450,000 baht, or foreign currency over USD 15,000, when you arrive or leave.

Narcotics, weapons, obscene articles, wild animals and plants, and fake branded goods are restricted or banned. If you carry anything dutiable or restricted through the green channel, the official rules allow confiscation and a fine of four times the price including duty. When in doubt, use the red channel.

Our Bangkok scams guide covers the airport traps that have nothing to do with your bag.

What to Buy When You Get There

Much of a packing list can wait until you land. Every 7-Eleven sells mosquito repellent, from Soffell at roughly 30 to 90 baht to stronger 25% DEET brands. It also sells electrolyte sachets, wet wipes and rain ponchos. Plug adapters are in convenience stores and supermarkets.

Laundry is the biggest saving. A laundry shop charges about 30 to 60 baht a kilo, roughly 4 or 5 T-shirts, and express service is around 100 baht a kilo. A hotel may charge 100 baht for a single T-shirt, so use the shop down the road.

Pack a few things from day one. Not every toilet has paper or soap, and some charge about 5 baht. Carry tissues, wet wipes, hand sanitiser and a few coins. Used paper goes in the bin, not the bowl.

Suitcase or Backpack?

For most of our readers, a suitcase. It's Better in Thailand recommends a roller case with bigger wheels, because a backpack is hot to carry in this climate and small wheels struggle on Thai pavements. If you are moving between hotels by taxi or Grab, the difference is small. If you will walk from stations, bigger wheels matter.

Keep your passport somewhere easy to reach. It needs at least 6 months left from arrival and one blank page, and officials can ask to see proof of funds and onward travel.

Our Short Version

Pack 3 to 5 days of loose, light clothes and plan to do laundry. Bring one temple outfit with sleeves and ankle-length trousers, a compact rain layer, a universal adapter and your medicines in their original packs. Leave the vape at home. Buy repellent and electrolytes at 7-Eleven when you land.

What is the one thing you always forget to pack, and did Bangkok make you regret it?