What to Wear in Thailand
The simplest answer: wear lightweight, breathable clothes for Thailand’s heat and humidity, but keep at least one outfit that covers your shoulders and knees for temples, royal sites and more conservative settings. Shorts, T-shirts, loose dresses and sandals work for much of a holiday; swimwear belongs at the beach or pool rather than on the street.
Thailand is easy to dress for once you stop trying to find one outfit that works everywhere. Bangkok, a Phuket beach, a Chiang Mai temple and a rooftop bar are four quite different situations.
For most Australian travellers, the best approach in 2026 is a small wardrobe of light clothes that can move between them.
The safe choice for Thailand
If you want one outfit that will get you through a large part of a sightseeing day, try:
- a lightweight T-shirt or short-sleeved shirt;
- loose linen, cotton or quick-drying trousers;
- comfortable sandals or breathable sneakers;
- a hat and sunglasses outdoors; and
- a very light overshirt or layer for air-conditioning.
For women, a loose midi dress or lightweight skirt with a sleeved top can do the same job.
This is comfortable enough for hot streets and markets while giving you far more flexibility than spending the day in very short shorts or beachwear.
What Thailand’s weather means for your clothes
Thailand is tropical, and heat is the first thing I would pack around. The Tourism Authority of Thailand describes a climate influenced by both summer and winter monsoons, with temperatures nationally ranging roughly from 18°C to 38°C across the year.
That does not mean every part of Thailand has identical weather. Bangkok can feel intensely hot and humid, northern Thailand can be noticeably cooler during the cooler months, and rainy periods vary between the Andaman coast and Gulf islands.
So concentrate less on the number on the weather app and more on three practical problems: heat, humidity and sudden rain.
Fabrics that work well
I would prioritise:
- lightweight cotton;
- linen and linen blends;
- viscose or similar light fabrics if they breathe well;
- technical travel fabrics that dry quickly; and
- light, unlined clothing rather than heavy structured pieces.
Heavy denim can become unpleasant after a few hours in humid weather. A pair of jeans is not forbidden — plenty of people wear them — but I would not build a sightseeing wardrobe around them.
The same applies to thick jackets. You may appreciate a light layer in an aggressively air-conditioned shopping centre, hotel or flight, but you generally don’t need to pack the kind of outerwear you would take on an Australian winter city break.
What to wear in Bangkok
Bangkok rewards slightly more versatile dressing than a beach destination.
During the day, shorts, skirts, loose trousers, T-shirts, casual shirts and breathable dresses are all practical. Comfortable shoes matter because a supposedly short sightseeing day can turn into kilometres of walking between trains, boats, shopping centres, markets and temples.
A particularly useful Bangkok outfit is loose trousers with a lightweight T-shirt or shirt and comfortable sneakers or sandals. It handles public transport, restaurants and sightseeing without needing much adjustment.
Bangkok is modern rather than universally conservative, so you do not need to dress formally simply to walk around the city. The important distinction is between ordinary city clothing and what is appropriate when you enter a religious or royal site.
At night, Bangkok can become considerably dressier. A rooftop bar, smart hotel restaurant or high-end club may warrant a collared shirt and trousers for men, or a simple dress, skirt or smart separates for women. Check the venue’s own rules if you are going somewhere specific.
What to wear to temples in Thailand
This is the clothing decision worth making before you leave your hotel.
For temples and sacred sites, dress respectfully. A practical rule of thumb is to cover your shoulders and knees and avoid clothing that is very tight, transparent or overtly beach-like.
Individual sites can have their own requirements, so the rules at the place you are visiting take precedence over general travel advice.
The Grand Palace in Bangkok, for example, specifically lists sleeveless tops, crop tops, see-through clothing, short pants, torn pants, tight pants and mini skirts among clothing that is inappropriate for visitors.
The Tourism Authority of Thailand similarly recommends sleeved tops with long trousers for men visiting royal palaces, and sleeved tops with trousers or skirts covering the knees for women.
If temples are part of your itinerary, see our more detailed guide to what to wear to temples in Thailand.
Easy-on shoes are useful
You will sometimes need to remove your shoes before entering religious buildings, so complicated lace-up boots are not my first choice for a temple-heavy day.
Sandals, slip-on shoes or sneakers you can remove without a wrestling match are much easier.
That does not mean wearing flimsy flip-flops everywhere. Choose shoes according to how much walking you expect to do.
What to wear in Phuket, Krabi and the Thai islands
Beach destinations are naturally more relaxed.
During the day, think:
- swimwear;
- a loose cover-up or shirt;
- shorts;
- light dresses;
- T-shirts or singlets around genuinely beach-oriented areas;
- sandals or thongs; and
- a hat.
The distinction I would keep is between being on the beach and moving through a town or public space.
A bikini or pair of boardshorts makes perfect sense beside the water. Throwing on a shirt, dress, sarong or other cover-up before heading into shops, restaurants, transport or town is more practical and respectful.
If most of your holiday revolves around the coast, our guides to what to wear at the beach in Thailand and what to wear at a Thailand resort go into more detail.
What to wear in Chiang Mai and northern Thailand
Chiang Mai still gets hot, but northern Thailand deserves a little more seasonal thought than an island packing list.
During warm weather, the same lightweight shirts, dresses, skirts and trousers you would wear elsewhere in Thailand are useful.
In cooler periods, particularly early mornings and evenings, a light jumper, cardigan or jacket becomes more worthwhile.
Chiang Mai also tends to put temples, markets, cafés and walking around the old city into the same day. That makes a loose, temple-ready outfit particularly convenient: lightweight trousers or a longer skirt with a T-shirt or breathable sleeved shirt and comfortable shoes.
What to wear during Thailand’s rainy season
Do not interpret “rainy season” as an instruction to pack heavy waterproof hiking equipment for an ordinary holiday.
For most travellers, the more useful strategy is:
- quick-drying clothing;
- shoes that can cope with getting wet;
- a compact umbrella;
- a very lightweight rain shell if you like one; and
- a waterproof or water-resistant solution for your phone and valuables.
Hot weather does not disappear just because it rains. A thick waterproof jacket can leave you almost as wet from perspiration as you would have been from the shower.
Before travelling, check the current conditions for the particular part of Thailand you are visiting rather than assuming one national wet-season calendar. The Tourism Authority of Thailand weather guide is a useful starting point.
What to wear at night in Thailand
There is no single Thai nightlife dress code.
A casual beach bar on Koh Samui is not a Bangkok rooftop bar, and neither has much in common with an upmarket hotel restaurant.
For casual evenings, clean shorts or lightweight trousers with a shirt, polo or T-shirt work well for men. Women have plenty of scope with dresses, skirts, trousers, shorts and simple tops.
For smarter venues, upgrade rather than overcomplicate:
- light trousers rather than beach shorts;
- a collared shirt or neat polo;
- a simple dress or polished separates;
- clean shoes or smarter sandals; and
- one small evening bag rather than carrying your daytime sightseeing kit.
You rarely need heavy formalwear. In Thailand’s climate, looking neat in simple lightweight clothing generally works better than forcing yourself into layers designed for a cooler country.
What should men wear in Thailand?
A very workable men’s travel wardrobe is built around T-shirts, one or two lightweight collared shirts, shorts, loose trousers and comfortable shoes.
I would make sure at least one pair of trousers and one sleeved shirt can be used for temples, nicer restaurants and any venue that has a dress requirement.
Boardshorts belong at the pool or beach. They are not a substitute for everyday shorts for the entire trip.
What should women wear in Thailand?
Light dresses are particularly useful in Thailand because one piece can make a complete outfit without adding layers.
Loose trousers, skirts, shorts, breathable tops and lightweight shirts also combine easily.
For sightseeing that may include temples, a midi or maxi skirt, loose trousers or a below-knee dress can save you having to return to the hotel and change.
A lightweight shirt is one of the most useful items you can bring. It can add coverage over a top, act as a beach cover-up and provide a little protection from sun or air-conditioning.
What shoes should you wear in Thailand?
For most trips I would take no more than two or three useful categories:
- comfortable walking shoes or sneakers for cities, long sightseeing days and travel;
- sandals for hot casual days and easy removal at appropriate sites; and
- thongs or simple water-friendly footwear for pools and beaches.
If you have a particularly smart dinner or event planned, add an appropriate shoe for that rather than packing dress shoes “just in case”.
Good grip is worth considering in rainy weather. Smooth wet tiles and pavements can be surprisingly slippery.
What not to wear in Thailand
There is very little ordinary Western clothing that you need to rule out across Thailand altogether. Context matters more than bans.
However, I would avoid relying on:
- swimwear as normal street clothing;
- very short or revealing clothing on temple days;
- heavy denim for every day of a humid holiday;
- thick jackets and excessive layering;
- brand-new shoes you have never walked in;
- one “temple scarf” as your only plan for sites with stricter dress rules; and
- a suitcase full of clothes that only work as complete outfits.
Pack pieces that repeat.
A simple Thailand packing list
For a typical warm-weather holiday, I would start with something like:
- 4–6 lightweight tops;
- 2–3 pairs of shorts;
- 1–2 pairs of lightweight long trousers;
- 1 longer skirt or dress if you wear them;
- 1 lightweight long-sleeved or short-sleeved overshirt;
- 1 smarter evening outfit;
- swimwear;
- a beach or pool cover-up;
- comfortable walking shoes;
- sandals;
- thongs if useful;
- hat and sunglasses;
- compact rain protection; and
- a light layer for flights and air-conditioning.
Adjust quantities according to how often you can wash clothes rather than simply adding another outfit for every day.
For a more systematic list, see what to pack for Thailand. If you’re travelling light, our carry-on-only holiday guide is also useful.
So, what should you actually wear in Thailand?
Dress for the heat first, then modify the outfit for where you are going.
For a normal sightseeing day: a breathable T-shirt or shirt, loose shorts or trousers and comfortable sandals or sneakers.
For temples and royal sites: shoulders and knees covered, with modest loose clothing and shoes that are easy to remove when required.
For the islands: beachwear by the water, with an easy cover-up for walking through town, eating or travelling.
For Bangkok at night: lightweight but slightly smarter clothing, particularly for rooftop bars, hotels and more polished restaurants.
For rainy weather: keep the clothes light and quick-drying rather than dressing as though you are hiking through a cold Australian storm.
Thailand does not require a special travel costume. Pack clothes you already feel comfortable wearing, make them lighter and more breathable, and keep one respectful outfit ready for the places where it matters.
