Topless sunbathing is not allowed in practice: Thai law has no rule that names it, but exposing the body in public is a petty offence under section 388 of the Criminal Code, with a fine of up to 5,000 baht. Walking shirtless in town, or wearing only swimwear in shops and restaurants, is not covered by any specific national ban we found, but most Thais see it as rude.
So the honest answer has two parts. One thing can be fined (nudity and exposing yourself in public). The rest is a matter of manners, and a visitor who ignores them may meet cold service, a polite request to cover up or, in some places, a local sign.
The short answer (October 2026)
- Topless sunbathing (women)
- Not named in law, but can fall under Criminal Code s.388; fine up to 5,000 baht
- Nude beaches
- None official that we know of; public nudity is the core of s.388
- Shirtless in town (men)
- No national ban found; widely seen as rude away from the beach
- Swimwear in shops, malls, restaurants
- No national ban found; cover up, it is expected
- Temples and palaces
- Strict dress codes of their own
What section 388 actually says
Section 388 of the Thai Criminal Code punishes anyone who "does a shameful act in public" by nakedness or by exposing the body, or who commits any other obscene act. The maximum penalty is a fine of 5,000 baht. There is no prison term: it is a petty offence, the lowest category in the Code.
The 5,000-baht ceiling was set by the Criminal Code Amendment Act (No. 22) B.E. 2558, in 2015. Many English translations online still show the older figure of 500 baht, so if you have read "500 baht", that text is out of date. A Thai legal database also notes that the courts have read "other obscene act" widely enough to include words.
The section does not mention beaches, bikinis or toplessness. It is a general public-decency rule, and whether a given situation is "shameful" is up to the police officer and, in the end, a court. That vagueness is the reason to be careful, not a loophole.
Topless sunbathing on Thai beaches
On a Mediterranean beach, going topless is normal. On a Thai beach it is not. Many Thai families swim in T-shirts and shorts. A topless sunbather is exposing her body in a public place, which is exactly the situation section 388 describes, so the risk of a fine is real even if enforcement is rare and unpredictable.
We know of no official nude or topless beach in Thailand. Remote coves and hotel pools do not change the law; a hotel may also set its own rules for its grounds. If you want to tan without lines, a private balcony is the only safe place.
A fine is not the only risk. The UK Foreign Office reports that since 28 August 2026 Thailand can deport foreigners without a criminal conviction if the authorities find their conduct contrary to public order or public morals. We have seen no case linked to beachwear, but it is one more reason not to test the limits.
Shirtless in town, in shops and on a scooter
We found no national law that bans a man from walking shirtless in the street, and no official page that sets a separate fine for it in Phuket, Pattaya or elsewhere. If a town or a shop puts up a sign asking visitors to dress properly away from the sand, follow it. Either way, a bare chest in a supermarket, a bank or a 7-Eleven is treated as bad manners, much as it would be in a city back home.
On a scooter the problem is your skin rather than the law. Helmets are compulsory for riders and passengers, according to the UK Foreign Office, and a bare back offers no protection in even a slow fall on hot asphalt. Long sleeves also keep off the sun on a long ride, which our page on heat and sun explains. Our guide to renting a scooter in Phuket covers the rest.
Bikinis, board shorts and the walk back from the beach
A swimsuit is fine on the beach and at the pool. The line is the road behind the beach. Walking into a shop, a café or a restaurant in a bikini or wet swim shorts is something many Thai owners dislike even when they say nothing. A simple cover-up, such as a sarong, a T-shirt or light shorts, solves it. Beach bars on the sand are more relaxed, but a sit-down restaurant across the road usually is not.
The same applies in transport. A longtail boat to the next beach is fine in swimwear; the ferry back to Phuket town, a minivan or a domestic flight is not. Bring something dry to change into.
Keep a cover-up in the beach bag. A sarong or a thin shirt weighs almost nothing and turns beach clothes into town clothes in seconds. It also gets you into a temple you pass on the way back, if it covers shoulders and knees.
Rude or illegal: a quick guide
| Situation | Law | How Thais see it |
|---|---|---|
| Topless or nude on a public beach | Can be fined under s.388 (up to 5,000 baht) | Offensive |
| Swimwear on the beach or at the pool | Fine | Normal |
| Shirtless or in swimwear in shops and restaurants | No national ban found; follow local signs | Rude |
| Shirtless on a scooter | No specific ban found; helmet compulsory | Careless more than rude |
| Shorts and vest at a temple or palace | Entry refused under the site's rules | Disrespectful |
Where the rules are stricter
Temples, palaces and royal sites have their own written dress codes, and they are enforced at the gate. Our guide to temple etiquette and dress explains what "covered" means, and the Grand Palace has the strictest list in the country. Dressing neatly is also sensible for any government office, such as an immigration office.
For what to pack, see how to pack for Thailand; for the wider list of things that offend, our article on what never to do in Thailand goes further. If you are choosing a beach, Phuket's beaches compared and Jomtien Beach describe the atmosphere on each.
Frequently asked questions
Is topless sunbathing illegal in Thailand?
No law names it, but section 388 of the Criminal Code fines anyone who exposes their body shamefully in public, up to 5,000 baht. A topless sunbather on a public beach fits that description, so treat it as not allowed.
Can men walk around shirtless in Phuket or Pattaya?
We found no national law against it and no official local fine. Away from the beach it is still considered rude, especially in shops, restaurants and on public transport, and if a local sign asks you to cover up, do so.
Are there nude beaches in Thailand?
Not officially. We know of no designated nude or naturist beach, and public nudity is the clearest case under section 388. Some private resorts set their own rules for their grounds, but that does not make the public beach in front of them legal.
Is the fine for public indecency in Thailand 500 baht?
Not any more. The maximum under section 388 was raised to 5,000 baht by an amendment in 2015. Older English translations that show 500 baht are out of date.
Sources
- Legardy – Criminal Code section 388, Thai text with amendment note (checked October 2026)
- UK Foreign Office – Thailand: safety and security (deportation rules, helmets) (checked October 2026)
- The Grand Palace – official visitor information and dress code (checked October 2026)