Is weed legal in Thailand? Not in the way many travellers still assume. Cannabis is no longer on Thailand’s narcotics list, but recreational use is not legal. Since 26 June 2025 cannabis flower has been a “controlled herb” that licensed shops may sell only against a prescription. Smoking in public is punished as a public nuisance, and carrying cannabis into or out of the country is a serious crime, both in Thailand and at your destination.
The prescription rule comes from a Ministry of Public Health order signed by then Health Minister Somsak Thepsutin, which took effect once it was published in the Royal Gazette and reclassified cannabis buds as a controlled herb. A tougher step is now in the pipeline: on 22 September 2026 the Cabinet approved a draft Cannabis Control Act that would limit cannabis to medical use by law. It has been sent to the House of Representatives and is not yet in force.
Last checked: 19 October 2026. Thai cannabis rules are changing fast; check the latest status before you travel.
Key Takeaways
Cannabis in Thailand is legal only as medicine. Shops may sell flower only to customers who have a prescription, and a prescription covers no more than 30 days of use. Tourists fall under the same rule as Thais, so a visitor who wants to buy legally needs to be examined by a recognised Thai practitioner first; foreign prescriptions and US or UK medical cards carry no weight. Smoking in public can bring a fine of up to 25,000 baht, up to three months in jail, or both, with or without a prescription. Extracts containing more than 0.2% THC, including hash, remain Category 5 narcotics, while CBD and other extracts at or below 0.2% THC are not narcotics. The legal shop network is shrinking fast: 7,297 shops closed in 2025 when their licences ran out, and stricter licence rules took effect in April 2026. Taking cannabis out of Thailand is a crime there, and bringing it home is a crime in almost every destination country. The Cabinet-approved bill would turn the medical-only model into an Act of Parliament, but until it passes, the June 2025 prescription rules are what applies.
Thailand Cannabis Laws at a Glance
| Question | Status in October 2026 |
|---|---|
| Recreational use | Not permitted. Flower is a controlled herb for medical use |
| Buying flower | Only with a prescription, from a licensed shop |
| Medical cannabis | Legal. A prescription covers up to 30 days |
| Minimum age | 20 |
| Smoking in public | Public nuisance: fine up to 25,000 THB and/or up to 3 months in jail |
| Extracts above 0.2% THC (including hash) | Category 5 narcotic. Illegal |
| CBD and extracts with ≤0.2% THC | Not narcotics |
| Home growing | Registration through the Plook Ganja app requires a Thai ID number |
| Bringing cannabis in or out of Thailand | Illegal. Customs and narcotics charges |
| Advertising and online sales | Banned |
| How to check a shop | DTAM licence sticker with expiry date, or the MC-GIS online map |
Is Weed Legal in Thailand for Tourists?
No, not in the way it was between 2022 and mid-2025. When Thailand removed cannabis from its narcotics list on 9 June 2022, thousands of shops opened and anyone could walk in and buy flower. That period ended on 26 June 2025, when the Ministry of Public Health notification reclassified the flower as a controlled herb under the Thai Traditional Medicine Act. Since then a shop may sell only to a customer holding a prescription, and only enough for personal use over 30 days.
Tourists get no separate category. According to an analysis by the law firm Tilleke & Gibbins, a valid prescription can come from seven kinds of practitioner: medical doctors, Thai traditional medicine doctors, applied Thai traditional medicine doctors, folk healers, Chinese medicine practitioners, pharmacists and dentists. Prescriptions are written on an official paper form known as Phor Thor 33 (PT 33). The same analysis notes that the 2025 notification says nothing about teleconsultations or online prescriptions.
The government expects a real consultation, not a signature on a stack of blank forms. In August 2026 it warned dentists that signing PT 33 forms in advance, without examining or diagnosing the patient, could breach four laws and Clause 17 of the Dental Council’s ethics rules, and said offenders would face strict legal action. Put simply: if a shop hands you a pre-signed prescription along with your purchase, that paper is unlikely to protect you.
Enforcement is uneven, and Thai officials say so themselves. In June 2026 the House Public Health Committee met to discuss whether cannabis should go back on the narcotics list, after concerns that informal sales and unregistered cultivation remained widespread and that many sales channels sat outside the legal system. The fact that someone can still buy cannabis without a prescription does not make that purchase legal.
Buying Cannabis: What Shops Can and Cannot Do
- Prescription only. Licensed shops may sell flower only against a prescription, up to a 30-day supply.
- Certified supply. Since 26 June 2025, flower sold or exported must come from farms certified under Good Agricultural and Collection Practices (GACP), according to Tilleke & Gibbins.
- No advertising, no online or vending-machine sales. Both are banned.
- Penalty for sellers. Breaking the prescription rule can bring up to one year in jail and a fine of up to 20,000 baht.
- Licence suspensions. Under guidelines issued in June 2026, the Department of Thai Traditional and Alternative Medicine (DTAM) can suspend a shop’s licence for 30 to 90 days, and revoke it for a repeat breach. Failing to display the licence or advertising cannabis can alone lead to a 30-day suspension.
- Stricter licences since April 2026. Ministerial Regulation (No. 2) B.E. 2569, in force since 30 April 2026, limits licences to registered healthcare facilities, pharmacies and herbal product stores. As the law firm Mahanakorn Partners summarises it, at least one employee who has completed DTAM’s cannabis training must be on site during opening hours, flower must be stored in dedicated facilities, premises need an effective system to remove smell and smoke, and a past suspension can count against a renewal.
How to tell whether a shop is licensed
DTAM has introduced a sticker for licensed shops. As Thairath reported in May 2026, each sticker shows the shop name, the licence expiry date and an 8-digit establishment code. The same licences, cultivation sites and expiry dates can be checked on DTAM’s MC-GIS map at cannabis-gis.dtam.moph.go.th or in the Mor Prom app. A missing sticker, or a sticker with a past expiry date, is a clear warning sign.
Why there are fewer shops every month
Public Health Ministry data reported by The Nation shows 18,433 cannabis shops operating as of 28 December 2025. Licences for 8,636 of them expired during 2025; only 1,339, or 15.5%, were renewed, and 7,297 shops closed, leaving 11,136. The ministry also said 4,587 licences are due to expire in 2026 and 5,210 in 2027. On 22 September 2026, Health Minister Pattana Promphat said more than 10,000 shops and cultivation sites, over 95% of existing operations, had been entered into a government tracking system, and that anyone outside it should be presumed to be operating illegally.
These are official figures and have not been independently audited. They count licences and premises, not businesses, so one operator with several branches appears several times. For the full story of how the market contracted, see our reports on how Thailand tightened its cannabis rules and on the wave of shop closures and the new bill.
Can You Smoke Weed in Public in Thailand?
No. Smoking cannabis in public places is treated as a public nuisance. The Tourism Authority of Thailand has warned visitors since 2022 that the penalty can be up to three months in jail and a 25,000 baht fine. A prescription does not change this: it allows you to buy and possess a limited amount, not to light up on a beach or in the street. Hotels, guesthouses and condominiums can also set their own bans, so a private room is not automatically a safe place either.
CBD, Hemp Products and the 0.2% THC Limit
The dividing line in Thai law is 0.2% THC by weight, and it applies to extracts, not to dried flower. Extracts at or below that level, which includes most CBD oils, are not narcotics. Extracts above it, including hash and most concentrates, are Category 5 narcotics under the Narcotics Code of 2021 and remain illegal.
Commercial work with high-THC extracts has also been narrowed. A separate ministerial regulation that took effect on 26 April 2026 allows licences for extracts above 0.2% THC only for medical, research, industrial and government narcotics-control purposes, and only to Thai juristic persons that are not foreign-owned, government agencies and the Thai Red Cross Society. Licences issued under the 2020 and 2021 rules remain valid only until 31 December 2026, according to the Mahanakorn Partners summary.
For a tourist the practical takeaway is simple: a CBD product sold openly in a pharmacy or shop is a different legal category from a vape cartridge or a lump of hash, and the second can put you in the narcotics system.
Can You Grow Cannabis at Home in Thailand?
Not as a visitor. Since decriminalisation in 2022, people who want to grow at home have had to register through the Food and Drug Administration’s Plook Ganja app and website. Registration requires a Thai ID number, so foreign tourists cannot register a grow. The Cabinet-approved bill would require growers to register the size and location of their plots as small, medium or large sites; how it would treat personal home grows is not yet clear.
Taking Cannabis Into or Out of Thailand
This is where most foreigners get into serious trouble. Bringing cannabis or cannabis products into Thailand is illegal, and so is taking them out without the required approvals. Customs, narcotics and traditional-medicine laws can all apply at once.
- Phuket, July 2026. On 7 July police at Phuket airport arrested a 21-year-old Belgian woman with about 31.7 kg of cannabis in two suitcases. She was charged under the Customs Act, the Narcotics Code, the Thai Traditional Medicine Act and the 2025 notification. Two days later customs officers arrested two women, one Thai and one Filipino, with more than 32 kg between them.
- The UK. Britain’s National Crime Agency reported that 184 of 378 cannabis smuggling arrests of air passengers in 2024, up to mid-August, involved cannabis that originated in Thailand. The maximum sentence for importing cannabis into the UK is 14 years. In one recent case, a woman arrested at Heathrow on 6 July 2026 after a flight from Bangkok with 51.2 kg of cannabis pleaded guilty in August.
- Use abroad can count at home. Under Singapore’s Misuse of Drugs Act, citizens and permanent residents commit an offence if they consume controlled drugs, including cannabis, overseas.
- The region is far stricter. Singapore and Indonesia can impose the death penalty in serious drug trafficking cases.
A medical card from home does not help. The roughly 3.9 million Americans registered in state medical cannabis programs and the patients behind the UK’s 1.7 million private cannabis prescriptions hold documents that have no legal effect in Thailand, and a Thai prescription has no effect at the border on the way back.
The simple rule: whatever you buy in Thailand stays in Thailand and is used in private.
What Has Changed Recently
- 9 June 2022: cannabis removed from the narcotics list.
- 26 June 2025: flower becomes a controlled herb; sales require a prescription.
- 2025: 7,297 shops close as licences expire without renewal.
- 26 April 2026: a new regulation for extracts above 0.2% THC takes effect.
- 30 April 2026: Ministerial Regulation (No. 2) B.E. 2569 tightens licence conditions for shops.
- June 2026: DTAM issues stricter suspension guidelines; the House Public Health Committee reviews whether cannabis should return to the narcotics list.
- August 2026: the government warns dentists against pre-signing cannabis prescriptions.
- 22 September 2026: the Cabinet approves the Cannabis Control Bill and sends it to the House of Representatives.
What the New Cannabis Control Bill Would Change
According to the Bangkok Post’s account of the Cabinet decision and The Nation’s report, the bill would limit cannabis and its extracts to medical treatment and research, introduce three-year DTAM licences for growing, producing, importing, exporting and selling flower and extracts, ban advertising of cannabis and paraphernalia, and prohibit sales to people under 20 and to pregnant or breastfeeding women. Illegal production, import, export and sale would carry criminal penalties, while people who misuse cannabis would face fines rather than prison. Existing shops could keep trading until their licences expire between 2026 and 2028; after that, only premises that qualify as medical facilities could renew.
Two caveats matter. Parliament still has to pass the bill, and earlier attempts at a cannabis law stalled before reaching the statute book. The provisions above are those reported by Thai media in September 2026 and may change in committee, including the penalty amounts. Until the bill becomes law, the June 2025 prescription rules apply.
Frequently Asked Questions
Only for medical use. Cannabis is not a narcotic, but since June 2025 licensed shops may sell flower only to people with a prescription, and recreational use is not permitted. A stricter medical-only bill was approved by the Cabinet in September 2026 but is not yet law.
Only with a prescription issued by a recognised Thai practitioner after an individual consultation, and only from a licensed shop. A prescription covers up to 30 days. Foreign prescriptions and medical cards are not accepted.
Yes. CBD and other cannabis extracts containing no more than 0.2% THC by weight are not narcotics. Extracts above 0.2% THC, including hash and most concentrates, are Category 5 narcotics and are illegal.
No. Bringing cannabis into the United States from abroad is illegal under federal law, even if you land in a state where adult use is legal and even if you hold a Thai prescription or a US state medical card. The April 2026 move of state-licensed medical marijuana into Schedule III did not legalise importing it. US Customs and Border Protection can seize the product, and you can face federal charges as well as charges in Thailand for exporting it.
Legal Disclaimer
This guide is provided for informational and journalistic purposes only and does not constitute legal or medical advice. It describes Thai rules in force and a draft law as reported by official sources and the media up to October 2026. Thai cannabis regulations have changed several times since 2022 and may change again, including when Parliament considers the Cannabis Control Bill. The laws of your home country and of any country you pass through may also apply to you. Nothing in this article encourages the purchase, possession, use or transport of cannabis. Anyone with questions about their legal position should consult a qualified lawyer, the relevant Thai authorities or their own country’s embassy.
