As of October 2026, cannabis flower in Thailand may only be sold to you with a prescription issued in Thailand, for medical use and for no more than 30 days. Recreational use is not legal, smoking it in public can be treated as a nuisance, and taking cannabis out of the country is a customs offence with fines from 30,000 baht per kilogram.
Many visitors still arrive believing Thailand "legalized weed" in 2022. It did not. In June 2022 the plant was taken off the narcotics list, and for three years thousands of shops sold flower with very little control. That period is over. Since late June 2025 a Ministry of Public Health notification has kept cannabis flower as a "controlled herb" and made sales to the public prescription-only. Cannabis has not been put back on the narcotics list, but the space for a tourist to buy and use it legally is now very small.
This page explains the rule as it stands, what it means for a visitor and what can go wrong. It belongs to our health and safety section, which also covers alcohol, vapes and medicines. It is not legal advice. Rules on cannabis in Thailand have changed several times in four years, so check the sources at the end before you act on anything here.
Cannabis rules for visitors (checked October 2026)
- Legal status
- Flower is a "controlled herb", not a narcotic; extracts above 0.2% THC are still narcotics
- Buying flower
- Only with a prescription issued in Thailand, for medical use, maximum 30 days' supply
- Foreign prescription or card
- Not accepted; the Tourism Authority of Thailand says the prescription must be issued in Thailand
- Recreational use
- Not permitted
- Smoking in shops
- Shops may not sell flower for smoking on the premises (except treatment given by an authorized practitioner)
- Taking it out of Thailand
- Up to 10 years in prison and/or a fine; Customs fines from 30,000 baht per kg since 17 June 2026
- Report illegal sales
- ONCB hotline 1386 (24 hours)
From delisting in 2022 to prescription-only in 2025
On Thursday 9 June 2022 the cannabis plant, including the flowers, was removed from Thailand's Category 5 narcotics list. Extracts with more than 0.2 percent THC stayed on the list. The change came without a full cannabis law to regulate the market, and shops opened in every tourist area, often selling to walk-in customers with no medical purpose at all.
The 2025 change closed that gap. The Ministry of Public Health issued a new Notification on Controlled Herbs (Cannabis) under Thailand's traditional medicine law, replacing the November 2022 notice. Official sources give slightly different start dates: the Tourism Authority of Thailand (TAT) says the rule took effect on 23 June 2025, while the Office of the Narcotics Control Board (ONCB), as reported in July 2026, says it was published in the Royal Gazette on 25 June 2025 and took effect the next day. For a visitor the exact day no longer matters. The point is that the rule has been in force for more than a year.
In July 2026 the ONCB and a government spokesperson repeated the position publicly: cannabis flower remains a controlled herb, and retail sales are prescription-only. We found no official source, as of October 2026, showing that a new cannabis act has been passed or that the plant has been put back on the narcotics list. Ministers have talked about doing so in the past, which is why this page carries a date.
What "prescription-only" means if you are a tourist
A shop may sell flower to a member of the public only against a prescription for medical purposes, covering no more than 30 days of treatment. The prescription must come from an authorized practitioner. The government spokesperson listed physicians, Thai traditional medicine practitioners, folk healers, pharmacists and dentists. TAT's notice for tourists is blunt: visitors are "strictly prohibited" from using, buying, carrying or transporting cannabis flower without a valid prescription issued in Thailand.
Three consequences follow for a visitor:
- A medical card or prescription from home does not count. TAT requires a prescription issued in Thailand.
- A "consultation" at the counter is not automatically legal. TAT warns that shops offering cannabis for smoking, especially to walk-in customers, "may be operating outside the law", and that products on public display should not be assumed to be legal.
- Buying from a seller without a license puts you in the middle of an illegal sale. The seller is the one the law clearly punishes, but you can lose the product, your time and possibly your trip.
We could not find an official statement setting out a specific penalty for a tourist who buys or possesses flower without a prescription, as distinct from the seller's offence. That gap is not permission. TAT says unauthorized use, possession or purchase "remains illegal", and the UK government's travel advice (updated September 2026) says you must not buy, possess or use cannabis without a Thai-issued prescription. If you have a genuine medical need, see a doctor in Thailand (our guide to hospitals in Thailand explains private and public options) and bring your own medical records; our page on bringing prescription medicine into Thailand covers the paperwork for medicines you already take, and the guide to what pharmacies sell over the counter explains what you can buy without a prescription.
What licensed shops may and may not do
Many cannabis shops are still open in Bangkok, Phuket, Pattaya and on the islands, and some of them operate legally as licensed outlets. The 2025 rules limit what any of them may do:
| Activity | Rule (October 2026) |
|---|---|
| Selling flower to the public | Only against a prescription, max 30 days |
| Smoking flower at the shop | Not allowed, except treatment given by an authorized practitioner |
| Online, social media or vending-machine sales | Banned |
| Advertising flower | Banned through any channel |
| Selling at temples, dormitories, public parks, zoos, amusement parks | Banned |
| Commercial selling, processing or exporting | Needs a license under Section 46 of the traditional medicine law |
For the seller, illegal sales (including sales without a prescription) are punishable under Section 78 of that law by up to one year in prison, a fine of up to 20,000 baht, or both. Police and health officials raided shops in Phuket in July 2026 over suspended licenses, so a shop that was open last season may not be today.
A cannabis shop being open is not proof that buying there is legal. Thousands of shops opened under the 2022 rules and many have not adapted. If a shop sells you flower without a Thai prescription, it is breaking the 2025 rule, and you are the one carrying the product out of the door.
Smoking in public, at your hotel and on the beach
Smoking cannabis where other people can smell it is treated as a public nuisance under Thai public health rules. Blogs quote specific fines and jail terms for this, but we could not confirm the current figure on an official page, so we do not print one. What is certain is that recreational use is not legal at all under the current rule, so the question of where you smoke comes after the question of whether you may possess it.
Two other rules often overlap. Thailand bans smoking of any kind in many public places, and a list of popular beaches, including Patong, has been non-smoking since 2018. Most hotels and condominiums also forbid smoking in rooms and charge cleaning fees. And all vapes and e-cigarettes are illegal to possess or use in Thailand, including cannabis vape pens; the UK advice says there are no exceptions for tourists. Alcohol has its own sales hours and ban days, explained in our page on when you can buy alcohol. Our article on things never to do in Thailand covers the vape ban and other rules that surprise visitors.
Taking cannabis out of Thailand
This is where tourists get into the most serious trouble. Taking cannabis out of the country without customs formalities, or trying to avoid inspection, can bring up to 10 years in prison, a fine of four times the duty-inclusive value, or both, plus confiscation. Since Wednesday 17 June 2026 the Customs Department calculates fines at 30,000 baht per kilogram. The UK travel advice adds that if you cannot pay you will be detained or imprisoned, and that you will be placed on an immigration watchlist that affects future visits.
Arrests are routine: in one week of July 2026 alone, Thai media reported two separate seizures of suitcases of cannabis at Phuket airport. Then there is the country you fly to. Cannabis is illegal in many countries, including several of Thailand's neighbors and the main hubs for onward flights in Asia, and penalties there can be far heavier than in Thailand. Our guide to Thai customs rules covers what else you may and may not carry. Even a small amount of leftover flower, a pre-roll or an edible in your bag can lead to arrest on arrival or in transit. The Thai government's own message in July 2026 was simply to obey the law of the country you are going to. Do not pack it, do not carry a parcel for anyone, and check your bags before you go to the airport.
Edibles, drinks and "CBD" products
Food and drinks with cannabis or hemp ingredients are sold in some cafés and shops, and products labeled "CBD" are common. Cannabis extracts with more than 0.2 percent THC are still classified as narcotics, and a visitor has no practical way to check what a cookie or a gummy contains. Effects from edibles also start late and last long, which leads people to take a second dose. If you or a friend feel unwell, call 1669 for an ambulance; our list of emergency numbers in Thailand has the others. Do not take any cannabis product onto a plane, whatever the label says. At party events such as the Full Moon Party, police run drug checks, and products of unknown strength are an added risk.
Read the date on any cannabis advice you find online. Pages written between mid-2022 and mid-2025 describe a market that no longer exists. This page was checked against TAT, the UK FCDO and ONCB statements in October 2026.
Frequently asked questions
Is weed legal in Thailand in 2026?
Not for recreational use. Cannabis flower is a controlled herb that may only be sold with a Thai prescription for medical use, covering at most 30 days. It is not on the narcotics list, but buying it as a tourist without a Thai prescription is not legal.
Can I use my medical cannabis prescription from home?
No. The Tourism Authority of Thailand says the prescription must be issued in Thailand by an authorized practitioner. A foreign card or prescription does not let you buy flower in a Thai shop.
Can I take cannabis home from Thailand?
No. Exporting it without permission can mean up to 10 years in prison and Customs fines from 30,000 baht per kilogram, and it is illegal in most countries you might fly to. People are arrested for this at Thai airports regularly.
Has Thailand made cannabis a narcotic again?
Not as of October 2026. The 2025 rule kept flower as a controlled herb under the traditional medicine law and made sales prescription-only. Politicians have discussed relisting it, so check the latest official notice before you travel.
Who do I contact to report illegal cannabis sales?
The Office of the Narcotics Control Board runs a 24-hour hotline on 1386 for reports of illegal sales or drug use causing a nuisance. The Food and Drug Administration hotline named in TAT's notice is 1556.
Sources
- Tourism Authority of Thailand – Cannabis flower now strictly regulated in Thailand: important notice for tourists (checked October 2026)
- UK FCDO – Thailand travel advice: Safety and security (checked October 2026)
- The Nation – Cannabis buds remain prescription-only, ONCB warns retailers (12 July 2026) (checked October 2026)
- The Nation – Thailand strengthens controls on cannabis flower sales and exports (17 July 2026) (checked October 2026)