Thailand’s new cannabis laws

Thailand decriminalised cannabis in 2022. Thai authorities believed that the removal of cannabis from Thailand’s banned narcotics list would mean a boost for local agriculture. It was also thought that the relaxation in laws could provide a boost for tourism. However, the move proved to be highly controversial.

In June 2025, new rules were introduced for the use of cannabis in Thailand. Thai authorities say all visitors to Thailand should take note of the changes. Notably, cannabis flower is now officially classified as a controlled herb under Thai law. This change comes under a new directive issued by the Ministry of Public Health and replaces the previous guidelines from November 2022. This means that the use of cannabis is now restricted to medical use only.

What does the law say?

Under the revised framework for cannabis, medical access now requires an authorised prescription. For individual treatment, patients must obtain their cannabis through a licensed medical professional. It is now illegal to use, carry, purchase, or transport cannabis flowers unless the user holds a valid prescription issued by a licensed Thai practitioner in traditional medicine, Chinese medicine, or dentistry. Even with a prescription, cannabis flower must only be used for legitimate medical treatment and cannot exceed a 30-day supply.

• The purchase of cannabis from vending machines or through online platforms has been banned.
• All forms of cannabis advertising are now forbidden.
• Selling cannabis is prohibited in temples, dormitories, public parks, zoos, and amusement parks.

Smoking cannabis

Thai officials continue to emphasise that smoking cannabis or hemp in public places is (and always has been) prohibited. Although enforcement has often been overlooked in the past, Thai authorities state that nationwide enforcement is now being stepped up. Violators risk large fines and a potential jail term.

Cannabis products openly sold in tourist areas (especially those marketed for smoking and targeting walk-in customers) are not always legal. Many of these vendors may be operating without proper licenses. Travellers should not assume that cannabis on display is either legal or safe to use. Thai authorities have increased enforcement efforts, with heightened surveillance and crackdowns on unlicensed sellers, particularly in popular tourist zones.

Medicinal use

In 2018, Thailand became the first country in Asia to legalise the use of medicinal cannabis. Thailand has a tradition of using kratom in traditional medicine. The kratom plant is native to South-East Asia and its leaves are used as a natural stimulant and as a painkiller. The use of kratom was previously banned, but was legalised again in 2021. A number of cannabis-based medicines are now included in the list of national drugs which means that public hospitals in Thailand can prescribe cannabis remedies to patients under the universal healthcare scheme.

Food and drink

Cannabis can be used in food and drink, but products must contain less than 0.2% of THC. Across Thailand, there are now restaurants and cafes selling cannabis-infused food and drinks.

Import and export

Importing or exporting products containing cannabis across the Thai border is not permitted.

Carrying cannabis in or out of Thailand is illegal
Without exception, you should always pack your own luggage and never carry anything through customs for someone else. Carrying cannabis out of Thailand is a criminal offence.

TravelAware campaign (UK government advice)

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