Is weed legal in Thailand? This question has drawn growing attention from travelers, expats, and the media as Thailand flips its policy. Once among the most liberal in Asia, cannabis laws in Thailand have changed dramatically in 2025. In this article, Bangkokways unpacks the legal framework, what use is allowed (if any), what you should avoid, and the real risks for tourists. Whether you’re curious or cautious, here is the updated guide to “weed in Thailand.”
Is Weed Legal in Thailand: Current Status
As of mid-2025, weed is not broadly legal in Thailand. The government has rolled back many of the relaxed policies introduced in 2022, shifting toward a stricter medical‐only model.
Cannabis flower (the bud) is now classified as a controlled herb, and recreational sales or distribution without proper authorization or prescription are prohibited.
That said, limited medical cannabis usage—with a valid prescription from a licensed physician or traditional medical practitioner—is still permitted under regulation.
Extracts or products containing only ≤ 0.2% THC may still exist in a gray zone, but stricter laws and enforcement have created uncertainty across the country.
Historical Context & Legal Evolution
Thailand historically had very strict cannabis laws: possession, sale, and cultivation were criminalized under the Narcotics Acts of 1935 and 1979.
In 2018, medicinal cannabis was first legalized in a controlled manner. In June 2022, cannabis was removed from the country’s narcotics list, effectively decriminalizing many forms of use.
That liberalization led to a rapid expansion of cannabis shops, with weak regulatory oversight.
By mid-2025, concerns about youth access, recreational misuse, and lax regulation prompted the government to reassert control. On 25 June 2025, a ministerial notice reclassified cannabis flower as a controlled herb and banned recreational sales.
Additionally, a new requirement is emerging that buyers show medical prescriptions for cannabis purchases.
Weed Laws in Thailand: What You Can and Cannot Do
Medical Use Only (with Conditions)
Medical cannabis is restricted to use under prescription from qualified professionals (doctors, dentists, licensed traditional medicine practitioners).
You may only obtain it via registered dispensaries; recreational shops that fail to comply may be shut down.
Public Use & Smoking Restrictions
Smoking cannabis in public is considered a public nuisance under the Public Health Act (1992), punishable by fines.
Also, minors (under 20), pregnant or breastfeeding women are prohibited from cannabis use.
Recreational Use & Advertising Bans
Recreational use is no longer tolerated without a prescription. Advertising cannabis products is restricted or banned.
Cultivation & Business Licensing
Cannabis cultivation must be certified, registered, and tracked under strict regulations. Dispensaries must report supply chains monthly.
Violators may face fines, closure, or even criminal penalties.
Implications for Tourists & Travelers
If you’re visiting Thailand, don’t assume weed is free to use. The shifts in law make misunderstandings dangerous.
Using cannabis recreationally without a prescription can result in fines, legal trouble, or deportation, especially in tourist zones.
Possession beyond permitted amounts or intent to sell is treated harshly under narcotics laws.
Always carry proof of prescriptions (if you legally hold any) and avoid public smoking.
As regulations and enforcement evolve, different regions (such as Bangkok, Phuket, and Chiang Mai) may interpret laws differently. Checking local rules and relying on certified dispensaries is safer.
Recent Changes & Political Context
The reversal of cannabis liberalization in 2025 is tied to a political shift. The Bhumjaithai Party, which had previously championed decriminalization, left the governing coalition in June.
Health Minister Somsak Thepsuthin signed the new order, emphasizing the protection of youth and public health.
Some advocates argue the rush is politically motivated and that small dispensaries will suffer disproportionately.
How to Stay Within the Law
- Before considering any cannabis use in Thailand, verify whether a valid medical prescription is required and accepted locally.
- Only purchase from official, licensed dispensaries — ask to see certifications.
- Do not consume in public places, as local police may enforce public nuisance fines.
- Avoid traveling across provinces or borders with cannabis.
- Stay updated—laws may continue to evolve, and regional enforcement may differ.
FAQs About Weed in Thailand (Updated 2025)
Not exactly. Cannabis has been reclassified as a controlled herb. Recreational sales and use are banned unless prescribed by a licensed medical professional.
While some Reddit users report that dispensaries still operate, enforcement is inconsistent. Smoking or using cannabis in public can still lead to fines, even for tourists.
No. Smoking cannabis in public is prohibited and considered a public nuisance. You may only smoke privately in permitted spaces.
Selling or using weed without a prescription can lead to imprisonment of up to one year and fines up to 20,000 baht. Public smoking also carries heavy fines.
Only at licensed shops and for medical or low-THC products. Recreational weed is no longer legally sold.
Final Thoughts: Navigating Thailand’s New Cannabis Reality
Thailand’s cannabis landscape has shifted rapidly, leaving both locals and tourists navigating a complex new reality. While weed is no longer fully illegal, it’s not a free-for-all either. Understanding the latest laws, following local regulations, and using cannabis responsibly are essential for a safe and enjoyable experience.
The key takeaway? Always stay informed — especially as Thailand continues to refine its cannabis policy in 2025. For tourists, it’s best to enjoy within legal limits, avoid smoking in public, and purchase only from licensed dispensaries.
The above guide from Bangkokways has provided an in-depth look at is weed legal in Thailand, clarifying what’s allowed, what’s restricted, and what travelers should know before lighting up. Hopefully, these insights from Bangkokways will help you explore Thailand’s evolving cannabis scene with confidence and caution.
To discover more updates and useful travel insights about Thailand, don’t forget to check out other articles in the “Thailand News” section of Bangkokways.