Most guides to cannabis in Thailand are really guides to Bangkok. That is fair — it is where most people land — but a lot of trips carry on to Chiang Mai, Phuket or Pattaya, and the question "is cannabis in Chiang Mai the same deal as in Bangkok?" gets asked constantly. The short answer is yes: Thailand has one national rulebook, and it applies on a Nimman side street exactly as it does on Sukhumvit. What changes from city to city is the setting, not the law.
One thing up front, so nobody is misled: Stash BKK's three branches are all in Bangkok. This post exists because our readers ask, not because we have a shop waiting for you in Chiang Mai. Everything below is as of September 2026.
One country, one rulebook
Wherever you are in Thailand, the same framework applies under current regulations:
- Cannabis flower is a controlled herb. Buying it requires a PT33 prescription from an authorised practitioner, issued after an assessment — not a form you fill in yourself.
- You must be 20 or older with valid ID or a passport.
- Only licensed sellers may dispense it, and since April 2026 those licences have to be anchored to a medical, pharmacy or herbal-product credential. Our post on what changed in 2026 explains why many shops have closed.
- No public smoking. Streets, beaches, parks, temples, transport, and anywhere smoke or smell reaches other people can be treated as a public-health nuisance.
- No borders. Never carry cannabis into or out of the country, in any direction.
If you understand those five points, you understand the law in every Thai city. The rest of this post is about how they play out in three very different places.
Chiang Mai
Chiang Mai is a mountain city with a large slow-travel and remote-work crowd, so it has had licensed shops since the market opened and still has them after the 2026 tightening. The rhythm is different from Bangkok: earlier nights, quieter streets, more guesthouses than towers.
Three things to know. First, the Old City and the temple districts are exactly where you should not smoke — they are public, they are sacred to a lot of people, and the tolerance for a visitor doing it is low. Second, national parks, waterfall trails and viewpoints around the city are public land; the fact that nobody is around does not make them private. Third, guesthouses and boutique hotels set their own rules, and many small properties are entirely non-smoking, so ask before you book — the same advice as in our hotel balcony guide.
Phuket
Phuket is where the "beach" question comes up, so let us be direct: a beach is a public place. Smoking cannabis on Patong, Kata, Karon or any other beach is public consumption, and beaches are also exactly where police and lifeguards spend their day. The same applies to boat trips, pool decks and hotel grounds.
Phuket's nightlife areas do have licensed shops, and the buying process is identical to Bangkok's: assessment, PT33, ID, licensed counter. Because so much Phuket accommodation is resort-style with shared grounds and balconies facing other rooms, the hotel-policy question matters more here than anywhere. Get it in writing or assume the answer is no.
Pattaya
Pattaya is close enough to Bangkok that people treat it as a day trip, which is exactly why they wonder about carrying cannabis down with them. Legally, Pattaya is under the same rules as everywhere else, and it has its own licensed shops, so there is no reason to carry anything on the bus or in a taxi. Walking Street and the beach road are public; the family beaches at Jomtien are public; the answer to "can I smoke here" is the same as in Bangkok.
Getting between cities: do not fly with it
A domestic flight is not an international border, and small personal amounts bought legally have not been an enforcement focus. But airline and airport policies are their own thing, security screening is unpredictable, and the regulatory position keeps evolving. The clean move is to buy at your destination from a licensed shop rather than fly with it, and the same logic applies to trains and long-distance buses. Our post on bringing cannabis in or out of Thailand covers domestic travel and airports in more detail.
Buy where you are, in the amount you will actually use, and finish it before you move on. You are never far from a licensed shop in a major Thai tourist city, and it means you never have to think about a bag search.
How to tell a licensed shop from a shopfront
After the 2026 renewal squeeze, the sign on the door tells you less than it used to. Wherever you are, look for the same things: a displayed licence, an assessment before any flower is dispensed, an ID check, no delivery offer, and no invitation to smoke on the premises. A shop that skips any of those is telling you something. Our checklist for weed shop vs licensed dispensary was written for Bangkok but applies in any city.
Starting or ending in Bangkok?
If your trip runs through the capital, all three Stash BKK branches — On Nut, Ari and Ekkamai — are open 24 hours, which suits the late-night airport arrival and the early departure equally well.
Cannabis flower requires a PT33 medical prescription under current Thai law. Stash BKK can facilitate an on-site telemedicine assessment, typically 10–15 minutes and 100 THB, subject to practitioner availability. The practitioner decides whether to prescribe. Bring valid ID or a passport and be 20 or older.
FAQ
Is weed legal in Chiang Mai in 2026?
The same as everywhere in Thailand: cannabis flower is a controlled herb available from licensed sellers to buyers aged 20 or older who hold a PT33 prescription from an authorised practitioner. There are no Chiang Mai-specific rules that make it looser or stricter than Bangkok.
Can I smoke weed on the beach in Phuket?
No. A beach is a public place, and public cannabis smoking can be treated as a nuisance offence under current rules. That applies to every beach in Thailand, not just Phuket.
Can I take cannabis from Bangkok to Chiang Mai on a domestic flight?
A domestic flight is not a border crossing, and small personal amounts have not been an enforcement priority, but airline and airport screening rules vary and the position keeps changing. Buying again at your destination is the zero-risk option.
Are the rules different in Pattaya?
No. Pattaya is under the same national framework: prescription, age 20+, licensed sellers only, no public smoking.
Does Stash BKK have a branch in Chiang Mai, Phuket or Pattaya?
No. Stash BKK operates only in Bangkok, at On Nut, Ari and Ekkamai, all open 24 hours.
Last reviewed: 13 September 2026. General information only, not legal advice. Local enforcement and hotel policies vary; verify current DTAM and Ministry of Public Health guidance before acting.
