Reviewed Sep 2026Medical only

Cannabis in Chiang Mai

Chiang Mai had 823 licensed cannabis businesses when flower went prescription-only in June 2025. Verdex lists four, from Old City to Nimman.

This page is about Thailand — not the country you picked in the header.

Sellers listed: 4
Minimum age: 20+

Ranked

Every rated seller in Chiang Mai

All seller types, ranked by Verdex score. Filter by service or pick a type above.

Sort

Showing 4 of 4 sellers in Chiang Mai

Map 1 pin

Pins show sellers with a published street address. Online-only sellers appear in the list only.

The rules

Key rules in Thailand

Plain-language summary. The regulator is Chiang Mai Provincial Public Health Office (licensing on behalf of DTAM).

Legal status
Cannabis flower is a controlled herb; sale only on a PT33 prescription since June 26, 2025.
Minimum age
No sales to people under 20, pregnant women or breastfeeding women.
Possession
Legal when covered by a valid PT33 prescription; foreign prescriptions are not recognized.
Public use
Smoking in public can be treated as a nuisance under the Public Health Act; fines reported up to THB 25,000 and/or up to 3 months.
On-premises use
Consumption at licensed sales premises is not allowed.
Where to buy
Licensed clinics, hospitals and dispensaries; renewals since May 1, 2026 require medical or herbal premises with trained staff present.
Home grow
Not addressed in the sources Verdex reviewed; flower sold must come from GACP-certified licensed farms.
Travel
Bringing cannabis into Thailand from abroad is treated as drug trafficking; do not carry it across any border.
Driving
No specific THC limit found in the sources reviewed; do not drive after use.

Summary, not legal advice — rules change; check local law. Last reviewed Sep 2026.

How it works

How cannabis is sold in Chiang Mai

Chiang Mai province counted 823 licensed cannabis businesses on the day the rules changed, and Verdex lists four of them.

823

licensed cannabis businesses in Chiang Mai province, across 22 districts

Provincial public health doctor Waranyu Jamnongprasartporn, reported by Chiang Mai CityLife, 27 June 2025

300+

of them in Mueang Chiang Mai district

Same report

Chiang Mai sellers on the Verdex register: three dispensaries and one clinic

Verdex register, September 2026

Old City to Nimman

Haze Buds runs three outlets by the Sunday and Saturday walking streets and the Night Bazaar, with 145/7 Rajdamnern Road as its listed address. Space Trees is at 13 Siri Mangkalajarn Road, growing its own flower. Over in Nimman, The Spot on Nimmana Haeminda Road Lane 11 opens 11:00 to 22:00 and offers help arranging a PT33. Treehouse is a clinic-dispensary on Loi Kroh Road.

What the counter can and cannot do now

Existing licences were not revoked, the provincial doctor said, but businesses could no longer sell flower freely. Prescriptions cover at most a 30-day supply, and the Narcotics Control Board says illegal sales can bring up to a year in prison and a 20,000 baht fine. Full tourist rules are in the Thailand guide, and the Chiang Mai hub has the provincial list.