Chiang Mai’s cannabis scene transformed on June 26, 2025, when Thailand shifted from one of Asia’s most accessible cannabis markets to a medical-only framework requiring an authorized prescription for all purchases. Thailand’s roughly 18,000 cannabis shops faced new medical-use compliance requirements almost overnight, fundamentally changing how tourists and locals access cannabis in Northern Thailand. Whether you’re planning a trip to Thailand’s cultural capital or already navigating the new regulations on the ground, this guide covers everything you need to know, from obtaining your PT33 prescription to finding dispensaries that remain compliant and operational.
