Thai laws every travelling couple should know: vaping, cannabis, photos and adult content

Thailand has laws that surprise many travellers, and several affect couples who like sharing photos or going out at night. This guide summarises the UK FCDO advice (consulted in November 2026) and flags which facts come from secondary sources.

Vaping and smoking

The FCDO is clear: it is illegal to possess or use any vape, e-cigarette, pod, e-liquid or heat-not-burn device, with no exceptions for tourists or personal use. Public smoking is also illegal.

Cannabis and drugs

Cannabis use is restricted to medical purposes with a Thai-issued prescription (maximum 30-day supply); recreational use remains illegal, and taking it out of the country without permission carries fines, detention and an immigration watchlist entry. Drug laws are strict and possessing Class A drugs can lead to the death penalty.

Images and social media

The FCDO warns that posting images of people drinking alcohol or wearing clothing considered inappropriate can be illegal, with fines or prison for both the uploader and those pictured. On adult content, a Thai law firm summarises that Section 287 of the Penal Code punishes making, possessing, displaying or advertising obscene material with up to three years in prison or a fine of up to 60,000 baht (secondary source, unverified translation): do not carry or share explicit content. Material involving anyone under 18 is far more serious.

Monarchy, politics and deportation

Criticising the monarchy (lese-majesty) is illegal, can be interpreted broadly, and sharing articles online has led to charges. Avoid protests. Foreign nationals can be deported without a criminal conviction if their conduct is judged contrary to public order or morals.

This is not legal advice: check current official sources before you travel.