Bonjour,
J'ignore s'il existe une limite, mais il faut déposer une déclaration en douane si la somme "exportée" est supérieure à 50 000 Baths (soit environ 1000 Euros).
Source :
www.customs.go.th/...g.jsp?menuNme=Travel
Outbound passengers: Unlimited amount of foreign currencies are permitted to carry out of
Thailand. However, the amount of Baht 50, 000 or more in Thai currency must be reported on departure, except those traveling to Lao PDR.,
Myanmar,
Cambodia, Malaysia, and
Vietnam are allowed to take out Thai currency not exceeding 500, 000 Baht.