The local currency in Guadeloupe is the Euro. Although U.S. dollars may be accepted at some locations, it’s best to rely primarily on major credit cards for larger purchases, and cash for small purchases. Be sure to check with your credit card company to see if you’ll be charged foreign currency conversion fees. Visa and MasterCard are generally accepted, but most merchants do not accept American Express or Discover cards.
You’ll need your ATM card to obtain Euros for smaller purchases. You must establish a 4 digit PIN for your account prior to departure or your card may not be accepted by ATMs on the island.