The official currency in Ensenada, Mexico is the Mexican peso (MXN). The exchange rate can fluctuate, but as of August 2021, 1 U.S. dollar (USD) is equivalent to approximately 20.09 MXN. It is recommended to exchange currency at a local bank or use ATMs to get the best exchange rate. Many establishments in tourist areas also accept US dollars, but it is always better to have the local currency on hand.