Share Which currency will I need in South America? by Dan on 15th August, 2018 Take some US dollar cash with you, as this is a good back-up currency in South America if you run out of local currency. Most countries and cities have plenty of ATMs for you to withdraw the local currency. Let your bank know where and when you are travelling to avoid your card potentially being blocked. It’s best to withdraw money in country as ordering in advance usually means a very bad exchange rate. The currencies are: Ecuador (US dollar); Peru (Sol); Bolivia (Boliviano); Chile (Chilean Peso); Argentina (Argentine Peso); Brasil (Real); Guyana (Guyanese dollar); Uruguay (Uruguayan Peso); Colombia (Colombian Peso); Cuba (Cuban Peso); Namibia (Namibia dollar); Paraguay (Guarani). Share