Assessment of marine sites is a priority task in the inventory of potential marine areas for fishfarming, which is important in terms of investment costs/operation and profitability derived from the growth andsurvival of the species to cultivate. In general, the oceanographic characteristics of the site determine the efficiency and technical, operational and economic feasibility of the crop. The potential of open coastal waters adjacentto the town of Boca Ambuila, Cienfuegos, south central region of Cuba was assessed. This was done on the basisof previous studies (2008), oceanographic surveys during dry and in rainy season (April to September 2011),a diurnal cycle of temperature, oxygen and measurement of currents in August 2011. Although average annualtemperature in the region is 27.6 to 28.8ºC, mean values of 27.5°C were recorded in April/2011 to 30.9°C in August/2011, and extreme values of dissolved oxygen of 6.9 mg and 4.9 mg L-1 respectively in April and September2011. The current site reported 10 to 15 cm s-1, but in August 2011 lower values were recorded, with an averageof 5.5 cm s-1. Salinity, pH, turbidity, chemical demand (COD) and biological (BOD5) oxygen, nutrients and otherhydro-meteorological variables, showed permissible ranges for culturing native fish. Based on the above, the sitemeets the basic environmental requirements for marine fish farming in floating cages. Plus, in the coastal landarea there is an aquaculture facility and suitable conditions for breeding, spawning and larval marine fish farmingin a controlled environment.