The shipment, captured on Friday, was found in a farm vehicle pulled over during a routine inspection in Rio Claro de Golfito, about 350 kilometers (210 miles) southwest of the capital, the government said in a statement.
Police said 178 one-kilogram (2.2-pound) packages were found.
Costa Rican authorities intercepted a shipment of 560 kilogram (1,232 pounds) of cocaine Tuesday on the border town of La Cruz de Guanacaste, as it was about to enter Nicaragua.
On May 18, a cache of 378 kilogram (731 pounds) was discovered in Miramar de Puntarenas, some 110 kilometers (66 miles) north of San Jose.
Police say they have seized a total of 1,116 kilos (2,455 pounds) of cocaine in the past nine days. (S008/K004)
Editor: Kunto Wibisono
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