Located in the San Martin Region of northern Peru, Juanjui is the capital of the Mariscal Caceres province. Situated on the Huallaga River, Juanjui had a population of 55 thousand according to the 2010 census. The city center is surrounded by 8 neighborhoods; Chambira, Juanjuicillo, La Merced, La Victoria, Puerto Amberes, San Juan, and Santa Rosa. The city experiences a tropical climate, with warm and humid weather year-round. The temperature is hot and rainy every month of the year, with the most significant rainfall occurring between October and May. The average annual temperature is 26 degrees.