Monteros is the head town of the Monteros Department in Tucumán Province, Argentina. It lies 58 km (36 mi) south-west of the provincial capital, San Miguel de Tucumán, at an altitude of 532 m (1,745 ft). The town is surrounded by four rivers.
At the 2001 census, Monteros had 23,771 inhabitants. Its climate is warm, with average temperatures of about 35 °C (95 °F) in summer and 10 °C (50 °F) in winter; recorded extremes range from a high of 45 °C (113 °F) to a low of −3 °C (27 °F).