Drought is one of the main events associated to climate change that affects water supply and food productions at different locations and time (spatio - temporal) in the Peruvian Tropical Andes (PTA). Furthermore, studies evidenced that drought are causing an enormous damage to social, economic and environmental spheres. Hence, The World Meteorological Organization (WMO) has published a handbook of drought indicators and indices with the most representative methods used in the world to assess drought events, but each index has a different advantage since the requested variable and scope are different. In that sense, this study aims to compare the Standardized Precipitation Index (SPI) and Standardized Evapotranspiration Index (SPEI) for agricultural drought under spatio - temporal consideration in the PTA, Mantaro Valley. Firstly, SPI is based on precipitation data, effectively distinguis...