Elevation-dependent warming of land surface temperatures in the Andes assessed using MODIS LST time series (2000–2017)

•Daytime and nighttime MODIS LST data over the Andean region between 7 °S and 20 °S were obtained from 2000 to 2017.•Season (winter) trends of daytime and nighttime LST were computed using Sen´s method.•Winter daytime LST trend showed a clear elevation-warming dependency.•Lake Titicaca temperature show a warming based on daytime and nighttime MODIS LST measurements.•Relation between mean monthly daytime LST and mean monthly maximum air temperature.