This is the land surface temperature (LST) ground validation data collected at ILRI Kapiti Research Ranch Kenya. The useable data series is from October 2018 to March 2019. The data stored here are the raw readings, the values used to correct them and then the final emissivity and downwelling corrected surface temperature values. Also included in the table are the corresponding satellite surface temperatures from MODIS, SEVIRI LWIR, MLST-AS and ERA5-land. Finally, upscaled and corrected ground temperatures for the SEVIRI pixel sizes is given. Each .csv contains one full record from one mast. To get the 'Kapiti upscaled average' take a mean of the four (or three given Mast 2 short record) upscaled ground LST. Please cite the use of this date with both the dataset DOI and the accompanying paper (when available).