Potential evapotranspiration (PET), and reference evapotranspiration (ETo) are estimated at an approximately 1-kilometer spatial grid and a daily time-scale from January 1, 2023 to December 31, 2023 for Florida, Alabama, Georgia, South Carolina, and parts of Mississippi, North Carolina, and Tennessee. PET and ETo were computed, using the Priestley-Taylor equation and the FAO Penman-Monteith method, respectively, on the basis of solar radiation, meteorological data (min/max temperature, min/max relative humidity, and mean wind speed at 2-meter height), and shortwave blue-sky albedo data. Solar radiation was computed from Geostationary Operational Environmental Satellite (GOES) sensor data, blue-sky albedo was computed from the Moderate Resolution Imaging Spectrometer (MODIS) MCD43A1 BRDF/Albedo data product, and meteorological data were simulated using a high-resolution Weather Research and Forecasting (WRF) model. Additional files included in this data release are related to validation of the WRF model output and include 2 Portable Document Format (PDF) files containing time-series plots of PET and ETo computed from modelled and measured values, 9 comma-separated values (CSV) text files containing the modelled and measured values associated with one of the weather stations included in the PDF plots, and 2 CSV text files containing a list of the weather stations for which plots were generated and summary statistics of the validation results. Open-source tools for managing the NetCDF files in this data release can be found at https://code.usgs.gov/jbellino/florida-goes-et.