Abstract: This data set was obtained from two ROMS model simulations in the region of Brazil located at 60°W–15°W / 25°S - 15°N. One of the simulations takes into account the tide (obtained from the TPXO7 product) and the other one does not. The rest of the configuration was similar for both simulations, taking bathymetry from ETOPO2 and surface forcings from COADS climatology. Moreover, all boundaries were considered open and lateral conditions were taken from SODA, while initial conditions are derived from WOA09 and the river discharge climatology was obtained from Dai and Trenberth. In both experiments the KPP parameterization was used as vertical mixing scheme. The output files are in NetCDF format and are separated by months with a frequency of daily averages, containing 12 files for the simulation with tide and 12 for the simulation without tide, which are organized in two directories: Tide and noTide. Keywords: ROMS model, Hydro-thermodynamic, Brazilian Tropical Atlantic, SST, SSS, Potential temperature, Salinity, Marine currents, Density Reference: Capuano, T. A., Varona, H. L., Araujo, M., & Koch-Larrouy, A. 2022. High-resolution hydrodynamics and TS structure database of the Brazilian continental shelf and adjacent waters. Data in Brief, 42, 108210. DATA INFO Data volume: 136.01 GB File counts: 26 Published online: 2021-12-07 22:55:56 GMT+8 DOI: doi.org/10.1016/j.dib.2022.108210 Dataset Download: www.scidb.cn/en/detail?dataSetId=e1f188c4684048459823aaec4f168cc3