Characteristics of the coastal surface currents in Vietnam are often challenging to be well-described due to the lack of reliable data. Thus, a remote sensing technology – high-frequency (HF) WavE RAdar (WERA) has been implemented to monitor the surface currents along the mid-southern coast of Vietnam, which is largely influenced by the strong South China Sea Western Boundary current system (SCSWBC). The HF radar data obtained from a measurement campaign in May, 2019 were checked for outliers and noise by RMSE threshold. Thereafter, the velocity fields were reconstructed using 2DVar-EOF gap filling and interpolation method [1], [2] for further analysis. The reconstructed surface current maps showed that the main current direction in this area during summer was northeast and the flow was driven by the southwest monsoon which usually starts from May [3]. The eastern sector of the domain was noticed with remarkably strong northeast current. At the onset of summer monsoon, the jet was weaken and deviated, thus, strongly modified the dynamics of the region [4]. A current divergence was observed in the northeastern and eastern parts of the study area. Some other interesting features of surface circulation were revealed during the second week of measurements, on 9-10 of May. Those features are characteristics of the east Vietnam cyclonic eddy and the southeastward offshore current [3]–[5]. On May 9, the cyclonic eddy expanded further to the south and prevailed over the entire area within a week. Spectral analysis was performed to identify the dominant frequencies of the surface current variability. The results demonstrated the capability of HF radars in monitoring sub- and mesoscale motions of near-shore surface currents.