The present study investigates residual currents in the Persian Gulf using field data measurement of Mt. Mitchell 1992. For this order temperature, salinity, density and direct velocity of current meter were obtained in southern Persian Gulf. Velocity spectrum time scale and tidal currents were obtained too. The residual currents during March-May indicate a surface flow into and a deep flow out of the Gulf through the Strait of Hormuz. Establishment of the Gulf-wide circulation coincides with establishment of thermal stratification and thermocline and strengthening of the baroclinic exchange circulation through the Persian Gulf. The velocity of the surface residual is about 10 cm/s and the tidal current is 50 cm/s.