The zonal pressure gradient (ZPG) along the Atlantic equator and the Equatorial Undercurrent (EUC) transport are discussed for four cruises representative of each season. A very clear sea surface slope reversal occurred in the eastern area during autumn as far west as 14¿W. An early onset of the equatorial thermocline rising was evident during spring 1983. A eastward equatorial surface jet clearly distinct from the EUC was observed at 35¿W and 29¿W. The greatest ZPG but the lowest EUR transport were observed during summer 1983. A nearly total absence of the ZPG and a large surfacing of the EUC as far as 10¿W characterized the 1984 winter.