We study the seasonal and interannual variability of the coastal currents along the eastern
shelf of the Gulf of Tehuantepec. We use sea level from coastal altimetry distributed by the
Centre de Topographie des Océans et de l'Hydrosphère (Toulouse, France). Local
validation using tide gauge and hydrographic data indicates that this coastal product
measures well the seasonal and interannual scales along this tropical coastline. Long (12
years) time series of altimetry-derived currents, 39–57 km from the coast, reveal new details …