Evidence is presented for a 40- and 60-day oscillation in the longshore current and temperature fluctuations that were measured during 1976 in the Somali Current regime off Kenya by D¿ing and Schott (1978). It is suggested that this equatorial oceanic oscillations is excited by long-period local wind fluctuations which are associated with the global tropical 40- to 50-day day oscillation first detected by Madden and Julian (1971,1972).