The information obtained of the monitoring realized fortnightly periodicity an oceanic station, located in the southern Colombian Pacific, specifically in front Tumaco Bay, it was evaluated the temporal behavior of some physicochemical variables (salinity, temperature, dissolved oxygen), chlorophyll a and nutrients (ammonia, nitrites, nitrates, phosphates and silicates), during the period between 2007 and 2011, in order to contribute to knowledge about changes in the pattern of behavior that can be submitted to the occurrence of events or phenomena that are relevant for the region. Its geographical location consolidates as an indicator of the variability of oceanographic parameters, since meteomarine is influenced by factors associated with the Intertropical Convergence Zone -ITCZ, the wind direction and current Colombia. In this respect, a marked change in the behavior of the isotherms, isohalines and the physicochemical parameters of the water column was presented during the first quarter of each year, registering between the surface and 20 m, a delta average of 7,9 °C for temperature and 2,8 psu to salinity, due to the emergence of subsurface cold waters caused by deep currents and favored by the direction of the winds, which at the season are in the northeast due to the movement of the ITCZ; this led to an increase the concentrations of dissolved inorganic nutrients, which reached levels of 1,94 in at P-(PO4)-3/L for phosphates; 4,65 pg at N-NH4+/L for ammonium, and repeatedly aboye 10 pg at N-NO3-/L for nitrate, values higher than those usually found at the point of study, the changes in the physicochemical conditions of the area were more intense during March and April 2009; as in January and February 2011, also manifested with increased chlorophyll a concentrations with values up to 2,35 mg/m3 and a decrease in dissolved oxygen levels, at times falling below 2,5 mg 02/L.