The spring hydrographic conditions of Magellan flords region were described (i.e., Seno Almirantazgo, Bahía Inútil, Seno Otway and Golfo Xaultegua). The large differences in the water body observed among the fjords were related to the distance between the fjords to the shore and the influence of the coastal waters. Furthemore a seasonal variations analysis with spring and fall data has been carried out. The result shows that the most important parameter in the seasonal fluctuations of the water body was temperature.