In this manner, the raised temperatures contrast with the extreme irregularity in the space distribution of rains. In the littoral band (18% of the area), the climate is classified as humid. Rains, normally, if concentrate in the months of March and August. In the great Aracaju, the annual average precipitation is of 1.333mm and the annual average temperature is of 25,2%C. The water is a good that suffers with the alterations that occur in the nature.
It is always in movement and therefore the same water that today we find in clouds, tomorrow we will find in the rivers. To this movement we call hidrolgico cycle, that involves other phenomena: the evaporation of waters of the sea, lagoons, dams and other sources, that if they transform into clouds; the precipitation (rain), that it returns the water of clouds to the ground; the draining of waters of rains, phenomenon that leads waters for the rivers, canals, dams, lagoons and too much courses d? water; the infiltration, that if it relates to the part of the water absorbed for the ground, subsoil and that it feeds the sources, as much the superficial ones (rivers, lakes, lagoons etc.) as the underground (freticos and deep sheets). River Sergipe (N.S of Pains) Sub-Basin of the River Cotinguiba Composing the picture of the hydrography of the state, the sub-basin of the river Cotinguiba is one of the main formadoras of the basin of the river Sergipe. With average width of 8m, I extend myself for about 232,5 Km2, located between 100 44? 56' ' 100 51? 5' ' of south latitude and 370 04? 56' ' 370 21? 52' ' of longitude occidental person. The river Cotinguiba has sus rising main in the White sand city (Long Mountain range), with altitude around 400m and its mouth of a river occurs in the city of Ours Lady of the Aid bob the form of estuary.