This study is on the climatic parameters which could stimulate the rate of dryness of water from Lake Chad. It indicates that with regard to the considered parameters: duration of sunlight, temperature and relative humidity of the air, and precipitations, none has stimulated such a daily rate of dryness of 1.25 km2 of the liquid surface of Lake Chad as reported for the last fifty years. Even though that process of dryness exists, it has not such an intensity and the causes should be searched elsewhere, priory in the uncontrolled use of water by human beings for their daily activities, due also to the rapid growth of the populations. The governments should manage new spaces and appropriate structures to prevent the ongoing degradations.