In Schinia's there isn't weather station. The data for the assessment of the climate conditions of the region from the bioclimatic maps, study of vegetation and the data of the meteorological station to Rafina located at a distance of 12 km from Schinia.
From the station data Rafina and omvrothermiko diagram Bagnouls - Gaussen 1957, the warm dry season lasts more than five months (April-September), the annual rainfall is about 387 cm., And the maximum rainfall occurs in winter and below autumn, spring and summer.
From the number of organic dry days ranging between 125 and 150 indicate that the character of the region bioclimate is audible from Thermo receiver vrochothermiko quotient (Q) means that the area belongs to imixero bioclimatic stage with mild winter (Q = 61,45 and m = 6,2) and with rare frost and snow.
The average rainfall across the basin is 500mm. Also the volume average rainfall in the basin is 17,8 x 106 m3, of which discharged into the plain through Makara source 6,23 x 106 m3, while the rest evaporates. It is estimated that prior to 1923 the annual habitat accepted amount of water in the range of 6-7 x 106 m3. The quantity should be added an additional amount of flood runoff that ended in the region upstream from the mountain basin. The flood them off had great importance for supplying the nutrient elements. The current influx of water in the habitat is mostly the rain that falls directly. This quantity is of the order of 0,7 x 106 m3 per year. Therefore hydrologic regime ecosystem is clearly impaired compared to the native state.