The mean annual temperature barely oscillates between 24 and 25° C (75 and 77° F) along littoral and sub-littoral spaces and between 25 and 26° C (77 and 79° F) in inland plains, a common characteristic of other plain territories of the country. Rainfall figures are among the lowest of Cuban plain regions, with values of annual average rainfall ranging from 800 to 1000 mm (31 to 39 in), towards the center of Cauto plain and that formed by rivers Tacajó and Nipe, and rising towards more elevated zones reaching values varying from 1000 to 1200 mm (39 to 47 in). For almost all of the extension of the Cauto river basin, average rainfall during the dry period (November-April) is very low, less than 200 mm, actually one of the lowest in Cuba.