The climate at Sairecabur is dry and cloudless, leading to the absence of glaciers and permanent snowcover at Sairecabur. Overall the Atacama Altiplano has a desert climate with precipitation below , but during the late Pleistocene and early Holocene the climate was wetter. T isotope ratios of present-day snowfall are consistent with the isotope ratios determined for precipitation that arises in the continent, rather than from the Pacific Ocean. The rainshadow effect exercised by the Andes and the stability of the South Pacific High are responsible for this dryness.