What is the main winter airmass in Cusco, Peru

Cusco is under the macro-climatic influence of great air masses originating from the South-Eastern Jungle, the High Plateau, and even from the distant region of La Patagonia. The winds from the Southern Jungle involve large air masses filled with humidity, which are impelled by the Eastern Trade Winds.


During winter, there is a greater penetration of high-latitude cold air masses, which contributes to the predominance of low temperatures.


The Southeast and West-Central regions are influenced not only by tropical systems but also by mid-latitudes, with a dry season well defined in the winter and a rainy summer season with convective rain. The South of Brazil, due to its latitude, is affected mostly by mid-latitude systems, in which the frontal systems cause most of the rain during the year.