When to go
The climate in Argentina is very varied. Buenos Aires and the Pampas have a temperate climate; it's pretty cold in winter, hot and humid in summer. In the deserts of Cuyo it can be extremely hot and dry in summer and temperatures can reach 50 degrees celsius (122° Fahrenheit). During winter it is moderately cold and dry.
The Andes and Patagonia are cool in summer and very cold in winter, varying according to altitude. Extreme temperature shifts within a single day are common here. Take note that seasons in Argentina are reversed from those in the Northern Hemisphere.