The season in South America has been known to start as early as the beginning of June and run until the end of October. The core season however is mid June through July, August & September into early October.
A big thing people in Argentina is skiing.
Because they are in the southern hemisphere, and seasons are all in reverse, when its summer up north, its winter down south. Given as to how its almost July here in the States, Argentina is likely bam smack in the middle of ski season.
autumn
The best with a lot of tracks: LAS LEÑAS http://www.laslenas.com/Default.aspx?template=home&Id=1556 CERRO CATEDRAL (PATAGONIA) Also: http://www.catedralaltapatagonia.com/
The skiing season in the Alps generally lasts from November until May, weather permitting; all other times are off-season. However, not all resorts are open after the season ends.
Winter
Winter, as Argentina is on the southern hemisphere.
At this moment (Jan 21, 2011), it is summer in Argentina.
what season is it in Buenos Aires, Argentina?
It is spring
They are in the fall season.
It is summer over there