Climate:
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Argentina is a large country with varied climatic regions. In the tropical north, temperatures & humidity are high during the summer months (Nov-Mar) with rain throughout the year. Buenos Aires, other central regions & the Pampas to the east have warm but rather wet summers & mild winters. The climate is sunnier & drier further west & to the south. This area includes the northern Andes which are very barren as little rain or snow falls even on higher slopes, if it does rain in tends to be during the summer months which are hot & very sunny. Southern Argentina or Patagonia is a mainly dry area with cooler temperatures, especially in the far south which has brisk summers & long cold winters with a good deal of snow & frost, although temperatures are not usually intolerably low.
Four kinds of climate:
1) Warm: found in the north-eastern angle of Argentina. Due to the decrease of the oceanic influence towards the west and to the modifications of the mountainous relief, there are three varieties of this kind of climate: sub-tropical without dry season, sub-tropical with dry season and sub-tropical of the sierras.
2) Mild: The amount and distribution of rainfalls determine two varieties of mild climate: to east, the "Pampeano" (of Pampa) or humid and to west, there is a transition band towards arid climate. The average temperature is 15º C.
3) Cold: There are two kinds: the humid or oceanic cold, with an average temperature of around 7º C, and the nival cold prevailing in Antarctica.
4) Arid: According to the altitude and latitude, this climate shows four varieties: "high-mountain" arid, with a temperature depending on altitude; "sierras-and-fields"" arid with an average temperature of about 18º C; the "steppe" arid, with an average temperature of around 15º C and presenting frequent frosts, which occur even in summer; and cold arid, with an average temperature of about 10º C, a fairly wide thermal range and frosts occurring the whole year.
Clothing: Light clothes for central Argentina during summer & northern & western areas, although warmer wear is needed for trips up into the Andes. Warmer wear for central areas during winter months & summer visits to the south. Thermals for winter months in the south.