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Due to the extension of the country, its geography and diverse latitudes and altitudes, Argentina shows differentiated weather characteristics along its many regions.

As in the rest of the South American countries below the equatorial line, the winter in Argentina is from July to October, while the summer season extends from December to March. The winter is cold, rainy and with shorter days; visits to the north and northeastern zones are recommended, for the rains and the heat lessen during this season. The summer is hot and humid and the days are longer; visits to the Patagonia and the southern Andes are recommended during this period.

The ocean works as a thermal regulator in most of the country's coastal cities, so there is not much difference between the maximum and minimum temperatures. This is the case of Buenos Aires.

Many people believe spring and fall are the best seasons to visit Argentina, for the weather remains relatively warm during these months.

Temperatures and Precipitations
The average temperatures and precipitations (minimum / maximum) for the year in the main cities are:

Buenos Aires 5° C / 29° C 51 mm / 123 mm
Córdoba 9° C / 23° C 6 mm / 125 mm
Corrientes 15° C / 27° C 40 mm / 701 mm
Rosario 11° C / 24° C 30 mm / 111 mm
San Juan 8° C / 25° C 1 mm / 17 mm
San Miguel de Tucumán 12° C / 25° C 9 mm / 190 mm
Santiago del Estero 12° C / 28° C 5 mm / 105 mm
Ushuaia - 6° C / 9° C 23 mm / 54 mm

WEATHER BY REGIONS
Argentina possesses exceptional natural beauties, for it embraces a very diverse territory of mountains, plains and highlands containing all possible weathers. It has various climatic regions with particular sceneries.

1) NOROESTE (NORTHWEST)
It stands out for its warm weather; with mountains of various colours, the Puna highlands, valleys and ravines, and the characteristic towns and cities of great historical value.

2) GRAN CHACO (GREAT CHACO)
Mostly forest areas with sub-tropical weather, marshes and lagoons.

3) MESOPOTAMIA
It has a sub-tropical weather in the northern part and a milder climate in the southern one. It has a very diverse flora and fauna, and its territory contains hillocks, lagoons and marshes, and is crossed by large rivers.

4) CUYO
It has mountainous characteristics (the Aconcagua Mountain rises in the area), with mild and arid weather. However, man's intervention has turned it into an ideal place for wine growing and production by means of irrigation.

5) SIERRAS DEL CENTRO (CENTRAL SIERRAS)
The central sierras of Córdoba and San Luis possess a very benign mild and dry weather, with numerous rivers and manmade water surfaces.

6) PAMPA HUMEDA (MOIST PLAIN)
With temperate weather, it possesses the most productive lands in the country (and one of the best in the world) for agricultural and livestock activities. Its plain is only interrupted by the Tandil and Ventana sierras. It has long and crowded beaches facing the Atlantic Ocean towards the east.

7) PATAGONIA
It is the most extensive region, with a much colder weather accentuated in the southern part. The west is mostly constituted by a mountainous landscape scored by spectacular woods, lakes and glaciers; it has an arid plain in the centre, and long beaches with varied marine fauna to observe to the east. The south end of this region is the southernmost point in the world except for Antarctica, of course.