In general, northern of Argentina, is a tropical zone, so the weather is usually warm. But when there countless regions with special characteristics, this suffers many variations.
There is a huge weather range from the cold desert of the Andes and the puna, until the subtropical heat of the jungle.
The orientation of the mountainous cords plays an important role in the distribution of rainfall.
There are 4 regions with diferent climate:
East region or Chaco Salteño
Is the area known as “El Chaco salteño.” It has a semi-arid climate with dry season (winter), with an average annual rainfall of 500 mm. and average temperatures in the range of 20 ° C, having recorded temperatures of up to 47 ° C in summer and -5 ° C in winter, marked by extreme temperature variations
West Region or Puna
Is the area bounded by the Altiplano or Puna. It is characterized by sudden temperature fluctuations and low rainfall, which mostly did not exceed 200 mm per year, and average annual temperatures in the range of 10 ° C, which correspond to the arid Andean.
North and South or the Valleys
The area of valleys, canyons and hills. It has a more benign climate, which makes them concentrate on the main agricultural activities and the bulk of the population.
Here the average annual rainfall reaches the 1000 mm.
Overall, the average summer temperatures exceeding 20 C and in winter, the averages are lower than 14 ° C.
These are the characteristics of the weather in Salta City, according to the season:
Summer: Hot and sunny at midday and afternoon, with pleasant mornings and evenings. The daylight lasts until close to 21 hours. In this seasson dominated by rains, which usually begin at dusk.
Fall: Pleasant during the day, with fresh cold nights. Begin to scarce the rainfalls.
Winter: Weather pleasant in the early afternoon. It begins to put fresh throughout the day and cold at night. In this seasson does not rain, so the hills take a brown and the atmosphere is very dry.
Spring: Weather pleasant during the day; fresh cold nights.