The climate of South Brazil, which is located below the Tropic of Capricorn in a temperate zone, is influenced by the system of disturbed circulation of the South, which produces the rains, mainly in the summer. It is also influenced by the system of disturbed circulation of the West, that brings rains and storms, sometimes hail, producing winds with bursts of Шаблон:Convert.
Regarding temperatures: the winter is cool and the summer is hot. The annual medium temperatures range from Шаблон:Convert, and in places with altitudes above Шаблон:Convert, drops to approximately Шаблон:Convert. Some parts of the southern region also have an oceanic climate.
In the summer, mainly in January, in the valleys of the rivers Paranapanema, Paraná and Ibicuí-Jacuí, the medium temperature is in excess of Шаблон:Convert, and the medium temperature of the river Uruguay surpasses Шаблон:Convert. The average maximum temperature stays around Шаблон:Convert on the elevated surfaces of the plateau and, in the lowest areas, between Шаблон:Convert.
In the winter, mainly in July, the medium temperature stays relatively low, oscillating between Шаблон:Convert, except for the valleys of the rivers Paranapanema and Paraná, besides the coast of Paraná and Santa Catarina, where the averages are approximately Шаблон:Convert. The average maximum temperature is also low, around Шаблон:Convert, in the big valleys and in the coast, and Шаблон:Convert in the plateauregion. The average minimum temperature varies from Шаблон:Convert
, and the thermometer frequently registers temperatures near 0 °C or below, accompanied by frost and snow, in consequence of the invasion of polarmasses.
The annual medium pluviosity oscillates from Шаблон:Convert, except along the coast of Paraná and west of Santa Catarina, where the values are in excess of Шаблон:Convert, and in the north of Paraná and in a small coastal area of Santa Catarina, which have lower recordings down to Шаблон:Convert. The maximum pluviometric indexes occur in the winter and the minimum in the summer throughout almost the whole area.
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