Thursday, September 17, 2009

Climate

Equatorial, tropical, semiarid, highland tropical and subtropical are the five climatic regions within Brazil. Along the equator the temperature has a high average of above 25 degrees centigrade however the temperature in the temperate zones do not reach the summer extremes of 40 degrees centigrade.
Sao Paulo, Belo Horizonte and Brasilia have moderate temperatures ranging between 15 degrees centigrade and 30 degrees centigrade. Rio de Janeiro, Recife and Salvador have warm climates even though they are on the coast at an altitude of about 1,000 metres above sea level, the average temperatures in these areas range from 23 degrees centigrade to 27 degrees centigrade, however, they have constant trade winds.
Most of Brazil sees moderate rainfall of between 1,000 and 1,500 millimetres per year. The majority of this rain falls in the summer months of December to April to the south of the equator.
Despite having an average rainfall of 2,000 to 3,000 millimetres per year, the Amazon region has a three to five month dry season, the timing of this dry season varies depending on location north or south of the equator.
The driest and hottest part of the country is in the northeast. The rainfall in this part of the country is scarce and there are cycles of severe droughts averaging seven years.

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