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Weather forecast reveals climatic contrast in Brazil with advancement of intense rains in the North and gradual change in the South over the next days
The month of April begins with a climatic scenario marked by contrasts in Brazil. While the South of the country still faces sunny days and high temperatures, regions such as Amazonas, Pará, Maranhão, and Tocantins are already recording significant amounts of rain, indicating a gradual change in the national climatic pattern.
The information was released by “Tempo&Dinheiro”, based on recent meteorological analyses, which point to significant precipitation accumulations in the coming days, especially in the North region and parts of the Northeast.
In the next five days, the rainfall volumes are expected to vary between 45 mm and 100 mm, with most areas recording accumulations between 45 mm and 75 mm, especially in Amazonas, Pará, Maranhão, and Tocantins. This scenario indicates a period of high humidity and frequent formation of heavy clouds.
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Intense heat at the beginning of April already has a defined scenario in Rio Grande do Sul, and forecasts indicate temperatures above 30°C, little rain, and a risk of drought in several regions.
Additionally, states such as Maranhão, Piauí, Ceará, Paraíba, and Pernambuco are also on the radar for more intense precipitation. In fact, there are indications that some regions — especially in southern Piauí, Maranhão, and areas near northern Bahia — may record even higher volumes than predicted by meteorological models.
Rains gain strength in the North and Northeast while Southeast and Midwest begin to register changes in the pattern
Continuing the analysis, it is observed that the rainfall pattern is not restricted only to the North. On the contrary, there is a gradual expansion of precipitation to other regions of the country.
In the Southeast, for example, there are already signs of improvement in rainfall volume, especially in the central-south of Minas Gerais, São Paulo, and Paraná. Still, some areas continue to experience water deficits, such as Mato Grosso do Sul and parts of central-south Mato Grosso.
Meanwhile, isolated showers are still recorded in northern Mato Grosso, including the Sinop region, as well as areas of Espírito Santo and northern Minas Gerais, although with less intensity.
On the São Paulo coast and in the west of Rio de Janeiro, there is a possibility of heavy rain in specific points. In the South region, including Paraná, Santa Catarina, and Rio Grande do Sul, the volume remains low at the beginning of April, although signs of change are already starting to appear.
When we expand the analysis to a 15-day period, the scenario becomes even more expressive. Accumulations may exceed 100 mm, 150 mm, 180 mm, and even 250 mm in various areas of the North and Northeast, consolidating a potentially very rainy month in these regions.
Temperature drop and frost risk begin to gain strength in the South starting next week
As the rain gradually advances across the country, another factor begins to draw attention: the drop in temperature. In the coming days, there will still be significant heat, especially until the end of the weekend.
Regions such as Mato Grosso do Sul, southern Mato Grosso, Goiás, western Minas Gerais, interior of São Paulo, Paraná, and even parts of the South may record temperatures between 34°C and 38°C until Sunday.
However, this scenario changes rapidly. Starting the following week — especially between April 10 and 14 — a cold air mass is expected to advance across the country, causing a sharp drop in temperatures.
In the South, the impact will be even more evident. Areas such as the Campos de Palmas (SC), higher altitude regions, and the top of the mountains in Rio Grande do Sul may record conditions favorable for frost occurrence.
This movement marks, therefore, the first significant incursion of cold air of the year, signaling the definitive transition to a more typical autumn pattern.
Additionally, the gradual improvement of rains in the South also begins to consolidate after the Easter period, indicating an important change in the climatic behavior of the region.
April is expected to be marked by above-average rainfall in the Northeast and below-normal temperatures in much of Brazil
When analyzing the broader climatic behavior, meteorological models indicate that April may be a very favorable month for rainfall in the Northeast.
There is a forecast of above-average volumes in practically the entire region, with positive anomalies advancing even towards the center of the country.
On the other hand, Rio Grande do Sul is still expected to present precipitation levels slightly below normal, maintaining the alert for drought periods in some areas.
Regarding temperatures, the trend for the next 10 days points to values below average in much of Brazil, especially after the arrival of the cold air mass.
Meanwhile, regions such as Roraima and Amazonas continue with high humidity, which even hinders practices such as burning, due to the excess precipitation.
Thus, the month of April begins with a dynamic scenario full of contrasts: persistent heat in some areas, intense rains in others, and a significant change on the horizon with the arrival of cold.
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