Saturday maintains the instability pattern observed on Friday in the southeast, where the combination of heat and humidity brings scattered rain throughout the day in São Paulo, Minas and Rio. The proximity of marine traffic enhances the formation of clouds, especially in the east of the region, and increases the risk of rapid rains with strong winds. Maximum temperatures are near 30°C in most parts of the Southeast.
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Temperatures are still high, and with moisture coming from the ocean, there are conditions for cloud formation that can cause irregular rain showers, says meteorologist Andrea Ramos.
In the south, the scenario remains unstable. High temperatures, associated with moisture support in the eastern region, increase the risk of isolated storms with hail in Rio Grande do Sul, Santa Catarina and southeastern Paraná. The region has already recorded episodes of cold on Friday, and this behavior will be repeated on Saturday, even before the most significant change expected on Sunday night.
“Weather conditions remain favorable for the formation of dense clouds, with the possibility of hail,” says Andrea.
In the north, rain remains heavy and widespread, with moderate to high amounts maintaining a trend across most parts of the Amazon region. The ACAS pattern favors continued rainfall, with greater emphasis on Amazonas, Pará and Amapá.
In the northeast, the contrast is still clear. Inland areas, especially southern Ceará, western Rio Grande do Norte and the hinterland of Pernambuco and far northern Bahia, are once again experiencing intense heat and low humidity, while the coast experiences temporary instability and slightly milder temperatures.
In the Midwest, instability is more widespread in northern Mato Grosso and Goiás, while Mato Grosso do Sul combines wet weather with erratic rain. Temperatures remain high in most areas of the region.