Two cyclones are advancing over Brazil and, with 'Chances of frost', are causing heavy rains and drastically lowering temperatures over the weekend.

Two cyclones are advancing over Brazil and, with ‘Chances of frost’, are causing heavy rains and drastically lowering temperatures over the weekend.

Written by Felipe Alves da Silva

Published on 17/04/2026 at 07:42

Updated on 02/05/2026 at 15:32

Be the first to react!

Cold front gains strength and brings climatic instability to various regions, with a significant increase in rainfall, temperature drop, and alert for typical winter phenomena

The simultaneous action of two cyclones near Brazil promises to transform the climatic scenario this weekend, bringing a combination of intense rains, a significant drop in temperatures, and an increased risk of frosts, especially in the higher regions of the South of the country. This atmospheric movement, in addition to reinforcing the arrival of a cold front, also amplifies instability in various areas, directly impacting millions of Brazilians.

The information was released by the portal “Meteored”, which monitors meteorological trends and details how the interaction between cyclones and cold air systems can rapidly alter weather conditions in several regions of Brazil, according to a recent analysis published by the specialized channel.

Rains advance strongly over São Paulo and Southeast, driven by cyclones

As the cyclones advance and influence the formation of the cold front, the effects begin to intensify already on Friday (17), especially in the eastern part of the state of São Paulo. However, it is on Saturday (18) that the scenario gains even more strength, with a considerable increase in precipitation.

ARTICLE CONTINUES BELOW

Temperatures plummet and increase the ‘chances of frosts’ in the South Region

In addition to the rains, another factor that draws attention is the sharp drop in temperatures, driven by the presence of a cold air mass associated with one of the cyclones located in the Atlantic Ocean, even though it is far from the Brazilian coast.

As a result, the weekend will be marked by significant cooling, especially in the South Region. Forecasts indicate minimum temperatures that may vary between 2°C and 4°C in the Santa Catarina mountains, a scenario that considerably increases the chances of frost.

According to specialists, frosts may reach regions such as Ausentes and Palmas, areas known for recording lower temperatures during episodes of intense cold. Meanwhile, in the eastern part of the South Region, minimum temperatures are expected to fluctuate between 13°C and 16°C.

In higher altitude regions, such as the Mantiqueira Mountains, thermometers may register around 6°C, highlighting the extent of the cold in different parts of the country.

Thermal variation persists and maintains contrast between cold and heat in some regions

Despite the entry of cold air and the drop in temperature across much of the territory, Brazil will continue to present significant thermal contrasts. In the state of Paraná, for example, there is still a forecast of elevated temperatures during the afternoon, especially between Sunday (19) and Tuesday (21).

Thus, the country remains under a typical transitional pattern, where cold and warm air masses compete for space, causing significant climatic variations over the days.

With information from: Ndmais

Two cyclones are advancing over Brazil and, with ‘Chances of frost’, are causing heavy rains and drastically lowering temperatures over the weekend.

Cold front gains strength and brings climatic instability to various regions, with a significant increase in rainfall, temperature drop, and alert for typical winter phenomena

Rains advance strongly over São Paulo and Southeast, driven by cyclones

Cyclogenesis causes a sudden change in weather in the South of Brazil with the formation of an extratropical cyclone between Argentina and Uruguay, bringing rain, thunderstorms, strong winds, and widespread instability throughout this Thursday (16).

Temperatures plummet and increase the ‘chances of frosts’ in the South Region

Thermal variation persists and maintains contrast between cold and heat in some regions

An extratropical cyclone with unusual behavior is moving from Argentina to the Atlantic, causing an intense ‘thermal seesaw’ in the South of Brazil, with storms, temperatures above 30°C, cold below 10°C, and a difference of up to 15°C in the same day.

While an average building in London or New York takes three years to be completed, in China a 26-story tower went up in five days with about 100 workers, and the global modular construction market already moves US$ 95 billion per year.

Australia installs giant concrete structures on the seabed 800 meters from the shore to create an ocean intake for desalination that will draw in saltwater and produce 30 million liters of drinking water per day.

While a traditional school may take several days just to raise walls, in Malawi a 3D-printed school had its structure ready in 18 hours, welcomed children in June, and showed a new solution to the lack of classrooms.

Goodbye traditional washing machine: Panasonic surprises housewives with the NA-G5 featuring four drums, a 13 kg washer and dryer, a 12 kg dryer, independent mini washers, a heat pump, and a 4-in-1 system awarded at the German Design Award.

Material once seen as a poor man’s choice returns as a climate bet, with red clay replacing part of the gray concrete in modern buildings, hospitals, houses, and a cultural center that transforms tradition into a solution against urban heat.

American company deploys humanoid robots to work live for 8 hours and surprises by showing machines handling packages at an almost human pace while accelerating production on a global industrial scale

5 used hatchbacks for up to R$ 50,000 with reliable mechanics, economical and easy to maintain, including options with automatic transmission, 1.6 engine, and up to 300 liters of trunk space

Brazilian port will receive a billion-dollar investment of R$ 1.1 billion to extend the quay by 300 meters, operate up to 3 New Panamax ships simultaneously, and generate over 5,000 jobs in the Mercosur logistics chain.

Government backtracks and maintains the end of the radars after suspending a R$ 116 million contract that would install electronic monitoring at 230 points on 36 highways after 14 years without speed control equipment in SC.

Jeep registers an unprecedented car in Brazil with a range of over 800 km, a 1.6 turbo hybrid engine with 213 hp, Stellantis’ new global platform, larger than the Compass, and acceleration from 0 to 96 km/h in 8.3 seconds.

Two cyclones are advancing over Brazil and, with ‘Chances of frost’, are causing heavy rains and drastically lowering temperatures over the weekend.

Cold front gains strength and brings climatic instability to various regions, with a significant increase in rainfall, temperature drop, and alert for typical winter phenomena

Rains advance strongly over São Paulo and Southeast, driven by cyclones

Cyclogenesis causes a sudden change in weather in the South of Brazil with the formation of an extratropical cyclone between Argentina and Uruguay, bringing rain, thunderstorms, strong winds, and widespread instability throughout this Thursday (16).

Temperatures plummet and increase the ‘chances of frosts’ in the South Region

Thermal variation persists and maintains contrast between cold and heat in some regions

An extratropical cyclone with unusual behavior is moving from Argentina to the Atlantic, causing an intense ‘thermal seesaw’ in the South of Brazil, with storms, temperatures above 30°C, cold below 10°C, and a difference of up to 15°C in the same day.

While an average building in London or New York takes three years to be completed, in China a 26-story tower went up in five days with about 100 workers, and the global modular construction market already moves US$ 95 billion per year.

Australia installs giant concrete structures on the seabed 800 meters from the shore to create an ocean intake for desalination that will draw in saltwater and produce 30 million liters of drinking water per day.

While a traditional school may take several days just to raise walls, in Malawi a 3D-printed school had its structure ready in 18 hours, welcomed children in June, and showed a new solution to the lack of classrooms.

Goodbye traditional washing machine: Panasonic surprises housewives with the NA-G5 featuring four drums, a 13 kg washer and dryer, a 12 kg dryer, independent mini washers, a heat pump, and a 4-in-1 system awarded at the German Design Award.

Material once seen as a poor man’s choice returns as a climate bet, with red clay replacing part of the gray concrete in modern buildings, hospitals, houses, and a cultural center that transforms tradition into a solution against urban heat.

American company deploys humanoid robots to work live for 8 hours and surprises by showing machines handling packages at an almost human pace while accelerating production on a global industrial scale

Government backtracks and maintains the end of the radars after suspending a R$ 116 million contract that would install electronic monitoring at 230 points on 36 highways after 14 years without speed control equipment in SC.

Amazon may revolutionize the Kindle line with a replaceable battery and a structure that’s easier to repair, a strategic decision that aligns with new global rules on the right to repair and could completely change the future of e-readers in 2026.

The Milky Way may appear as a luminous band over Brazil on moonless nights, the galaxy’s core becomes more visible between June and August, transforming beaches, mountains, and rural areas into natural observation points of the cosmos.

Study by Brazilian scientists identifies microplastics and persistent pollutants in deep areas of the national ocean, increasing global concern about invisible waste that persists for decades in the marine environment and threatens strategic species of Atlantic biodiversity.

Deforestation in the Amazon could reduce the rainfall that sustains the forest and push up to 77% of the biome to the risk of degradation, according to a study by Nature that links drought, global warming, and tree loss in a broad climate chain reaction.

5 used hatchbacks for up to R$ 50,000 with reliable mechanics, economical and easy to maintain, including options with automatic transmission, 1.6 engine, and up to 300 liters of trunk space

Brazilian port will receive a billion-dollar investment of R$ 1.1 billion to extend the quay by 300 meters, operate up to 3 New Panamax ships simultaneously, and generate over 5,000 jobs in the Mercosur logistics chain.

Government backtracks and maintains the end of the radars after suspending a R$ 116 million contract that would install electronic monitoring at 230 points on 36 highways after 14 years without speed control equipment in SC.

Jeep registers an unprecedented car in Brazil with a range of over 800 km, a 1.6 turbo hybrid engine with 213 hp, Stellantis’ new global platform, larger than the Compass, and acceleration from 0 to 96 km/h in 8.3 seconds.