The weather for this Saturday, January 3, 2026 will be characterized by one thermal relief in the central area of the country and unstable conditions in the north. A day with variable cloudiness and winds from the south is expected in the city of Buenos Aires and the suburbs of Buenos Aires. On the contrary, several provinces in northern Argentina Keep notes strong storms and heat.
The weather in the city of Buenos Aires and the province of Buenos Aires on January 3rd
In the city of Buenos Aires and the suburbs of Buenos Aires the applies National Weather Service expected a pleasant day after the recent heatwave. The minimum temperature is 17 degrees the maximum will reach 26 degrees. Skies will remain partly cloudy throughout the day, with moderate winds from the south bringing gusts of fresh air to the metropolitan area.
Relief came in the center of the country as extreme heat and storms continue in the north
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For him Rest of Buenos Aires Provincethe conditions will be similar with a Significant decrease in thermal recordings. No significant rain is expected in the federal capital and neighboring towns, so a stable start to the weekend is assured. The UV index remains at a very high level at middayTherefore, despite the moderate temperatures in Buenos Aires, the authorities recommend sun protection.

What will the weather be like in the rest of the country?
In the north of Argentina there are provinces like Formosa, Chaco and Santiago del Estero will continue to maintain high valueswith maximum temperatures of up to 32 degrees and high humidity. The National Weather Service is warning of isolated storms that could be accompanied by electrical activity in these regions.
In the Cuyo area, Mendoza forecasts a maximum of 33 degrees with input from a front system.
Those in turn Patagonian region will experience one colder and windier weather. In Tierra del Fuego, minimum temperatures will drop significantly, while strong westerly winds are expected in Santa Cruz.
In Mesopotamia, especially in Missionsare predicted Afternoon showers and an extreme UV indexaccording to the OPAD, which described the day as “hot and humid” for the city of Posadas.
What will the weather be like in Argentina in the next few days?
He extended forecast points out that the relief in the central zone will be short-lived. For him Sunday, January 4thIt is expected that the Treasure The Partly cloudy in CABA, with a minimum of 17 and a maximum that will rise to 28 degrees. He Monday 5ththe temperature will continue to rise and reach 30 degreesThis marks the gradual return of the hot atmosphere characteristic of the summer season in Buenos Aires.
At the national level, the final break in the series of oppressive days would only be consolidated towards the end of the year Tuesday, January 6th. There is one planned for this date more general decrease in thermal markings throughout the national territory, with maximum temperatures that would not exceed 25 degrees in the center of the country. However, the SMN recommends following daily updates in case of possible formation new thunderstorm cores.