According to meteorologist Marina Fernández's report for Meteored, the low-pressure system will leave Saturday with April-like characteristics, although a radical change is expected for Sunday. According to what Argentine News Agency learned, the National Meteorological Service (SMN) issued a yellow alert for persistent winds for the afternoon of this Saturday. Sunday, January 11, will see the sun return and temperatures will climb to 32 °C. According to models analyzed by Meteored Argentina, the start of next week will be hot, and the first heat wave of 2026 could be recorded: Monday, January 12: It will be the hottest afternoon of the week, with highs of up to 35 °C if the northwestern wind persists. Heat Wave Criteria: It will be monitored whether for three consecutive days the thresholds of 22 °C minimum and 32.3 °C maximum established for the City of Buenos Aires are exceeded. Southeast gusts, rotating to the south, could reach peaks of 80 km/h over the Río de la Plata and exceed 50 km/h in urban areas. Autumn Saturday: rain and river rise. The impact of the cyclone will be uneven within the AMBA, with a heterogeneous distribution of precipitation: Rains and accumulations: The southeastern zones of Greater Buenos Aires could receive between 15 and 40 mm, with punctual peaks of 50 mm, while towards the west and north the values will drop to a range of 2 to 10 mm. Temperatures: The abundant cloud cover will prevent the thermal rise, with maximums that will barely oscillate between 20 and 23 °C, configuring a purely 'autumnal' environment. Alert for river rise: Fernández warns that the persistent wind will cause a rise in the Río de la Plata, with a peak estimated at 2.70 meters near midnight on Saturday. It is recommended to avoid nautical activities and areas near the coast. Sunday of sun and probable 'heat wave'. As the center of low pressure moves towards the Atlantic Ocean, conditions will improve quickly. Buenos Aires, January 10, 2026 -- The Buenos Aires Metropolitan Area (AMBA) is going through a start to the weekend marked by a cyclogenesis that temporarily distances the summer conditions.
