The weather forecast for San Lorenzo this Monday, September 21, indicates that the maximum temperature will be 18°C and the minimum will be 11°C.
Additionally, according to the National Meteorological Service (SMN), winds of 18 km/h are expected, and average humidity will be 81%.
Weather forecast for San Lorenzo on the morning of September 21, 2026
The SMN report states that during the early hours of this Monday, September 21, no precipitation is expected, humidity will be 81%, and light winds of 18 km/h from the southwest are anticipated.
Meanwhile, by mid-morning, conditions will remain dry, humidity will be 45%, and there will be moderate winds of 29 km/h from the southwest.
Weather forecast for the afternoon/evening of September 21, 2026
According to the agency's forecast for San Lorenzo, no precipitation is expected this afternoon, with moderate winds of 30 km/h from the southwest.
Meanwhile, tonight, conditions will remain dry with moderate winds of 21 km/h from the south.
What is the National Meteorological Service and how does it work
The National Meteorological Service (SMN) is the official agency responsible for collecting, analyzing, and disseminating meteorological information across the country. Its main function is to predict climate and weather conditions, issue early warnings about dangerous meteorological phenomena, and provide climate information for various activities, such as aviation, agriculture, and navigation.
The SMN operates through a network of meteorological stations distributed throughout the country, while also using satellite imagery and numerical prediction models.
What is a meteorological alert in San Lorenzo
The agency itself defines an alert as "the possible occurrence of a meteorological threat," which it issues with the aim of supporting decision-making across all sectors of the population. These are generally issued 24, 48, or 72 hours before the event. On the other hand, very short-term advisories (ACP) urge the population to take action quickly, as the phenomenon may occur just minutes after they are issued.
An alert can be issued in situations involving rain or storms, as well as extreme temperatures or phenomena that deviate from normal conditions.
What is a yellow alert
These involve possible meteorological phenomena capable of causing damage and risk of temporary disruption to daily activities, according to the SMN.
In the case of high temperatures, the yellow level indicates that they may be dangerous, particularly for at-risk groups, such as children, people over 65 years of age, and those with chronic illnesses.
What is an orange alert
This warning indicates that meteorological phenomena dangerous to society, life, property, and the environment are expected. In this case, temperatures may be very dangerous, especially for at-risk groups.
What is a red alert
The agency's website warns of "exceptional meteorological phenomena with the potential to cause emergencies or disasters."
In this type of alert, temperatures are "very dangerous and can affect all people, even healthy individuals."
Clarín Newsletter
