Weather Forecast for Rosario, Santa Fe: Sunday, August 23, 2026

The weather forecast for Rosario, Santa Fe, on Sunday, August 23, 2026, predicts a mild day with a high of 15°C and a low of 3°C. The morning will start with light southeasterly winds at approximately 4 km/h and humidity at 76%. No precipitation is expected during the early hours.

As the morning progresses, the winds are expected to remain light, shifting to the southeast at around 7 km/h, with humidity dropping to 69%. The afternoon and evening will see a change to light easterly winds at 9 km/h. Throughout the day, conditions are expected to remain dry, with no rain forecast.

The article also provides information about the National Meteorological Service (SMN), Argentina's official body for meteorological data. The SMN's role includes predicting weather patterns, issuing early warnings for hazardous phenomena, and providing climate information for various sectors like aviation and agriculture. It operates using a network of ground stations, satellite data, and numerical models.

Additionally, the report explains the concept of meteorological alerts issued by the SMN. An alert is defined as the "possible occurrence of a meteorological threat" intended to assist the public in making informed decisions. These alerts are typically issued 24 to 72 hours before an event, while very short-term advisories (ACP) are for phenomena occurring within minutes of issuance.

The different alert levels are also detailed: Yellow alerts indicate potential for damage and temporary disruption; Orange alerts warn of dangerous phenomena posing risks to society and the environment; and Red alerts signify exceptional phenomena that could lead to emergencies or disasters. For temperature-related alerts, Yellow signifies potentially dangerous conditions for at-risk groups, Orange indicates very dangerous temperatures, and Red denotes extremely dangerous temperatures affecting everyone.