São Paulo And The Southeast Are On Alert For Heavy Rains. Learn How The Forecast May Impact Traffic, Weather Conditions, And How To Prepare For The Upcoming Storms That Are About To Arrive!
The Southeast region of Brazil is under alert for heavy storms this weekend. According to the National Institute of Meteorology (Inmet), the weather forecast for São Paulo and the entire Southeast is that rainfall accumulations could reach 100 millimeters, accompanied by winds of up to 100 km/h. These conditions pose a risk of flooding, landslides, and hail in several areas.
Orange Alert

Inmet has issued an orange alert, indicating a moderate to high risk of intense meteorological phenomena, valid from early Saturday (19) until Sunday morning (20). The weather forecast for São Paulo includes areas in the northern part of the state, where the rain could cause significant disruptions, as well as parts of Rio de Janeiro and the central region of Minas Gerais.
In particular, the Metropolitan Region of São Paulo, the Paraíba Valley, the south of Rio de Janeiro, and the south of Minas Gerais are under constant surveillance, with the possibility of landslides in the Mantiqueira Mountains, a risk area between São Paulo and Minas.
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According to the National Center for Monitoring and Natural Disaster Alerts (Cemaden), the situation is especially critical in areas prone to landslides and flooding. Continuous rainfall accumulation, exacerbated by unfavorable atmospheric conditions, raises the risk level for the entire population of the affected area.
Detailed Weather Forecast for São Paulo
The weather forecast for São Paulo indicates prolonged rainfall throughout this Saturday. The Emergency Management Center (CGE) of the capital has already activated a crisis cabinet to coordinate emergency actions, following the record high winds of last Friday (11) that left thousands of homes without electricity.
According to the state government, energy companies have been summoned to join the crisis cabinet and respond quickly in case of another power outage. By late Saturday afternoon, a heavy rain is expected to hit the capital, with a risk of flooding in various parts of the city. However, forecasts suggest that the day should end with lighter precipitation and falling temperatures, with a minimum of 15°C and a maximum of 20°C.
Rain Forecast for Sunday
For Sunday (20), the weather forecast for São Paulo shows a scenario of rain moving away to other Southeast states. Still, overcast conditions will persist, with lower temperatures and a feeling of cold. Thermometers should range between 14°C and 19°C, indicating that the weather will remain unstable.
However, unlike the climatic events of last week, which were marked by intense winds and storms, current atmospheric conditions suggest that the intensity of the storms will be lower. According to Climatempo specialists, there is no expectation of severe winds, as the instability systems are not as strong as those observed previously.
Risks and Precautions
The rains this weekend are expected to occur intermittently but with varying intensity. The main concerns for the population include the risk of flooding, inundations, landslides, and falling trees. Authorities recommend that the public stay alert to warnings and avoid risk areas, especially in mountainous regions like the Mantiqueira Mountains.
With the data provided by Inmet and other reliable sources, local authorities continue to monitor the situation, ready to act in case of climate emergencies. For those residing in affected areas, the recommendation is to stay informed about the weather developments and follow the guidelines from responsible agencies.
With the weather forecast for São Paulo warning of heavy rains and storms, it is essential for the population to take precautionary measures. Staying informed about weather conditions and following authorities’ instructions can prevent accidents and greater disruptions. For more updates on the weather and new information about the storms, continue following our channels.

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