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Heavy Rainstorm Reaches Baixada Santista with 50 mm of Rain

Heavy Rains and Strong Winds Threaten São Paulo Coast

Daniele Morais
October 9, 2026 · 2 min read
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Heavy Rainstorm Reaches Baixada Santista with 50 mm of Rain
Photo: "Mars Science Laboratory construction facility" by Jiuguang Wang is licensed under CC BY-SA 3.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/3.

On Wednesday night, the National Institute of Meteorology (Inmet) issued an intense rainfall alert for Baixada Santista and the rest of São Paulo state. The forecast indicates that the storm will bring 20 to 30 mm of rain per hour, totaling approximately 50 mm during the period, accompanied by winds of 40 to 60 km/h.

Impacts on Baixada Santista

The estimated 50 mm of rain could cause minor flooding, fallen trees, and power outages. In some areas, there is a possibility of hail.

Inmet's Guidelines for the Population

  • Avoid seeking shelter under trees and parking vehicles near transmission towers and billboards during wind gusts.
  • Unplug electrical appliances whenever possible during the storm.
  • Pay attention to vulnerable areas, avoiding flooded locations, slopes, and regions with a history of landslides.

Climatempo's Forecast for Santos

According to Climatempo, Santos will experience alternating sun and clouds this Wednesday, with quick rain showers distributed between the daytime and nighttime periods. The minimum temperature will be 19°C and the maximum 23°C, with a perceived temperature around 23°C.

Relative humidity levels will remain high, ranging between 85% and 99%. Winds blowing continuously from the southwest quadrant will have an average speed of five kilometers per hour.

Impacts for Outdoor Activities

The transient instability and possibility of precipitation at any moment require planning for those engaging in outdoor activities in the municipality. High humidity combined with quick showers can affect grip on public roads, demanding caution during outdoor commutes and the use of an umbrella.

How to Protect Yourself and Who to Call in an Emergency

For more information and to report incidents resulting from the rain, contact the Civil Defense (phone 199) and the Fire Department (phone 193).

With information from A Tribuna, Terra.

Source: A Tribuna, Terra

#weather#santos#baixadasantista#rain#wind#hail
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