São Sebastião Weather Forecast
Current Conditions & 10-Day Outlook
Current Weather Conditions in São Sebastião
São Sebastião
São Paulo, Brazil
Clear skyHourly São Sebastião Weather Forecast
18°
17°17°16°16°16°16°16°16°15°15°17°21°23°24°24°24°23°22°21°19°18°18°18°Very gentle wind.
Minimal chance of precipitation.
São Sebastião 10-Day Weather Outlook
Meteorologia de hoje em São Sebastião, São Paulo, Brazil
Sat, Jul 11
Sun, Jul 12
Mon, Jul 13
Tue, Jul 14
Wed, Jul 15
Thu, Jul 16
Fri, Jul 17
Sat, Jul 18
Sun, Jul 19
Sensação térmica
Feels warmer than actual temperature.
Pressão
Expect clear and stable weather.
Humidade
High humidity.
UV
Take precautions.
Rajadas
Velocidade máxima das rajadas de vento hoje.
Nebulosidade
Clear skies, no clouds expected.
Luz do dia
Balanced day and night.
Chuva
No rain, dry conditions expected.
Queda de neve
No snowfall expected.
Current Air Quality in São Sebastião
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About São Sebastião Weather
General
This page provides the current weather forecast for São Sebastião, São Paulo, Brazil, including hourly conditions, a 10-day outlook, wind speed and direction, precipitation, UV index, and air quality - giving you everything you need to plan your day in one view.
Forecast & Methodology
The forecast data on this page is sourced from the ECMWF open-source model - a reliable global model used widely across weather services worldwide. For sailors, boaters, and mariners who need greater accuracy and higher resolution, PredictWind's proprietary forecast models deliver precision down to 1km resolution, updated multiple times daily and validated against real-world observations. Sign up free to access PredictWind's advanced forecasts.
Sailing & Marine Conditions
São Sebastião weather forecasts on PredictWind are optimised for sailors and boaters who need precise, reliable wind and wave data for passage planning and day sailing. PredictWind is used by ocean racers, cruising sailors, and commercial vessel operators across Brazil and worldwide. For detailed marine conditions including wave height, swell period, and offshore wind forecasts, see the São Sebastião marine forecast.
Units
Wind speed is displayed in knots - the standard unit used by sailors, weather services, and maritime authorities. Temperature is shown in degrees Celsius. Use the toggle at the top of the page to switch between Celsius and Fahrenheit. Pressure is shown in hPa, rainfall in millimetres, and air quality is available in both US and EU AQI standards.