Water temperature in Red Beach

This data the coastal Red Beach sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Red Beach

Water temperature in Red Beach today is 20.9°C. Based on our historical data over a period of ten years, the warmest water in this day in Red Beach was recorded in 2020 and was 23.5°C, and the coldest was recorded in 2017 at 19.4°C. Sea water temperature in Red Beach is expected to rise to 22°C in the next 10 days. September average water temperature in Red Beach is 21.9°C, the minimum temperature is 19.3°C, and the maximum is 25°C.

The swimming season in Red Beach lasts from January to December, twelve months per year! During those months, Red Beach water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Red Beach in winter reaches 22°C, in spring 22.4°C, in summer the average temperature rises to 25.3°C, and in autumn it is 24.8°C.

Red Beach water temperature now

The sea salinity in Red Beach is 35.95‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Red Beach for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Red Beach. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Red Beach. Data in table shown for 7 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Red Beach

Red Beach weather forecast

Current temperature and weather

Data in a table show Red Beach temperature today (7 September 2025). For more information and forecast for a few days, go to the weather forecast Red Beach.

0-3 h	3-6 h	6-9 h	9-12 h
19.4°C	19.4°C	19.3°C	20.3°C

12-15 h	15-18 h	18-21 h	21-24 h
21.8°C	21°C	20.1°C	19.6°C

Red Beach water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Red Beach. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Red Beach on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Red Beach

The nearest beaches and cities from Red Beach with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Sepetiba	22°C	22°C		1.29 m
Mangaratiba	22.9°C	22°C		0.91 m
Arraial do Cabo	21.6°C	20°C		1.55 m
Praia do Forno	21.6°C	20°C		1.55 m
Praia do Farol	21.5°C	20°C		2.13 m
Cabo Frio	21.3°C	20°C		1.51 m
Ilha Grande	21.9°C	19°C		0.92 m
Angra dos Reis	22°C	19°C		0.91 m
Armacao de Buzios	21.6°C	20°C		1.56 m
Rio das Ostras	21.4°C	20°C		1.15 m

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Our report for Red Beach is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.