Water temperature in Cabo Frio

This data the coastal Cabo Frio 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 Cabo Frio

Water temperature in Cabo Frio today is 20.9°C. Based on our historical data over a period of ten years, the warmest water in this day in Cabo Frio was recorded in 2020 and was 23°C, and the coldest was recorded in 2011 at 20.2°C. Sea water temperature in Cabo Frio is expected to rise to 21.8°C in the next 10 days. September average water temperature in Cabo Frio is 21.4°C, the minimum temperature is 19.7°C, and the maximum is 23.7°C.

The swimming season in Cabo Frio lasts from January to December, twelve months per year! During those months, Cabo Frio water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Cabo Frio in winter reaches 22°C, in spring 22°C, in summer the average temperature rises to 24.4°C, and in autumn it is 24.7°C.

Cabo Frio water temperature now

The sea salinity in Cabo Frio is 36.20‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Cabo Frio 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 Cabo Frio. 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 Cabo Frio. Data in table shown for 27 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Cabo Frio

Cabo Frio weather forecast

Current temperature and weather

Data in a table show Cabo Frio temperature today (27 September 2025). For more information and forecast for a few days, go to the weather forecast Cabo Frio.

0-3 h	3-6 h	6-9 h	9-12 h
16.7°C	15.8°C	17.3°C	20.2°C

12-15 h	15-18 h	18-21 h	21-24 h
20.6°C	19.8°C	17.9°C	17.7°C

Cabo Frio water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Cabo Frio. 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 Cabo Frio 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 Cabo Frio

The nearest beaches and cities from Cabo Frio 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
Arraial do Cabo	21°C	20°C		1.56 m
Praia do Forno	21°C	20°C		1.56 m
Pontal do Atalaia	21°C	20°C		1.56 m
Armacao de Buzios	20.6°C	20°C		1.45 m
Tucuns Beach	20.6°C	20°C		1.45 m
Praia do Farol	21.1°C	20°C		2.17 m
Geriba Beach	20.4°C	20°C		1.45 m
Ferradura	20.4°C	20°C		1.45 m
Ferradurinha Beach	20.4°C	20°C		1.45 m
Joao Fernandes Beach	20.5°C	20°C		1.3 m

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Our report for Cabo Frio 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.