Water temperature in Maresias

This data the coastal Maresias 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 Maresias

Water temperature in Maresias today is 21°C. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Maresias was recorded in 2009 and was 22.7°C, and the coldest was recorded in 2013 at 19.8°C. Sea water temperature in Maresias is expected to rise to 21.6°C in the next 10 days. September average water temperature in Maresias is 21.5°C, the minimum temperature is 19.6°C, and the maximum is 24.8°C.

The swimming season in Maresias lasts from January to December, twelve months per year! During those months, Maresias water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Maresias in winter reaches 21.5°C, in spring 22.4°C, in summer the average temperature rises to 26.4°C, and in autumn it is 25.6°C.

Maresias water temperature now

The sea salinity in Maresias is 35.09‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Maresias 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 Maresias. 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 Maresias. 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 Maresias

Maresias weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
18.3°C	18.2°C	18.3°C	18.6°C

12-15 h	15-18 h	18-21 h	21-24 h
19°C	19°C	19°C	18.9°C

Maresias water temperature by month

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

The nearest beaches and cities from Maresias 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
Juquei	21.2°C	19°C		1.63 m
Itamambuca Beach	22.4°C	20°C		1.31 m
Paraty	22.7°C	20°C		0.85 m
Angra dos Reis	22°C	19°C		0.91 m
Ilha Grande	21.9°C	19°C		0.92 m
Lopes Mendes	21.8°C	20°C		1.39 m
Vila do Abraao	22.1°C	22°C		1.06 m
Mangaratiba	22.9°C	22°C		0.91 m
Sepetiba	22°C	22°C		1.29 m
Ilha Comprida	19.6°C	16°C		1.64 m

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Our report for Maresias 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.