World sea water temperatures

Water temperature in Guaruja

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This data the coastal Guaruja 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 Guaruja

Water temperature in Guaruja today is 20.5°C. Based on our historical data over a period of ten years, the warmest water in this day in Guaruja was recorded in 2009 and was 22.4°C, and the coldest was recorded in 2013 at 19.4°C. Sea water temperature in Guaruja is expected to rise to 21.5°C in the next 10 days. September average water temperature in Guaruja is 21.3°C, the minimum temperature is 19.1°C, and the maximum is 24.8°C.

The swimming season in Guaruja lasts from January to December, twelve months per year! During those months, Guaruja water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Guaruja in winter reaches 21.2°C, in spring 22.4°C, in summer the average temperature rises to 26.5°C, and in autumn it is 25.5°C.

Guaruja water temperature now


7 September 2025
today temp
20.5°C
6 September 2025
yesterday temp
20.5°C


The sea salinity in Guaruja is 34.67‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Guaruja 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 Guaruja. 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 Guaruja. 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)

0-3 h3-6 h6-9 h9-12 h
6' 4"6' 2"6' 2"6' 3"
1.92 m1.87 m1.88 m1.9 m
12-15 h15-18 h18-21 h21-24 h
6' 2"6' 0"6' 0"5' 8"
1.89 m1.83 m1.84 m1.73 m

Surf report in Guaruja

Guaruja wave height and direction

Guaruja weather forecast

Guaruja wind speed and direction

Current temperature and weather

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

0-3 h3-6 h6-9 h9-12 h
18.8°C18.8°C19.1°C20.1°C
12-15 h15-18 h18-21 h21-24 h
19.8°C20.1°C19.7°C19.4°C

You may also be interested in other sections of our site for Guaruja: Sunrise and Sunset, Tides

Guaruja water temperature by month

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

MonthAvrMinMax
January26.9°C24.2°C31°Chot
Sea water temperature in Guaruja in January
February27.4°C23.5°C30.9°Chot
Sea water temperature in Guaruja in February
March26.8°C24°C29.4°Chot
Sea water temperature in Guaruja in March
April25.8°C23.8°C28.5°Chot
Sea water temperature in Guaruja in April
May24°C21.5°C26.7°Cwarm
Sea water temperature in Guaruja in May
June22.1°C18.1°C24.3°Cwarm
Sea water temperature in Guaruja in June
July20.9°C18.1°C24.5°Cwarm
Sea water temperature in Guaruja in July
August20.7°C17.8°C24.2°Cwarm
Sea water temperature in Guaruja in August
September21.3°C19.1°C24.8°Cwarm
Sea water temperature in Guaruja in September
October22.5°C20°C25°Cwarm
Sea water temperature in Guaruja in October
November23.5°C20.2°C26.7°Cwarm
Sea water temperature in Guaruja in November
December25.2°C21°C28.5°Chot
Sea water temperature in Guaruja in December

Chart monthly average water temperature in Guaruja

Water temperature in Guaruja

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Guaruja 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

WaterWeatherWave
Bertioga21.3°C19°C1.25 m
Praia Grande20.5°C19°C1.89 m
Sao Vicente20.5°C20°C1.9 m
Juquei21.2°C19°C1.63 m
Itanhaem20.4°C19°C1.82 m
Maresias21°C19°C1.56 m
Sao Sebastiao21.4°C19°C1.73 m
Peruibe20.1°C18°C1.73 m
Caraguatatuba21.5°C19°C0.94 m
Ubatuba22.2°C20°C1.31 m

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Guaruja 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.

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