World sea water temperatures

Water temperature in Rio Grande (Puerto Rico)

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This data the coastal Rio Grande 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 Rio Grande

Water temperature in Rio Grande today is 29.9°C. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Rio Grande was recorded in 2023 and was 30.1°C, and the coldest was recorded in 2013 at 28.6°C. Sea water temperature in Rio Grande is expected to drop to 29.4°C in the next 10 days. September average water temperature in Rio Grande is 29.3°C, the minimum temperature is 28.3°C, and the maximum is 30.6°C.

The swimming season in Rio Grande lasts from January to December, twelve months per year! During those months, Rio Grande water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Rio Grande in winter reaches 26.9°C, in spring 26.9°C, in summer the average temperature rises to 28.5°C, and in autumn it is 29°C.

Rio Grande water temperature now


8 September 2025
today temp
29.9°C
7 September 2025
yesterday temp
29.8°C


The sea salinity in Rio Grande is 36.29‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Rio Grande 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 Rio Grande. 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 Rio Grande. Data in table shown for 8 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
2' 9"2' 8"2' 8"2' 8"
0.83 m0.82 m0.82 m0.82 m
12-15 h15-18 h18-21 h21-24 h
2' 8"2' 9"2' 8"2' 7"
0.82 m0.84 m0.82 m0.79 m

Surf report in Rio Grande

Rio Grande wave height and direction

Rio Grande weather forecast

Rio Grande wind speed and direction

Current temperature and weather

Data in a table show Rio Grande temperature today (8 September 2025). For more information and forecast for a few days, go to the weather forecast Rio Grande.

0-3 h3-6 h6-9 h9-12 h
27°C27.2°C27.2°C28.2°C
12-15 h15-18 h18-21 h21-24 h
28.8°C29.1°C28.3°C27.5°C

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

Rio Grande water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Rio Grande. 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 Rio Grande 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
January26.7°C25.8°C27.7°Chot
Sea water temperature in Rio Grande in January
February26.3°C25.5°C27.2°Chot
Sea water temperature in Rio Grande in February
March26.4°C25.1°C27.6°Chot
Sea water temperature in Rio Grande in March
April26.8°C25.3°C28°Chot
Sea water temperature in Rio Grande in April
May27.4°C26.2°C29°Chot
Sea water temperature in Rio Grande in May
June28.2°C26.7°C29.6°Chot
Sea water temperature in Rio Grande in June
July28.4°C27.2°C29.5°Chot
Sea water temperature in Rio Grande in July
August28.9°C28°C29.9°Chot
Sea water temperature in Rio Grande in August
September29.3°C28.3°C30.6°Chot
Sea water temperature in Rio Grande in September
October29.2°C28.2°C30.6°Chot
Sea water temperature in Rio Grande in October
November28.6°C27.2°C29.7°Chot
Sea water temperature in Rio Grande in November
December27.6°C26.2°C29°Chot
Sea water temperature in Rio Grande in December

Chart monthly average water temperature in Rio Grande

Water temperature in Rio Grande

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 Rio Grande 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
Condado Beach29.9°C28°C0.61 m
Escambron Beach29.9°C28°C0.61 m
San Juan30°C28°C0.65 m
Bayamn30°C28°C0.58 m
Culebra29.8°C29°C0.84 m
Lamboglia30.1°C28°C0.68 m
Palmas30.1°C28°C0.55 m
Arroyo30°C28°C0.7 m
Jobos29.9°C28°C0.55 m
Central Aguirre29.8°C28°C0.55 m

Rio Grande photo gallery

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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 Rio Grande 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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