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Water temperature in Port Nelson

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This data the coastal Port Nelson 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 Port Nelson

Water temperature in Port Nelson today is 85.6°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Port Nelson was recorded in 2023 and was 86.4°F, and the coldest was recorded in 2008 at 83.1°F. Sea water temperature in Port Nelson is expected to drop to 84.7°F in the next 10 days. September average water temperature in Port Nelson is 84.9°F, the minimum temperature is 81.9°F, and the maximum is 86.7°F.

The swimming season in Port Nelson lasts from January to December, twelve months per year! During those months, Port Nelson water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Port Nelson in winter reaches 78.8°F, in spring 78.6°F, in summer the average temperature rises to 83.7°F, and in autumn it is 83.7°F.

Port Nelson water temperature now


September 5, 2025
today temp
85.6°F
September 4, 2025
yesterday temp
85.5°F


The sea salinity in Port Nelson is 36.84‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Port Nelson 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 Port Nelson. 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 Port Nelson. Data in table shown for September 5, 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
1' 10"1' 10"1' 11"2' 0"
0.57 m0.57 m0.59 m0.6 m
12-15 h15-18 h18-21 h21-24 h
1' 11"2' 0"2' 0"2' 0"
0.59 m0.6 m0.6 m0.6 m

Surf report in Port Nelson

Port Nelson wave height and direction

Port Nelson weather forecast

Port Nelson wind speed and direction

Current temperature and weather

Data in a table show Port Nelson temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Port Nelson.

0-3 h3-6 h6-9 h9-12 h
82°F81.9°F82.4°F82.9°F
12-15 h15-18 h18-21 h21-24 h
85.8°F84.6°F83.5°F83.8°F

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

Port Nelson water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Port Nelson. 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 Port Nelson 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
January78.6°F75.2°F80.8°Fhot
Sea water temperature in Port Nelson in January
February77.9°F74.3°F79.7°Fhot
Sea water temperature in Port Nelson in February
March77.5°F73.8°F80.1°Fhot
Sea water temperature in Port Nelson in March
April78.4°F74.8°F81.9°Fhot
Sea water temperature in Port Nelson in April
May80.1°F76.5°F82.4°Fhot
Sea water temperature in Port Nelson in May
June82.4°F78.8°F85.1°Fhot
Sea water temperature in Port Nelson in June
July83.8°F81.3°F86.7°Fhot
Sea water temperature in Port Nelson in July
August84.6°F82.6°F86.9°Fhot
Sea water temperature in Port Nelson in August
September84.9°F81.9°F86.7°Fhot
Sea water temperature in Port Nelson in September
October84°F80.8°F86.9°Fhot
Sea water temperature in Port Nelson in October
November81.9°F78.4°F84.2°Fhot
Sea water temperature in Port Nelson in November
December80.1°F75.9°F82.9°Fhot
Sea water temperature in Port Nelson in December

Chart monthly average water temperature in Port Nelson

Water temperature in Port Nelson

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 60°F
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Port Nelson 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
Stella Maris85.5°F84.2°F1' 8"
Cape Santa Maria85.5°F86°F1' 4"
Cockburn Town85.1°F82.4°F1' 11"
San Salvador Island85.1°F82.4°F1' 11"
Long Island86°F84.2°F1' 7"
Columbus Isle85.1°F84.2°F2' 0"
Great Exuma86.2°F86°F0' 11"
George Town86.4°F86°F0' 11"
Cat Island85.6°F84.2°F1' 8"
Moss Town86.2°F86°F0' 11"

Port Nelson 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 Port Nelson 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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