This data the coastal Long Neck ocean 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.
Water temperature in Long Neck today is 73.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Long Neck was recorded in 2018 and was 79.2°F, and the coldest was recorded in 2024 at 71.2°F. Sea water temperature in Long Neck is expected to drop to 73.2°F in the next 10 days. September average water temperature in Long Neck is 73°F, the minimum temperature is 66.4°F, and the maximum is 81.1°F.
The swimming season in Long Neck lasts from June to October. During those months, Long Neck water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Long Neck in winter reaches 43.3°F, in spring 51.1°F, in summer the average temperature rises to 73.8°F, and in autumn it is 64.9°F.
September 5, 2025 |
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today temp |
73.8°F |
September 4, 2025 |
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yesterday temp |
72.7°F |
The ocean salinity in Long Neck is 30.63‰, and the average salinity of the World Ocean is 35‰.
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 Long Neck. 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 Long Neck. 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 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
2' 3" | 2' 0" | 1' 10" | 1' 7" |
0.68 m | 0.62 m | 0.56 m | 0.49 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
1' 6" | 1' 8" | 2' 0" | 1' 11" |
0.46 m | 0.52 m | 0.62 m | 0.58 m |
Data in a table show Long Neck temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Long Neck.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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![]() | ![]() | ![]() | ![]() |
72.7°F | 72.1°F | 70.2°F | 74.3°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
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83.7°F | 84.4°F | 81.7°F | 75°F |
You may also be interested in other sections of our site for Long Neck: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Long Neck. 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 Long Neck 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
Month | Avr | Min | Max | |
---|---|---|---|---|
January | 42.1°F | 34.5°F | 50.7°F | cold |
Ocean water temperature in Long Neck in January | ||||
February | 40.3°F | 32.5°F | 48.7°F | cold |
Ocean water temperature in Long Neck in February | ||||
March | 43.5°F | 32.7°F | 53.1°F | cold |
Ocean water temperature in Long Neck in March | ||||
April | 50.5°F | 41.4°F | 61.2°F | cold |
Ocean water temperature in Long Neck in April | ||||
May | 59.4°F | 50.5°F | 71.4°F | cold |
Ocean water temperature in Long Neck in May | ||||
June | 69.6°F | 61.3°F | 81°F | warm |
Ocean water temperature in Long Neck in June | ||||
July | 75.7°F | 69.4°F | 83.8°F | warm |
Ocean water temperature in Long Neck in July | ||||
August | 75.7°F | 70°F | 82.8°F | warm |
Ocean water temperature in Long Neck in August | ||||
September | 73°F | 66.4°F | 81.1°F | warm |
Ocean water temperature in Long Neck in September | ||||
October | 65.7°F | 56.8°F | 74.7°F | cold |
Ocean water temperature in Long Neck in October | ||||
November | 56.1°F | 48.4°F | 65.3°F | cold |
Ocean water temperature in Long Neck in November | ||||
December | 47.7°F | 39°F | 55.9°F | cold |
Ocean water temperature in Long Neck in December |