This data the coastal Sedge Island 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 Sedge Island today is 71.1°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Sedge Island was recorded in 2018 and was 71.2°F, and the coldest was recorded in 2023 at 65.5°F. Sea water temperature in Sedge Island is expected to drop to 66.6°F in the next 10 days. October average water temperature in Sedge Island is 64.9°F, the minimum temperature is 57.6°F, and the maximum is 72.7°F.
The swimming season in Sedge Island lasts from June to September. During those months, Sedge Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Sedge Island in winter reaches 43.9°F, in spring 48.4°F, in summer the average temperature rises to 71.8°F, and in autumn it is 64.2°F.
October 1, 2025 |
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today temp |
71.1°F |
September 30, 2025 |
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yesterday temp |
71.1°F |
The ocean salinity in Sedge Island is 29.87‰, 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 Sedge Island. 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 Sedge Island. Data in table shown for October 1, 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 |
---|---|---|---|
6' 8" | 7' 2" | 7' 7" | 7' 9" |
2.03 m | 2.19 m | 2.31 m | 2.37 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
7' 8" | 7' 4" | 7' 0" | 6' 10" |
2.34 m | 2.24 m | 2.14 m | 2.08 m |
Data in a table show Sedge Island temperature today (October 1, 2025). For more information and forecast for a few days, go to the weather forecast Sedge Island.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
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64.8°F | 63°F | 60.3°F | 62.2°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
![]() | ![]() | ![]() | ![]() |
64.9°F | 69.6°F | 69.3°F | 63.9°F |
You may also be interested in other sections of our site for Sedge Island: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Sedge Island. 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 Sedge Island 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 | 43°F | 35.6°F | 51.1°F | cold |
Ocean water temperature in Sedge Island in January | ||||
February | 40.5°F | 32.9°F | 45°F | cold |
Ocean water temperature in Sedge Island in February | ||||
March | 42.1°F | 34.3°F | 51.3°F | cold |
Ocean water temperature in Sedge Island in March | ||||
April | 47.3°F | 40.3°F | 54.9°F | cold |
Ocean water temperature in Sedge Island in April | ||||
May | 55.9°F | 48.6°F | 67.8°F | cold |
Ocean water temperature in Sedge Island in May | ||||
June | 66.4°F | 58.6°F | 74.7°F | cold |
Ocean water temperature in Sedge Island in June | ||||
July | 74.1°F | 65.7°F | 80.2°F | warm |
Ocean water temperature in Sedge Island in July | ||||
August | 75°F | 69.8°F | 79.7°F | warm |
Ocean water temperature in Sedge Island in August | ||||
September | 71.6°F | 66.2°F | 78.6°F | warm |
Ocean water temperature in Sedge Island in September | ||||
October | 64.9°F | 57.6°F | 72.7°F | cold |
Ocean water temperature in Sedge Island in October | ||||
November | 56.1°F | 48.6°F | 63.5°F | cold |
Ocean water temperature in Sedge Island in November | ||||
December | 48.4°F | 40.6°F | 55°F | cold |
Ocean water temperature in Sedge Island in December |