Long Beach Island water temp
This data the coastal Long Beach 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.
Current ocean temperature in Long Beach Island
Water temperature in Long Beach Island today is 70.3°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Long Beach Island was recorded in 2018 and was 72.5°F, and the coldest was recorded in 2013 at 67.3°F. Sea water temperature in Long Beach Island is expected to drop to 68.2°F in the next 10 days. September average water temperature in Long Beach Island is 72°F, the minimum temperature is 66.2°F, and the maximum is 79.5°F.
The swimming season in Long Beach Island lasts from June to September. During those months, Long Beach Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Long Beach Island in winter reaches 43.5°F, in spring 48.7°F, in summer the average temperature rises to 72.1°F, and in autumn it is 64.4°F.
Long Beach Island water temperature now
| September 24, 2025 |
|---|
| today temp |
| 70.3°F |
| September 23, 2025 |
|---|
| yesterday temp |
| 69.8°F |
The ocean salinity in Long Beach Island is 29.90‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Long Beach Island 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 Long Beach 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 Long Beach Island. Data in table shown for September 24, 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 |
|---|---|---|---|
| 3' 7" | 3' 5" | 3' 2" | 3' 0" |
| 1.1 m | 1.03 m | 0.96 m | 0.91 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 2' 10" | 2' 9" | 2' 7" | 2' 7" |
| 0.87 m | 0.83 m | 0.8 m | 0.79 m |
Surf report in Long Beach Island
Long Beach Island weather forecast
Current temperature and weather
Data in a table show Long Beach Island temperature today (September 24, 2025). For more information and forecast for a few days, go to the weather forecast Long Beach Island.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 70.2°F | 69.8°F | 69.8°F | 69.3°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  |  | |
| 70.5°F | 70.9°F | 69.6°F | 68.7°F |
You may also be interested in other sections of our site for Long Beach Island: Sunrise and Sunset, Tides
Long Beach Island water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Long Beach 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 Long Beach 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
Chart monthly average water temperature in Long Beach Island
