Island Beach State Park water temp
This data the coastal Island Beach State Park 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 Island Beach State Park
Water temperature in Island Beach State Park today is 69.4°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Island Beach State Park was recorded in 2018 and was 72.1°F, and the coldest was recorded in 2008 at 65.5°F. Sea water temperature in Island Beach State Park is expected to drop to 65.7°F in the next 10 days. October average water temperature in Island Beach State Park is 64.9°F, the minimum temperature is 57.6°F, and the maximum is 72.7°F.
The swimming season in Island Beach State Park lasts from June to September. During those months, Island Beach State Park water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Island Beach State Park 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.
Island Beach State Park water temperature now
| October 4, 2025 |
|---|
| today temp |
| 69.4°F |
| October 3, 2025 |
|---|
| yesterday temp |
| 70°F |
The ocean salinity in Island Beach State Park is 29.87‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Island Beach State Park 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 Island Beach State Park. 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 Island Beach State Park. Data in table shown for October 4, 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 |
|---|---|---|---|
| 4' 1" | 3' 10" | 3' 8" | 3' 5" |
| 1.24 m | 1.17 m | 1.11 m | 1.05 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 3' 3" | 3' 3" | 3' 4" | 3' 3" |
| 1 m | 0.98 m | 1.02 m | 0.98 m |
Surf report in Island Beach State Park
Island Beach State Park weather forecast
Current temperature and weather
Data in a table show Island Beach State Park temperature today (October 4, 2025). For more information and forecast for a few days, go to the weather forecast Island Beach State Park.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 54.1°F | 57.9°F | 57.7°F | 61.9°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 73.6°F | 78.3°F | 75°F | 70.2°F |
You may also be interested in other sections of our site for Island Beach State Park: Sunrise and Sunset, Tides
Island Beach State Park water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Island Beach State Park. 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 Island Beach State Park 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 Island Beach State Park
