Hammonasset Beach water temp
This data the coastal Hammonasset Beach 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 Hammonasset Beach
Water temperature in Hammonasset Beach today is 59.5°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Hammonasset Beach was recorded in 2017 and was 62.2°F, and the coldest was recorded in 2009 at 55.6°F. Sea water temperature in Hammonasset Beach is expected to drop to 56.3°F in the next 10 days. November average water temperature in Hammonasset Beach is 55.9°F, the minimum temperature is 48.4°F, and the maximum is 63.5°F.
The swimming season in Hammonasset Beach lasts from July to September. During those months, Hammonasset Beach water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Hammonasset Beach in winter reaches 41.9°F, in spring 45.3°F, in summer the average temperature rises to 68.7°F, and in autumn it is 63.7°F.
Hammonasset Beach water temperature now
| November 5, 2025 |
|---|
| today temp |
| 59.5°F |
| November 4, 2025 |
|---|
| yesterday temp |
| 59.9°F |
The ocean salinity in Hammonasset Beach is 27.74‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Hammonasset Beach 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 Hammonasset Beach. 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 Hammonasset Beach. Data in table shown for November 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' 0" | 1' 8" | 1' 4" | 1' 0" |
| 0.61 m | 0.51 m | 0.41 m | 0.31 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 0' 10" | 1' 5" | 2' 7" | 3' 1" |
| 0.25 m | 0.43 m | 0.8 m | 0.95 m |
Surf report in Hammonasset Beach
Hammonasset Beach weather forecast
Current temperature and weather
Data in a table show Hammonasset Beach temperature today (November 5, 2025). For more information and forecast for a few days, go to the weather forecast Hammonasset Beach.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 44.8°F | 42.6°F | 40.1°F | 47.8°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  | |  |
| 52.7°F | 56.5°F | 57.9°F | 57.9°F |
You may also be interested in other sections of our site for Hammonasset Beach: Sunrise and Sunset, Tides
Hammonasset Beach water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Hammonasset Beach. 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 Hammonasset Beach 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 Hammonasset Beach
