Long Beach Nahant (MA) water temp
This data the coastal Long Beach Nahant 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 Nahant
Water temperature in Long Beach Nahant today is 63.7°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 Nahant was recorded in 2021 and was 65.3°F, and the coldest was recorded in 2008 at 59.9°F. Sea water temperature in Long Beach Nahant is expected to drop to 61.2°F in the next 10 days. September average water temperature in Long Beach Nahant is 63.7°F, the minimum temperature is 58.5°F, and the maximum is 71.4°F.
The swimming season in Long Beach Nahant lasts only one month - August. During this month, Long Beach Nahant water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Long Beach Nahant in winter reaches 42.8°F, in spring 44.2°F, in summer the average temperature rises to 63.5°F, and in autumn it is 57.4°F.
Long Beach Nahant water temperature now
| September 21, 2025 |
|---|
| today temp |
| 63.7°F |
| September 20, 2025 |
|---|
| yesterday temp |
| 63.7°F |
The ocean salinity in Long Beach Nahant is 31.11‰, and the average salinity of the World Ocean is 35‰.
Surf Forecast in Long Beach Nahant 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 Nahant. 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 Nahant. Data in table shown for September 22, 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 |
|---|---|---|---|
| 1' 7" | 1' 7" | 1' 8" | 1' 9" |
| 0.49 m | 0.49 m | 0.51 m | 0.53 m |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| 1' 10" | 1' 11" | 2' 0" | 2' 1" |
| 0.55 m | 0.58 m | 0.6 m | 0.64 m |
Surf report in Long Beach Nahant
Long Beach Nahant weather forecast
Current temperature and weather
Data in a table show Long Beach Nahant temperature today (September 22, 2025). For more information and forecast for a few days, go to the weather forecast Long Beach Nahant.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 | | |  |
| 57.2°F | 56.5°F | 57°F | 59.5°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
 |  | | |
| 61.5°F | 61.7°F | 61.3°F | 62.1°F |
You may also be interested in other sections of our site for Long Beach Nahant: Sunrise and Sunset, Tides
Long Beach Nahant water temperature by month
These figures shows the average, minimum and maximum monthly sea temperature in Long Beach Nahant. 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 Nahant 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 Nahant
