Cape Ann water temp

This data the coastal Cape Ann 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 Cape Ann

Water temperature in Cape Ann today is 63.9°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Cape Ann was recorded in 2021 and was 65.5°F, and the coldest was recorded in 2008 at 59.9°F. Sea water temperature in Cape Ann is expected to drop to 61.2°F in the next 10 days. September average water temperature in Cape Ann is 63.7°F, the minimum temperature is 58.5°F, and the maximum is 71.4°F.

The swimming season in Cape Ann lasts only one month - August. During this month, Cape Ann water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Cape Ann in winter reaches 43°F, in spring 44.2°F, in summer the average temperature rises to 63.7°F, and in autumn it is 57.6°F.

Cape Ann water temperature now

The ocean salinity in Cape Ann is 31.11‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Cape Ann 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 Cape Ann. 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 Cape Ann. 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)

Surf report in Cape Ann

Cape Ann weather forecast

Current temperature and weather

Data in a table show Cape Ann temperature today (September 22, 2025). For more information and forecast for a few days, go to the weather forecast Cape Ann.

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

Cape Ann water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Cape Ann. 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 Cape Ann 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 Cape Ann

The nearest beaches and cities from Cape Ann with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Annisquam	63.5°F	62.6°F		1' 7"
Coffins Beach	63.5°F	62.6°F		1' 7"
Ipswich	63.5°F	64.4°F		1' 7"
Plum Island	63.5°F	62.6°F		1' 7"
Beverly Cove	63.5°F	62.6°F		1' 3"
Newburyport	63.5°F	62.6°F		1' 7"
Devereux Beach	64.2°F	62.6°F		1' 3"
Marblehead	64°F	62.6°F		0' 11"
Salisbury	63.7°F	62.6°F		1' 8"
Boston	63.7°F	60.8°F		1' 7"

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Get widget or API for your website

Our report for Cape Ann is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.