Sandwich water temp

This data the coastal Sandwich sea 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 sea temperature in Sandwich

Water temperature in Sandwich today is 63.3°F. Based on our historical data over a period of ten years, the warmest water in this day in the Cape Cod Bay near Sandwich was recorded in 2021 and was 68.5°F, and the coldest was recorded in 2017 at 60.6°F. Sea water temperature in Sandwich is expected to drop to 62.6°F in the next 10 days. September average water temperature in Sandwich is 66.4°F, the minimum temperature is 60.3°F, and the maximum is 73.8°F.

The swimming season in Sandwich lasts from July to September. During those months, Sandwich water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Sandwich in winter reaches 40.3°F, in spring 45.1°F, in summer the average temperature rises to 66.7°F, and in autumn it is 59.2°F.

Sandwich water temperature now

The sea salinity in Sandwich is 31.06‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Sandwich 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 Sandwich. 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 Sandwich. Data in table shown for September 23, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Sandwich

Sandwich weather forecast

Current temperature and weather

Data in a table show Sandwich temperature today (September 23, 2025). For more information and forecast for a few days, go to the weather forecast Sandwich.

0-3 h	3-6 h	6-9 h	9-12 h
61°F	61.7°F	62.6°F	67.5°F

12-15 h	15-18 h	18-21 h	21-24 h
71.4°F	72.1°F	66.9°F	64.2°F

Sandwich water temperature by month

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

The nearest beaches and cities from Sandwich 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
Scusset Beach	63.3°F	71.6°F		1' 1"
Town Neck Beach	63.3°F	71.6°F		1' 1"
Sagamore Beach	63.1°F	71.6°F		1' 0"
Springhill Beach	63.9°F	71.6°F		1' 1"
Ellisville	63°F	71.6°F		1' 3"
Manomet	63°F	71.6°F		1' 3"
Sandy Neck Beach	64.9°F	71.6°F		1' 2"
Barnstable	66.2°F	71.6°F		1' 8"
Mayflower Beach	65.3°F	71.6°F		1' 1"
Grays Beach	65.3°F	71.6°F		1' 1"

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East Sandwich Beach

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Our report for Sandwich 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.