Osterville water temp

This data the coastal Osterville 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 Osterville

Water temperature in Osterville today is 71.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Atlantic Ocean near Osterville was recorded in 2018 and was 75.9°F, and the coldest was recorded in 2007 at 66.2°F. Sea water temperature in Osterville is expected to drop to 69.6°F in the next 10 days. September average water temperature in Osterville is 68.9°F, the minimum temperature is 62.6°F, and the maximum is 76.8°F.

The swimming season in Osterville lasts from July to September. During those months, Osterville water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Osterville in winter reaches 39.7°F, in spring 46.2°F, in summer the average temperature rises to 69.3°F, and in autumn it is 60.8°F.

Osterville water temperature now

The sea salinity in Osterville is 31.86‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Osterville 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 Osterville. 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 Osterville. Data in table shown for September 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Osterville

Osterville weather forecast

Current temperature and weather

Data in a table show Osterville temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Osterville.

0-3 h	3-6 h	6-9 h	9-12 h
64°F	64.9°F	68°F	69.6°F

12-15 h	15-18 h	18-21 h	21-24 h
71.1°F	72.5°F	71.2°F	69.8°F

Osterville water temperature by month

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

The nearest beaches and cities from Osterville 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
Mashpee	71.6°F	73.4°F		1' 10"
Popponesset	71.6°F	73.4°F		1' 10"
Craigville Beach	72.3°F	71.6°F		2' 2"
Centerville	72.3°F	71.6°F		2' 2"
Dowses Beach	72.3°F	71.6°F		2' 2"
Covell's Beach	72.3°F	71.6°F		2' 2"
New Seabury	71.1°F	73.4°F		2' 3"
South Cape Beach	70.7°F	71.6°F		2' 3"
Hyannis	72.3°F	71.6°F		2' 2"
Kalmus Beach	72.3°F	71.6°F		2' 2"

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Our report for Osterville 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.