Cape Cod Sea Temperature
Looking to find out what the sea water temperature in Cape Cod is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Cape Cod and nearby locations.
Water temperature in Cape Cod right now
Below is the current sea temperature for Cape Cod, United States on 25th April 2024.
9.38° C
(48.89° F)
- yesterday: 9.25° C (48.65° F)
- a week ago: 7.76° C (45.97° F)
This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.
The average sea temperature for Cape Cod on April 25th over the last 10 years is 7.95° C (46.31° F), with a low temperature of 5.91° C (42.64° F) and a high of 9.52° C (49.14° F).
Analysis and forecast for Cape Cod water temperatures
The water temperature in Cape Cod today is higher than the average temperature of 7.95° C (46.31° F) and the temperature on this day last year, 25th April 2023, was 9.51° C (49.12° F).
The chart and table below shows the change in water temperature in Cape Cod over the last 30 days:
The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.
Water temperature in Cape Cod by month
The chart below shows the monthly average water temperature in Cape Cod.
For more detailed information on how the sea temperature in Cape Cod changes for each month of the year, choose from the months below.
Cape Cod map and nearby water temperatures
Locations near Cape Cod
The highest temperature in United States today is 27.3° C (81.14° F) in Duck Key. The lowest is in Barrow, where the temperature of the water is -1.82° C (28.73° F).
Why measure sea surface temperatures (SST) in Cape Cod?
The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Cape Cod because they want to understand and learn how the ocean communicates with the atomosphere of Earth.
SST is one measure that provides information on the global climate, and it can be used to predict the weather in Cape Cod as well as atmospheric model simulations and to study marine ecosystems in the area.
Data source and citation
Raw data for the calculations made to find the sea surface temperature in Cape Cod comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.
The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.
If you'd like to use any of the information above in the format it is presented, please use the citation tool below.
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<a href="http://seatemperatures.net/north-america/united-states/cape-cod/">Cape Cod Sea Temperature</a>
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"Cape Cod Sea Temperature". SeaTemperatures.net. Accessed on April 25, 2024. http://seatemperatures.net/north-america/united-states/cape-cod/.
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"Cape Cod Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/cape-cod/. Accessed 25 April, 2024
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Cape Cod Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/cape-cod/.