Westhampton Sea Temperature

Looking to find out what the sea water temperature in Westhampton is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Westhampton and nearby locations.

Water temperature in Westhampton right now

Below is the current sea temperature for Westhampton, United States on January 10, 2026.

Today

Yesterday

A week ago

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 Westhampton on January 10 over the last 10 years is 5.03° C (41.05° F), with a low temperature of 1.27° C (34.29° F) and a high of 7.14° C (44.85° F).

Analysis and forecast for Westhampton water temperatures

The water temperature in Westhampton today is the same as the average temperature of 5.03° C (41.05° F) and the temperature on this day last year was 5.03° C (41.05° F).

The chart and table below shows the change in water temperature in Westhampton over the last 30 days:

DateTemperature (Celsius)Temperature (Fahrenheit)
January 105.03° C41.05° F
January 95.1° C41.18° F
January 84.99° C40.99° F
January 75.02° C41.03° F
January 64.99° C40.97° F
January 55.15° C41.27° F
January 45.17° C41.3° F
January 35.46° C41.82° F
January 25.66° C42.18° F
January 15.73° C42.31° F
December 315.69° C42.24° F
December 305.95° C42.71° F
December 296.29° C43.33° F
December 286.34° C43.41° F
December 276.38° C43.49° F
December 266.56° C43.82° F
December 256.64° C43.94° F
December 246.72° C44.11° F
December 236.8° C44.24° F
December 226.88° C44.39° F
December 217° C44.6° F
December 207.17° C44.91° F
December 197.4° C45.33° F
December 187.63° C45.73° F
December 177.71° C45.87° F
December 167.85° C46.13° F
December 157.84° C46.11° F
December 147.95° C46.31° F
December 138.32° C46.97° F
December 128.5° C47.3° F

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 Westhampton by month

The chart below shows the monthly average water temperature in Westhampton.

For more detailed information on how the sea temperature in Westhampton changes for each month of the year, choose from the months below.

Westhampton map and nearby water temperatures

Westhampton sea temperature map

Locations near Westhampton

Why measure sea surface temperatures (SST) in Westhampton?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Westhampton because they want to understand and learn how the ocean communicates with the atmosphere of Earth.

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Westhampton 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 Westhampton 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.