Hewlett Harbor Sea Temperature

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

Water temperature in Hewlett Harbor right now

Below is the current sea temperature for Hewlett Harbor, United States on 8th May 2024.

13.28° C

(55.9° F)

  • yesterday: 11.87° C (53.37° F)
  • a week ago: 11.6° C (52.88° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

The average sea temperature for Hewlett Harbor on May 8th over the last 10 years is 11.55° C (52.8° F), with a low temperature of 9.66° C (49.39° F) and a high of 13.21° C (55.78° F).

Analysis and forecast for Hewlett Harbor water temperatures

The water temperature in Hewlett Harbor today is higher than the average temperature of 11.55° C (52.8° F) and the temperature on this day last year, 8th May 2023, was 13.21° C (55.78° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
May 8 13.28° C 55.9° F
May 7 11.87° C 53.37° F
May 7 11.87° C 53.37° F
May 6 11.67° C 53.01° F
May 5 11.63° C 52.93° F
May 4 12.29° C 54.12° F
May 3 12.88° C 55.18° F
May 2 12.27° C 54.09° F
May 1 11.6° C 52.88° F
April 30 11.52° C 52.74° F
April 29 11.03° C 51.85° F
April 28 9.17° C 48.51° F
April 27 9.64° C 49.35° F
April 26 9.38° C 48.88° F
April 25 9.46° C 49.03° F
April 24 9.68° C 49.42° F
April 23 9.37° C 48.87° F
April 22 8.97° C 48.15° F
April 21 9.2° C 48.56° F
April 20 9.14° C 48.45° F
April 19 9.12° C 48.42° F
April 18 9.44° C 48.99° F
April 17 9.79° C 49.62° F
April 16 9.92° C 49.86° F
April 15 9.2° C 48.56° F
April 14 8.76° C 47.77° F
April 13 8.75° C 47.75° F
April 12 8.51° C 47.32° F
April 11 8.01° C 46.42° F
April 10 7.9° C 46.22° 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 Hewlett Harbor by month

The chart below shows the monthly average water temperature in Hewlett Harbor.

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

Hewlett Harbor map and nearby water temperatures

Locations near Hewlett Harbor

The highest temperature in United States today is 28.24° C (82.82° F) in Duck Key. The lowest is in Barrow, where the temperature of the water is -1.6° C (29.11° F).

Why measure sea surface temperatures (SST) in Hewlett Harbor?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Hewlett Harbor 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 Hewlett Harbor 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 Hewlett Harbor 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.

  • "Hewlett Harbor Sea Temperature". SeaTemperatures.net. Accessed on May 8, 2024. http://seatemperatures.net/north-america/united-states/hewlett-harbor/.

  • "Hewlett Harbor Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/hewlett-harbor/. Accessed 8 May, 2024

  • Hewlett Harbor Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/hewlett-harbor/.