Hertford Sea Temperature

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

Water temperature in Hertford right now

Below is the current sea temperature for Hertford, United States on 19th May 2024.

20.2° C

(68.35° F)

  • yesterday: 20.68° C (69.22° F)
  • a week ago: 19.9° C (67.82° F)

Water at this temperature is very pleasant to swim in and if you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

The average sea temperature for Hertford on May 19th over the last 10 years is 18.68° C (65.63° F), with a low temperature of 16.18° C (61.12° F) and a high of 21.5° C (70.7° F).

Analysis and forecast for Hertford water temperatures

The water temperature in Hertford today is higher than the average temperature of 18.68° C (65.63° F) and the temperature on this day last year, 19th May 2023, was 20.2° C (68.36° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
May 19 20.2° C 68.35° F
May 18 20.68° C 69.22° F
May 17 20.89° C 69.6° F
May 16 20.51° C 68.92° F
May 15 20.53° C 68.95° F
May 14 20.23° C 68.41° F
May 13 19.73° C 67.51° F
May 12 19.9° C 67.82° F
May 11 20.61° C 69.1° F
May 10 21.65° C 70.97° F
May 9 21.46° C 70.63° F
May 8 21.17° C 70.11° F
May 7 20.02° C 68.04° F
May 6 19.9° C 67.82° F
May 5 19.13° C 66.43° F
May 4 18.34° C 65.01° F
May 3 18.69° C 65.64° F
May 2 18.67° C 65.61° F
May 1 17.91° C 64.24° F
April 30 17.45° C 63.41° F
April 29 16.98° C 62.56° F
April 28 16.04° C 60.87° F
April 27 15.33° C 59.59° F
April 26 15.04° C 59.07° F
April 25 15.17° C 59.31° F
April 24 15.31° C 59.56° F
April 23 15.3° C 59.54° F
April 22 15.17° C 59.31° F
April 21 16.67° C 62.01° F
April 20 16.97° C 62.55° F
April 19 16.68° C 62.02° 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 Hertford by month

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

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

Hertford map and nearby water temperatures

Locations near Hertford

The highest temperature in United States today is 27.96° C (82.32° F) in Big Coppitt Key. The lowest is in Barrow, where the temperature of the water is -1.63° C (29.08° F).

Why measure sea surface temperatures (SST) in Hertford?

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

  • "Hertford Sea Temperature". SeaTemperatures.net. Accessed on May 19, 2024. http://seatemperatures.net/north-america/united-states/hertford/.

  • "Hertford Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/hertford/. Accessed 19 May, 2024

  • Hertford Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/hertford/.