Georgetown Sea Temperature

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

Water temperature in Georgetown right now

Below is the current sea temperature for Georgetown, Ascension Island on 5th October 2022.

25.69° C

(78.24° F)

  • yesterday: 24.18° C (75.52° F)
  • a week ago: 24.29° C (75.72° F)

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

The average sea temperature for Georgetown on October 5th over the last 10 years is 24.45° C (76.01° F), with a low temperature of 23.68° C (74.62° F) and a high of 25.73° C (78.31° F).

Analysis and forecast for Georgetown water temperatures

The water temperature in Georgetown today is higher than the average temperature of 24.45° C (76.01° F) and the temperature on this day last year, 5th October 2021, was 25.73° C (78.31° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
October 5 25.69° C 78.24° F
October 4 24.18° C 75.52° F
October 4 24.18° C 75.52° F
October 3 24.26° C 75.67° F
October 2 24.19° C 75.54° F
October 1 24.25° C 75.65° F
September 30 24.26° C 75.67° F
September 29 24.2° C 75.56° F
September 28 24.29° C 75.72° F
September 27 24.39° C 75.9° F
September 26 24.3° C 75.74° F
September 25 24.31° C 75.76° F
September 24 24.43° C 75.97° F
September 23 24.46° C 76.03° F
September 22 24.38° C 75.88° F
September 21 24.46° C 76.03° F
September 20 24.48° C 76.06° F
September 19 24.54° C 76.17° F
September 18 24.57° C 76.23° F
September 17 24.63° C 76.33° F
September 16 24.68° C 76.42° F
September 15 24.66° C 76.39° F
September 14 24.64° C 76.35° F
September 13 24.59° C 76.26° F
September 12 24.65° C 76.37° F
September 11 24.66° C 76.39° F
September 10 24.69° C 76.44° F
September 9 24.7° C 76.46° F
September 8 24.69° C 76.44° F
September 7 24.67° C 76.41° 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 Georgetown by month

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

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

Georgetown map and nearby water temperatures

The highest temperature in Ascension Island today is 25.26° C (77.47° F) in Georgetown. The lowest is in Georgetown, where the temperature of the water is 25.26° C (77.47° F).

Why measure sea surface temperatures (SST) in Georgetown?

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

  • "Georgetown Sea Temperature". SeaTemperatures.net. Accessed on October 5, 2022. http://seatemperatures.net/africa/ascension-island/georgetown/.

  • "Georgetown Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/africa/ascension-island/georgetown/. Accessed 5 October, 2022

  • Georgetown Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/africa/ascension-island/georgetown/.