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 29th January 2023.

26.91° C

(80.44° F)

  • yesterday: 26.86° C (80.35° F)
  • a week ago: 26.8° C (80.24° 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 January 29th over the last 10 years is 26.58° C (79.85° F), with a low temperature of 25.57° C (78.03° F) and a high of 27.71° C (81.88° F).

Analysis and forecast for Georgetown water temperatures

The water temperature in Georgetown today is higher than the average temperature of 26.58° C (79.85° F) and the temperature on this day last year, 29th January 2022, was 26.91° C (80.44° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
January 29 26.91° C 80.44° F
January 28 26.86° C 80.35° F
January 26 26.84° C 80.31° F
January 25 26.96° C 80.53° F
January 24 26.94° C 80.49° F
January 23 26.96° C 80.53° F
January 22 26.8° C 80.24° F
January 21 26.63° C 79.93° F
January 20 26.51° C 79.72° F
January 19 26.49° C 79.68° F
January 18 26.43° C 79.57° F
January 17 26.51° C 79.72° F
January 16 26.66° C 79.99° F
January 15 26.65° C 79.97° F
January 14 26.67° C 80.01° F
January 13 26.58° C 79.84° F
January 12 26.49° C 79.68° F
January 11 26.3° C 79.34° F
January 10 26.28° C 79.3° F
January 9 26.43° C 79.57° F
January 8 26.43° C 79.57° F
January 7 26.34° C 79.41° F
January 6 26.06° C 78.91° F
January 5 26.16° C 79.09° F
January 4 26.08° C 78.94° F
January 3 25.8° C 78.44° F
January 2 25.77° C 78.39° F
January 1 25.69° C 78.24° F
December 31 25.65° C 78.17° F
December 30 25.62° C 78.12° F
December 29 25.62° C 78.12° 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 26.74° C (80.14° F) in Georgetown. The lowest is in Georgetown, where the temperature of the water is 26.74° C (80.14° 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". Accessed on January 29, 2023.

  • "Georgetown Sea Temperature"., Accessed 29 January, 2023

  • Georgetown Sea Temperature. Retrieved from