Greenwich Sea Temperature

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

Water temperature in Greenwich right now

Below is the current sea temperature for Greenwich, Australia on 6th July 2022.

19.37° C

(66.86° F)

  • yesterday: 19.29° C (66.72° F)
  • a week ago: 20.27° C (68.49° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

The average sea temperature for Greenwich on July 6th over the last 10 years is 18.97° C (66.14° F), with a low temperature of 17.46° C (63.43° F) and a high of 20.55° C (68.99° F).

Analysis and forecast for Greenwich water temperatures

The water temperature in Greenwich today is higher than the average temperature of 18.97° C (66.14° F) and the temperature on this day last year, 6th July 2021, was 19.29° C (66.72° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 6 19.37° C 66.86° F
July 5 19.29° C 66.72° F
July 4 19.51° C 67.12° F
July 3 19.61° C 67.3° F
July 2 19.94° C 67.89° F
July 1 19.93° C 67.87° F
June 30 20.21° C 68.38° F
June 29 20.27° C 68.49° F
June 28 20.15° C 68.27° F
June 27 20.09° C 68.16° F
June 26 20.26° C 68.47° F
June 25 20.53° C 68.95° F
June 24 20.71° C 69.28° F
June 23 20.62° C 69.12° F
June 22 20.35° C 68.63° F
June 21 20.15° C 68.27° F
June 20 20.2° C 68.36° F
June 19 19.97° C 67.95° F
June 18 19.71° C 67.48° F
June 17 19.53° C 67.15° F
June 16 19.52° C 67.14° F
June 15 19.56° C 67.21° F
June 14 19.54° C 67.17° F
June 13 19.47° C 67.05° F
June 12 19.48° C 67.06° F
June 11 19.53° C 67.15° F
June 10 19.59° C 67.26° F
June 9 19.79° C 67.62° F
June 8 20.11° C 68.2° F
June 7 20.53° C 68.95° F
June 6 21.03° C 69.85° 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 Greenwich by month

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

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

Greenwich map and nearby water temperatures

Locations near Greenwich

The highest temperature in Australia today is 27.2° C (80.95° F) in Darwin. The lowest is in Port Phillip Bay, where the temperature of the water is 12.17° C (53.9° F).

Why measure sea surface temperatures (SST) in Greenwich?

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

  • "Greenwich Sea Temperature". SeaTemperatures.net. Accessed on July 6, 2022. http://seatemperatures.net/australia-and-oceania/australia/greenwich/.

  • "Greenwich Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/australia/greenwich/. Accessed 6 July, 2022

  • Greenwich Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/australia/greenwich/.