Oyster Bay Sea Temperature

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

Water temperature in Oyster Bay right now

Below is the current sea temperature for Oyster Bay, Australia on 12th July 2025.

18.1° C

(64.58° F)

  • yesterday: 18.12° C (64.61° F)
  • a week ago: 17.63° C (63.73° 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 Oyster Bay on July 12th over the last 10 years is 18.79° C (65.82° F), with a low temperature of 17.7° C (63.86° F) and a high of 20.43° C (68.77° F).

Analysis and forecast for Oyster Bay water temperatures

The water temperature in Oyster Bay today is lower than the average temperature of 18.79° C (65.82° F) and the temperature on this day last year, 12th July 2024, was 18.14° C (64.65° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 12 18.1° C 64.58° F
July 11 18.12° C 64.61° F
July 10 17.44° C 63.39° F
July 9 17.4° C 63.32° F
July 8 17.48° C 63.46° F
July 7 17.61° C 63.7° F
July 6 17.63° C 63.73° F
July 5 17.63° C 63.73° F
July 4 17.77° C 63.99° F
July 3 17.93° C 64.27° F
July 2 17.8° C 64.04° F
July 1 17.8° C 64.04° F
June 30 18.08° C 64.54° F
June 29 18.14° C 64.65° F
June 28 18.17° C 64.71° F
June 27 18.25° C 64.85° F
June 26 18.48° C 65.26° F
June 25 18.72° C 65.7° F
June 24 18.87° C 65.97° F
June 23 18.99° C 66.18° F
June 22 19.19° C 66.54° F
June 21 19.21° C 66.58° F
June 20 19.13° C 66.43° F
June 19 19.18° C 66.52° F
June 18 19.37° C 66.87° F
June 17 19.38° C 66.88° F
June 16 19.32° C 66.78° F
June 15 19.21° C 66.58° F
June 14 19.09° C 66.36° F
June 13 19.09° C 66.36° F
June 12 19.15° C 66.47° 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 Oyster Bay by month

The chart below shows the monthly average water temperature in Oyster Bay.

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

Oyster Bay map and nearby water temperatures

Locations near Oyster Bay

The highest temperature in Australia today is 26.59° C (79.86° F) in Weipa. The lowest is in Port Phillip Bay, where the temperature of the water is 11.03° C (51.85° F).

Why measure sea surface temperatures (SST) in Oyster Bay?

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

  • "Oyster Bay Sea Temperature". SeaTemperatures.net. Accessed on July 12, 2025. http://seatemperatures.net/australia-and-oceania/australia/oyster-bay/.

  • "Oyster Bay Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/australia/oyster-bay/. Accessed 12 July, 2025

  • Oyster Bay Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/australia/oyster-bay/.