Fremantle Sea Temperature

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

Water temperature in Fremantle right now

Below is the current sea temperature for Fremantle, Australia on 26th May 2022.

21.92° C

(71.45° F)

  • yesterday: 20.71° C (69.28° F)
  • a week ago: 21.05° C (69.89° 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 Fremantle on May 26th over the last 10 years is 21.29° C (70.33° F), with a low temperature of 19.38° C (66.88° F) and a high of 22.42° C (72.36° F).

Analysis and forecast for Fremantle water temperatures

The water temperature in Fremantle today is higher than the average temperature of 21.29° C (70.33° F) and the temperature on this day last year, 26th May 2021, was 21.97° C (71.55° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
May 26 21.92° C 71.45° F
May 25 20.71° C 69.28° F
May 25 20.71° C 69.28° F
May 24 20.7° C 69.26° F
May 23 21.16° C 70.09° F
May 22 21.13° C 70.03° F
May 21 20.92° C 69.66° F
May 20 21.09° C 69.96° F
May 19 21.05° C 69.89° F
May 18 21.18° C 70.12° F
May 17 21.12° C 70.02° F
May 16 21.03° C 69.85° F
May 15 21.02° C 69.84° F
May 14 21.12° C 70.02° F
May 13 21.21° C 70.18° F
May 12 21.21° C 70.18° F
May 11 21.52° C 70.74° F
May 10 21.1° C 69.98° F
May 9 21.16° C 70.09° F
May 8 21.12° C 70.02° F
May 7 21.17° C 70.11° F
May 6 21.14° C 70.05° F
May 5 21.28° C 70.3° F
May 4 21.5° C 70.7° F
May 3 21.71° C 71.08° F
May 2 21.85° C 71.33° F
May 1 21.83° C 71.29° F
April 30 21.75° C 71.15° F
April 29 21.75° C 71.15° F
April 28 21.83° C 71.29° 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 Fremantle by month

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

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

Fremantle map and nearby water temperatures

Locations near Fremantle

The highest temperature in Australia today is 28.82° C (83.87° F) in Weipa. The lowest is in Austins Ferry, where the temperature of the water is 13.95° C (57.1° F).

Why measure sea surface temperatures (SST) in Fremantle?

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

  • "Fremantle Sea Temperature". Accessed on May 26, 2022.

  • "Fremantle Sea Temperature"., Accessed 26 May, 2022

  • Fremantle Sea Temperature. Retrieved from