Geraldton Sea Temperature

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

Water temperature in Geraldton right now

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

20.34° C

(68.62° F)

  • yesterday: 20.52° C (68.94° F)
  • a week ago: 21.47° C (70.65° 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 Geraldton on July 12th over the last 10 years is 20.13° C (68.23° F), with a low temperature of 18.58° C (65.44° F) and a high of 20.98° C (69.76° F).

Analysis and forecast for Geraldton water temperatures

The water temperature in Geraldton today is higher than the average temperature of 20.13° C (68.23° F) and the temperature on this day last year, 12th July 2024, was 20.29° C (68.52° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 12 20.34° C 68.62° F
July 11 20.52° C 68.94° F
July 10 20.81° C 69.46° F
July 9 21.14° C 70.05° F
July 8 21.34° C 70.41° F
July 7 21.09° C 69.96° F
July 6 21.44° C 70.59° F
July 5 21.47° C 70.65° F
July 4 21.82° C 71.28° F
July 3 22.05° C 71.69° F
July 2 22.45° C 72.41° F
July 1 22.2° C 71.96° F
June 30 22.19° C 71.94° F
June 29 22.44° C 72.39° F
June 28 22.44° C 72.39° F
June 27 22.44° C 72.39° F
June 26 22.41° C 72.34° F
June 25 22.58° C 72.64° F
June 24 22.87° C 73.17° F
June 23 23.1° C 73.58° F
June 22 23.35° C 74.03° F
June 21 23.69° C 74.64° F
June 20 23.92° C 75.06° F
June 19 23.95° C 75.11° F
June 18 23.6° C 74.48° F
June 17 23.45° C 74.21° F
June 16 23.19° C 73.74° F
June 15 22.96° C 73.33° F
June 14 22.84° C 73.11° F
June 13 22.8° C 73.04° F
June 12 22.88° C 73.18° 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 Geraldton by month

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

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

Geraldton map and nearby water temperatures

Locations near Geraldton

The highest temperature in Australia today is 26.68° C (80.03° F) in Weipa. The lowest is in Port Phillip Bay, where the temperature of the water is 11.12° C (52.02° F).

Why measure sea surface temperatures (SST) in Geraldton?

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

  • "Geraldton Sea Temperature". SeaTemperatures.net. Accessed on July 12, 2025. http://seatemperatures.net/australia-and-oceania/australia/geraldton/.

  • "Geraldton Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/australia/geraldton/. Accessed 12 July, 2025

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