Coolum Beach Sea Temperature

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

Water temperature in Coolum Beach right now

Below is the current sea temperature for Coolum Beach, Australia on 21st April 2024.

24.87° C

(76.76° F)

  • yesterday: 25.03° C (77.05° F)
  • a week ago: 25.8° C (78.44° 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 Coolum Beach on April 21st over the last 10 years is 24.98° C (76.96° F), with a low temperature of 24.26° C (75.67° F) and a high of 26.09° C (78.96° F).

Analysis and forecast for Coolum Beach water temperatures

The water temperature in Coolum Beach today is lower than the average temperature of 24.98° C (76.96° F) and the temperature on this day last year, 21st April 2023, was 24.86° C (76.75° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
April 21 24.87° C 76.76° F
April 20 25.03° C 77.05° F
April 19 25.82° C 78.48° F
April 18 25.76° C 78.37° F
April 17 26.06° C 78.91° F
April 16 25.9° C 78.62° F
April 15 25.88° C 78.58° F
April 14 25.8° C 78.44° F
April 13 25.83° C 78.49° F
April 12 25.72° C 78.3° F
April 11 25.7° C 78.26° F
April 10 25.92° C 78.66° F
April 9 26.17° C 79.11° F
April 8 26.39° C 79.5° F
April 7 26.41° C 79.54° F
April 6 26.23° C 79.21° F
April 5 26.21° C 79.18° F
April 4 26.18° C 79.12° F
April 3 26.18° C 79.12° F
April 2 26.23° C 79.21° F
April 1 26.24° C 79.23° F
March 31 26.26° C 79.27° F
March 30 26.38° C 79.48° F
March 29 26.5° C 79.7° F
March 28 26.66° C 79.99° F
March 27 26.75° C 80.15° F
March 26 26.83° C 80.29° F
March 25 26.95° C 80.51° F
March 24 27.23° C 81.01° F
March 23 27.17° C 80.91° F
March 22 27.17° C 80.91° 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 Coolum Beach by month

The chart below shows the monthly average water temperature in Coolum Beach.

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

Coolum Beach map and nearby water temperatures

Locations near Coolum Beach

The highest temperature in Australia today is 31.14° C (88.05° F) in Gulf of Carpentaria. The lowest is in Austins Ferry, where the temperature of the water is 16.24° C (61.23° F).

Why measure sea surface temperatures (SST) in Coolum Beach?

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

  • "Coolum Beach Sea Temperature". Accessed on April 21, 2024.

  • "Coolum Beach Sea Temperature"., Accessed 21 April, 2024

  • Coolum Beach Sea Temperature. Retrieved from