Rainbow Beach Sea Temperature

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

Water temperature in Rainbow Beach right now

Below is the current sea temperature for Rainbow Beach, Australia on 18th July 2025.

21.45° C

(70.61° F)

  • yesterday: 21.52° C (70.74° F)
  • a week ago: 22.07° C (71.73° 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 Rainbow Beach on July 18th over the last 10 years is 21.18° C (70.13° F), with a low temperature of 19.8° C (67.64° F) and a high of 22.12° C (71.82° F).

Analysis and forecast for Rainbow Beach water temperatures

The water temperature in Rainbow Beach today is higher than the average temperature of 21.18° C (70.13° F) and the temperature on this day last year, 18th July 2024, was 21.44° C (70.59° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 18 21.45° C 70.61° F
July 17 21.52° C 70.74° F
July 16 21.48° C 70.66° F
July 15 21.59° C 70.86° F
July 14 21.5° C 70.7° F
July 13 21.72° C 71.1° F
July 12 21.85° C 71.33° F
July 11 22.07° C 71.73° F
July 10 22.27° C 72.09° F
July 9 22.07° C 71.73° F
July 8 21.75° C 71.15° F
July 7 21.79° C 71.22° F
July 6 21.34° C 70.41° F
July 5 21.04° C 69.87° F
July 4 21.56° C 70.81° F
July 3 21.45° C 70.61° F
July 2 21.6° C 70.88° F
July 1 21.84° C 71.31° F
June 30 22.05° C 71.69° F
June 29 22.23° C 72.01° F
June 28 22.21° C 71.98° F
June 27 22.02° C 71.64° F
June 26 22.18° C 71.92° F
June 25 22.18° C 71.92° F
June 24 21.92° C 71.46° F
June 23 21.66° C 70.99° F
June 22 21.5° C 70.7° F
June 21 21.36° C 70.45° F
June 20 21.36° C 70.45° F
June 19 21.38° C 70.48° F
June 18 21.27° C 70.29° 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 Rainbow Beach by month

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

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

January February March April May June July August September October November December

Rainbow Beach map and nearby water temperatures

Locations near Rainbow Beach

Tin Can Bay

Australia, Australia and Oceania

5.51 miles away

The highest temperature in Australia today is 26.73° C (80.12° F) in Darwin. The lowest is in Port Phillip Bay, where the temperature of the water is 10.7° C (51.26° F).

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

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

  • "Rainbow Beach Sea Temperature". SeaTemperatures.net. Accessed on July 18, 2025. http://seatemperatures.net/australia-and-oceania/australia/rainbow-beach/.

  • "Rainbow Beach Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/australia/rainbow-beach/. Accessed 18 July, 2025

  • Rainbow Beach Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/australia/rainbow-beach/.