Cascade Sea Temperature

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

Water temperature in Cascade right now

Below is the current sea temperature for Cascade, Norfolk Island on 30th June 2025.

20.92° C

(69.66° F)

  • yesterday: 21.03° C (69.85° F)
  • a week ago: 20.89° C (69.6° 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 Cascade on June 30th over the last 10 years is 20.21° C (68.38° F), with a low temperature of 19.29° C (66.72° F) and a high of 21.22° C (70.2° F).

Analysis and forecast for Cascade water temperatures

The water temperature in Cascade today is higher than the average temperature of 20.21° C (68.38° F) and the temperature on this day last year, 30th June 2024, was 20.93° C (69.67° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
June 30 20.92° C 69.66° F
June 29 21.03° C 69.85° F
June 28 20.89° C 69.6° F
June 27 20.91° C 69.64° F
June 26 21.2° C 70.16° F
June 25 21.11° C 70° F
June 24 20.99° C 69.78° F
June 23 20.89° C 69.6° F
June 22 20.95° C 69.71° F
June 21 21.1° C 69.98° F
June 20 21.27° C 70.29° F
June 19 21.24° C 70.23° F
June 18 21.14° C 70.05° F
June 17 21.2° C 70.16° F
June 16 21.42° C 70.56° F
June 15 21.45° C 70.61° F
June 14 21.41° C 70.54° F
June 13 21.46° C 70.63° F
June 12 21.5° C 70.7° F
June 11 21.52° C 70.74° F
June 10 21.55° C 70.79° F
June 9 21.61° C 70.9° F
June 8 21.61° C 70.9° F
June 7 21.68° C 71.02° F
June 6 21.79° C 71.22° F
June 5 21.89° C 71.4° F
June 4 21.95° C 71.51° F
June 3 22.04° C 71.67° F
June 2 22.14° C 71.85° F
June 1 22.16° C 71.89° F
May 31 22.23° C 72.01° 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 Cascade by month

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

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

Cascade map and nearby water temperatures

Locations near Cascade

The highest temperature in Norfolk Island today is 21.04° C (69.88° F) in Cascade. The lowest is in Cascade, where the temperature of the water is 21.04° C (69.88° F).

Why measure sea surface temperatures (SST) in Cascade?

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

  • "Cascade Sea Temperature". SeaTemperatures.net. Accessed on June 30, 2025. http://seatemperatures.net/australia-and-oceania/norfolk-island/cascade/.

  • "Cascade Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/australia-and-oceania/norfolk-island/cascade/. Accessed 30 June, 2025

  • Cascade Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/australia-and-oceania/norfolk-island/cascade/.