Knysna Sea Temperature

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

Water temperature in Knysna right now

Below is the current sea temperature for Knysna, South Africa on 29th March 2024.

17.42° C

(63.35° F)

  • yesterday: 17.58° C (63.64° F)
  • a week ago: 20.5° C (68.9° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

The average sea temperature for Knysna on March 29th over the last 10 years is 19.23° C (66.62° F), with a low temperature of 17.37° C (63.27° F) and a high of 20.75° C (69.35° F).

Analysis and forecast for Knysna water temperatures

The water temperature in Knysna today is lower than the average temperature of 19.23° C (66.62° F) and the temperature on this day last year, 29th March 2023, was 17.37° C (63.27° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
March 29 17.42° C 63.35° F
March 28 17.58° C 63.64° F
March 27 19.93° C 67.87° F
March 26 20.16° C 68.29° F
March 25 20.28° C 68.5° F
March 24 20.64° C 69.15° F
March 23 20.68° C 69.22° F
March 22 20.5° C 68.9° F
March 21 20.38° C 68.68° F
March 20 19.7° C 67.46° F
March 19 19.66° C 67.39° F
March 18 19.36° C 66.85° F
March 17 19.43° C 66.97° F
March 16 20.11° C 68.2° F
March 15 20.36° C 68.65° F
March 14 20.36° C 68.65° F
March 13 20.27° C 68.49° F
March 12 20.29° C 68.52° F
March 11 20.59° C 69.06° F
March 10 20.56° C 69.01° F
March 9 20.26° C 68.47° F
March 8 19.85° C 67.73° F
March 7 20.05° C 68.09° F
March 6 19.56° C 67.21° F
March 5 19.53° C 67.15° F
March 4 19.6° C 67.28° F
March 3 19.84° C 67.71° F
March 2 19.92° C 67.86° F
March 1 20.03° C 68.05° F
February 29 20.04° C 68.07° F
February 28 20.09° C 68.16° 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 Knysna by month

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

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

Knysna map and nearby water temperatures

Locations near Knysna

The highest temperature in South Africa today is 27.63° C (81.73° F) in Sodwana Bay. The lowest is in Bloubergstrand, where the temperature of the water is 15.85° C (60.53° F).

Why measure sea surface temperatures (SST) in Knysna?

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

  • "Knysna Sea Temperature". SeaTemperatures.net. Accessed on March 29, 2024. http://seatemperatures.net/africa/south-africa/knysna/.

  • "Knysna Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/africa/south-africa/knysna/. Accessed 29 March, 2024

  • Knysna Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/africa/south-africa/knysna/.