Puerto San Julian Sea Temperature

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

Water temperature in Puerto San Julian right now

Below is the current sea temperature for Puerto San Julian, Argentina on 10th November 2025.

8.56° C

(47.41° F)

  • yesterday: 9.07° C (48.33° F)
  • a week ago: 8.46° C (47.23° F)

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

The average sea temperature for Puerto San Julian on November 10th over the last 10 years is 8.57° C (47.43° F), with a low temperature of 7.29° C (45.12° F) and a high of 10.45° C (50.81° F).

Analysis and forecast for Puerto San Julian water temperatures

The water temperature in Puerto San Julian today is lower than the average temperature of 8.57° C (47.43° F) and the temperature on this day last year, 10th November 2024, was 8.63° C (47.53° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
November 10 8.56° C 47.41° F
November 9 9.07° C 48.33° F
November 9 9.07° C 48.33° F
November 8 8.66° C 47.59° F
November 7 8.68° C 47.62° F
November 6 8.58° C 47.44° F
November 5 8.4° C 47.12° F
November 4 8.56° C 47.41° F
November 3 8.46° C 47.23° F
November 2 8.44° C 47.19° F
November 1 8.49° C 47.28° F
October 31 8.56° C 47.41° F
October 30 8.53° C 47.35° F
October 29 8.34° C 47.01° F
October 28 7.86° C 46.15° F
October 27 7.68° C 45.82° F
October 26 7.7° C 45.86° F
October 25 7.9° C 46.22° F
October 24 7.98° C 46.36° F
October 23 7.91° C 46.24° F
October 22 7.69° C 45.84° F
October 21 7.87° C 46.17° F
October 20 7.96° C 46.33° F
October 19 8° C 46.4° F
October 18 7.78° C 46° F
October 17 7.64° C 45.75° F
October 16 7.72° C 45.9° F
October 15 7.75° C 45.95° F
October 14 7.63° C 45.73° F
October 13 7.66° C 45.79° 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 Puerto San Julian by month

The chart below shows the monthly average water temperature in Puerto San Julian.

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

Puerto San Julian map and nearby water temperatures

The highest temperature in Argentina today is 24.51° C (76.12° F) in Ciudadela. The lowest is in Tierra del Fuego, where the temperature of the water is 6.11° C (43° F).

Why measure sea surface temperatures (SST) in Puerto San Julian?

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

  • "Puerto San Julian Sea Temperature". SeaTemperatures.net. Accessed on November 10, 2025. http://seatemperatures.net/south-america/argentina/puerto-san-julian/.

  • "Puerto San Julian Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/south-america/argentina/puerto-san-julian/. Accessed 10 November, 2025

  • Puerto San Julian Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/south-america/argentina/puerto-san-julian/.