South America Sea Temperatures

We track the current and average sea water temperatures for 15 countries in South America. Search the list below to find the country you're looking for.

  • The place with the highest sea temperature in South America today is Asuncion in Paraguay, with a temperature of 29.88° C (85.78° F).
  • The lowest is in Isla de los Estados, Argentina, where the temperature of the water is 8.47° C (47.24° F).