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 Costa de Oro in Uruguay, with a temperature of 31.57° C (88.83° F).
  • The lowest is in Stanley, Falkland Islands, where the temperature of the water is 4.5° C (40.1° F).