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 Macapa in Brazil, with a temperature of 29.7° C (85.46° F).
  • The lowest is in Cape Horn, Chile, where the temperature of the water is 6.95° C (44.51° F).