There are only two:
Australia and Antarctica.
South America is the closest continent to being located entirely in the Southern Hemisphere, however, the equator cuts through the top of the continent.
Two continents are located entirely in the Southern Hemisphere: Antarctica & Australia. An additional three continents are located partially in the Southern Hemisphere: Africa, Asia, & South America.
Antarctica and Australia are the continents that are entirely located within the Southern Hemisphere.
Australia and Antarctica are located entirely within the Southern Hemisphere.
North America and Europe are the only two continents not in the Southern Hemisphere. Asia is only slightly in the Southern Hemisphere.
The two southern continents located entirely in the Southern Hemisphere are Australia and Antarctica.
Australia and Antarctica are the only continents located entirely within the Southern Hemisphere.
Australia and Antarctica are the two continents that are entirely located within the Southern Hemisphere.
Australia and Antarctica are the two continents located entirely within the southern hemisphere.
Australia and Antarctica are the two continents located entirely within the Southern Hemisphere.
Antarctica and Australia are the two continents that are entirely located in the Southern Hemisphere.
Australia and Antarctica are the two continents that are entirely located in the Southern Hemisphere.
Antarctica and Australia are the two continents located completely in the Southern Hemisphere.