The Southern Hemisphere includes most of South America, one-third of Africa, all of Antarctica, a small sliver of Asia (parts of Indonesia) and all of Australia/Oceania.
Four oceans (South Atlantic, Indian, South Pacific, and Southern) and most of Oceania are in the Southern Hemisphere.
The Southern Hemisphere has almost 90% water and only 10% land. So most of the world population lives in Northern Hemisphere.
It is also significantly less polluted than the Northern Hemisphere because of lower overall population densities (10-12 percent of the human population), lower levels of industrialisation, and smaller land masses.
The majority of the hemisphere’s population speak one of just five languages Portuguese, English, Spanish, French, or Indonesian.
When its is summer in the Northern Hemisphere, its winter-time in Southern Hemisphere.
Summer is December to March and winter is June to September. September 22 or 23 is the vernal equinox and March 20 or 21 is the autumnal equinox.
Climates in the Southern Hemisphere tend to be slightly milder overall than those in the Northern Hemisphere at similar latitudes except in the Antarctic which is colder than the Arctic.
Cyclones and tropical storms spin clockwise in the Southern Hemisphere (as opposed to anticlockwise in the Northern Hemisphere) due to the Coriolis effect.
Interestingly, the Moon seems to be upside down in the Southern Hemisphere.
The earth’s tilt combined with clearer skies, makes for excellent viewing of the night sky from the Southern Hemisphere with brighter and more numerous stars. Southern African Large Telescope (SALT) is the largest optical telescope in the southern hemisphere. It is located close to the town of Sutherland in the semi-desert region of the Karoo, South Africa.