Beginning around September 22 and ending on March 21.
Whatever is tilted toward the sun has summer. So the southern hemisphere will have winter.
The Southern Hemisphere is tilted toward the sun.
Summer
The Southern Hemisphere is tilted toward the sun during the winter solstice.
Away.
Fall or Winter.
It is at that time, when the southern hemisphere is tilted toward the sun, that the northern hemisphere is tilted away from the sun.
When the southern hemisphere is tilted toward the sun, it experiences summer because more sunlight is focused on that region. This results in longer days and warmer temperatures. Conversely, when the southern hemisphere is tilted away from the sun, it experiences winter due to receiving less sunlight.
There is only one axis and it is always tilted. The part of the axis we call the 'north' pole is tilted toward the sun in the northern summer, and the 'south' pole is tilted toward the sun during the southern summer. That said, the earth itself is a little closer to the sun during the southern summer/northern winter.
Summer in the southern hemisphere -- when the South Pole is tilted toward the the Sun, it's winter in the northern hemisphere -- including the state of Florida.
When the North Pole is tilted toward the Sun, it is summer in the Northern Hemisphere. This tilt allows for longer daylight hours and more direct sunlight, resulting in warmer temperatures. Conversely, the Southern Hemisphere experiences winter during this time, as it is tilted away from the Sun. The opposite occurs when the South Pole is tilted toward the Sun, leading to summer in the Southern Hemisphere.
The south end of Earth's axis is tilted toward the sun in December. This tilt causes the Southern Hemisphere to experience summer during this time.