It's because we are north of the equator and they are south of the equator. It has to do with the position of the sun and earth.
spring,summer,fall,winter
Summer happens in South America when the Earth's 23.5 degree tilt gives the southern hemisphere more direct sunlight (and therefore warmth) than the northern hemisphere. So if South America is experiencing summer, North America is experiencing winter.
when it summer in North America its winter in south america and when its winter in north america its summer in south america.
winter in America in the Northern Hemisphere will be summer in Australia in the southern Hemisphere
summer. they would have the same seasons at the same time because they are both in the northern hemisphere. (this is true for most of asia, because the equator [which splits the Earth into north and south] passes through Indonesia, a southeastern Asian country, however it is generally warm by the equator year-round, so it would feel like summer in Indonesia too)
It is Winter in Zimbabwe when North America has its summer.
when it summer in north america its winter in south america and when its winter in north america its summer in south america.
If it is summer in South America then it is winter in north america
If it is summer in South America then it is winter in north america
If it is summer in South America then it is winter in north america
If it is summer in South America then it is winter in north america
it's winter in north america
When it is Fall (or Autumn) in the northern hemisphere, it is Spring in the southern hemisphere.
Winter
summer
If it is summer in South America then it is winter in north america
summer