Winter, south America like Australia is in the Southern Hemisphere and therefore shares the same seasons.
Australia is south of the equator, so seasons are reversed from those in North America. Summer in America is winter in Australia. Spring in Australia is autumn in America.
When it is Fall (or Autumn) in the northern hemisphere, it is Spring in the southern hemisphere.
winter
If it is summer in South America then it is winter in north america
Winter
summer
It would be winter in both of these areas, as they lay south of the Equator.
The flip line of seasons is the equator. So Winter in South America is during Summer in North America. June - September = Winter 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
summer
Winter