It is important to remember that seasons are reversed south of the equator. If you are in Australia, South Africa, or Argentina:
Even in the Northern Hemisphere, October can feel like a winter month, especially in the latter part of the month. As the days get shorter and the temperatures drop, the weather can become quite chilly, especially in the mornings and evenings. In many parts of North America and Europe, October is a time of transition, when the warmth of summer is just a memory and the cold of winter is starting to set in.