While the calendar provides hard dates, nature often has its own schedule. In many parts of North America and Europe, the "feeling" of autumn is dictated by the environment rather than the date.
In the Southern Hemisphere (countries like Australia and Brazil), the seasons are flipped. Their autumn begins at the March equinox, typically March 20 or 21, and ends in June. The Meteorological Definition autumn is in what month
Regardless of which month you officially start counting, autumn remains a season of harvest, cooling temperatures, and preparation for the winter months ahead. While the calendar provides hard dates, nature often
By starting the season on September 1, scientists can more easily compare weather data from year to year without the "sliding" dates of the equinox. Cultural and Regional Variations Their autumn begins at the March equinox, typically
There are two primary ways to define the start and end dates of autumn: Why Meteorological Fall Starts Before Astronomical Fall
Because the Earth's tilt affects hemispheres differently, autumn occurs at opposite times of the year: September, October, and November. Southern Hemisphere: March, April, and May. By Calculation Method
Autumn is generally defined as a three-month transition between summer and winter, but the specific months it encompasses depend on your location and the method of calculation used. By Hemisphere