As the month progresses, the Northern Hemisphere tilts further away from the sun. You will notice shorter days, cooler evening temperatures, and the beginning of the "foliage season" as deciduous trees prepare for winter dormancy. The Southern Hemisphere: Arrival of Spring
Many species begin their seasonal journeys, with birds heading south in the north, and marine life shifting to warmer breeding grounds in the south. what seasons are in september
Many tropical regions are in the midst of a transition. As the month progresses, the Northern Hemisphere tilts
To answer "what season is in September," one must look at geography. Many tropical regions are in the midst of a transition
In the Northern Hemisphere (North America, Europe, most of Asia, and the northern half of Africa), September is universally a month.
This is the full moon closest to the September equinox, historically providing extra light for farmers harvesting summer crops.