when it is autumn in the northern hemisphere, it is spring in the southern hemisphere. when it is autumn in the southern hemisphere, it is spring in the northern hemisphere. on the equator, autumn is very much like spring, with little difference in temperature or in weather. autumn is a time when most animals are looking for food so they can store up for winter, because they soon will be going into hibernation. the weather gets colder and more windy. in autumn the hours of daylight and the hours of night are the same. in autumn the weather changes all the time. the weather turns cooler and often windy and rainy.