Summer
Summer Summer, which comes after spring and before autumn, is the hottest of the four temperate seasons. The summer solstice is marked by the earliest sunrise and latest sunset, the lengthiest daylight hours, and the shortest nighttime hours. Day lengths gradually get shorter as the season goes on following the solstice. The start of summer varies depending on the environment, customs, and culture. In the Southern Hemisphere, it is winter when it is summer in the Northern Hemisphere..