The position of the Sun in relation to the Earth affects how long days and nights are. When the North Pole points toward the sun, the sun's rays hit the northern half of the world more directly. That means it is warmer and we have summer. But, when the North Pole is pointed toward the sun, the South Pole is pointed away. So the Earth south of the equator gets less warmth from the sun. It is winter there. In winter, the days are shorter and the nights longer. That means there is more time for the sun to warm us during long summer days. Short winter days have long, cold nights.
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