For geographic purposes, the Earth is divided into a northern and southern hemisphere by an imaginary ring called the equator. Whichever hemisphere is more directly facing the Sun during the course of the Earth's orbit will receive more of the Sun's energy for more of the day. The Earth is tilted on its axis, due to which some places get direct vertical rays of Sun and are hotter like equator while some places have slanting sun rays and are cooler.

The Northern Hemisphere receives more sunlight than the Southern Hemisphere because of the tilt of the Earth's axis. The Earth's axis is tilted about 23.5 degrees relative to its orbit around the Sun. This tilt causes the Northern Hemisphere to be oriented more toward the Sun during the summer months, which results in longer days and more direct sunlight. Conversely, during the winter months, the Southern Hemisphere is oriented more toward the Sun, resulting in longer days and more direct sunlight for that region.

The amount of solar radiation received by a particular region also depends on the angle at which the Sun's rays strike the Earth's surface. When the Sun is directly overhead, the incoming solar radiation is more intense and concentrated, resulting in warmer temperatures. When the Sun's rays strike the Earth's surface at an angle, the radiation is more dispersed, resulting in cooler temperatures.

Because of these factors, the hemisphere that is tilted toward the Sun receives more direct sunlight and therefore experiences warmer temperatures. During the summer months in the Northern Hemisphere, the Sun's rays are more direct and concentrated, leading to warmer temperatures in that region. Conversely, during the summer months in the Southern Hemisphere, the Sun's rays are more dispersed and less intense, resulting in cooler temperatures.

This is why the Earth's 23.5 degree tilt is all important in changing our seasons. Near June 21st, the summer solstice, the Earth is tilted such that the Sun is positioned directly over the Tropic of Cancer at 23.5 degrees north latitude. This situates the northern hemisphere in a more direct path of the Sun's energy. Whichever hemisphere is tilted toward the sun receives more direct rays of sunlight. The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun. For geographic purposes, the Earth is divided into a northern and southern hemisphere by an imaginary ring called the equator. Whichever hemisphere is more directly facing the Sun during the course of the Earth's orbit will receive more of the Sun's energy for more of the day. The northern hemisphere is more directly exposed to the sun's rays during June and July. The southern hemisphere receives less direct sunlight during these months, resulting in winter.The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun. The combination of more direct rays of sunlight and more hours of daylight causes the hemisphere tilted toward the sun to receive more solar radiation and to have warmer temperatures. Around June, the northern hemisphere, during day time, gets a greater amount of direct sunlight than the southern hemisphere. This keeps the northern hemisphere warmer and the regions here experience summer season.