If the southern hemisphere is receiving indirect sunlight, the northern hemisphere is receiving direct sunlight. The Earth is tilted on its axis, which causes the northern and southern hemispheres to receive different amounts and types of sunlight depending on the season. During the summer months in the northern hemisphere, the Sun is directly overhead, which results in more intense and direct sunlight. In the southern hemisphere, the Sun is lower in the sky, which results in indirect sunlight that is less intense and more diffuse. During the winter months, the situation is reversed, with the northern hemisphere receiving indirect sunlight and the southern hemisphere receiving direct sunlight.