Contrary to common misconception, Earth is not closest to the Sun during the Northern Hemisphere’s summer (June). Instead, Earth reaches its closest point to the Sun—known as perihelion —every year in early January , typically between January 2nd and January 5th.
Earth’s orbit around the Sun is not a perfect circle but an ellipse (slightly oval-shaped). The Sun is not at the exact center but at one of the two foci. Therefore, Earth’s distance from the Sun changes throughout the year. earth closest point sun month
The seasons are caused by Earth’s axial tilt (≈23.5°), not by distance. When the Northern Hemisphere is tilted away from the Sun (winter), Earth happens to be at its closest orbital point to the Sun. This is a coincidence of timing. Contrary to common misconception, Earth is not closest