Earth's Perihelion and the Year's Largest Sun on January 3, 2026
Earth reaches perihelion, its closest point to the sun, on January 3, 2026, but this event has minimal impact on seasons, which are primarily driven by Earth's axial tilt. Perihelion slightly increases solar energy and affects Earth's orbital speed, influencing season length and climate trends over long timescales, but does not cause significant weather changes.