Even though the distance doesn't determine our seasons, the 3% difference is not without consequence. The varying speed of Earth's orbit—it moves faster when it is closer to the sun (at perihelion) and slower when it is farther away (at aphelion)—does have a small but measurable impact on the length of our seasons.
Q: When is Earth closest to the Sun? A: Earth is closest to the Sun around early January, specifically on January 4th (or thereabouts), which marks the perihelion event.
Fun fact: In the 17th century, Tycho Brahe’s data allowed Kepler to deduce the elliptical orbit, but the precise timing of perihelion wasn’t nailed down until the late 1800s.
occurs in early July (July 4–6 typically). Distance: ~152.1 million km (94.5 million miles). At aphelion, the Sun appears slightly smaller, and Earth moves slower (~29.3 km/s).
At this time, the Earth is approximately away from the Sun. when is earth closest to the sun
the sun during perihelion, which makes their summers slightly more intense than those in the north. Explore Scientific Key Effects of Perihelion
How the change perihelion over thousands of years The exact dates and times of perihelion for upcoming years
For our friends in Australia, South Africa, and South America, early January is the middle of summer. This aligns perfectly with their intuition. When the Southern Hemisphere is tilted toward the sun (December to February), they receive direct sunlight and experience summer. The fact that Earth is also at perihelion (closest to the sun) during their summer amplifies their summers slightly.
Let’s dive deep into the science, the dates, the myths, and why this cosmic near-miss doesn’t give us a global heatwave. Even though the distance doesn't determine our seasons,
A: No, it shifts slightly due to the Gregorian calendar and gravitational perturbations from other planets. It generally occurs between January 2 and January 5.
If you’re like most people, you probably assume Earth is closest to the Sun during the warm, balmy days of summer. After all, it makes intuitive sense: closer to the fire means more heat. But that intuition is wrong—and the truth reveals a fascinating quirk of our planet’s orbit.
Understanding Earth's Orbit: Why It’s Not a Perfect Circle
the Sun right as we reach our closest point, making their summers slightly more intense than those in the North. Moving at "Warp Speed" A: Earth is closest to the Sun around
For 2026, perihelion occurs on at roughly 13:00 UTC.
When Is Earth Closest to the Sun? Understanding Perihelion Every year, Earth reaches a specific point in its orbit where it sits at its absolute closest distance to the Sun. This astronomical event is called .
It does, but the effect is subtle and often misunderstood.
Earth is tilted at an angle of relative to its orbital plane.