If Earth Is Farthest From the Sun This Week, Why Is It So Hot?

Earth reaches aphelion on Monday, July 6, 2026, the point in its orbit when the planet sits farthest from the sun. At 1:30 p.m. EDT, the gap between Earth and the sun’s center stretches to 152,087,774 kilometers (94,502,962 miles), per Time and Date’s ephemeris for 2026. The date lands in the middle of Northern Hemisphere summer, the season when cities across the United States, Europe, and Asia run at their hottest readings of the year.

The disconnect between textbook intuition and the actual thermometer has fueled a stubborn myth every July. The fix is short, and it has nothing to do with greenhouse gases: axial tilt runs the weather.

Earth Reaches Its Farthest Point from the Sun

Earth’s path around the sun is not a circle. It is a slight ellipse, so the distance between Earth and the sun’s center shifts through the year. Aphelion marks the farthest point; perihelion, on the opposite side, marks the closest.

Aphelion 2026 arrives at precisely 1:30 p.m. EDT (17:30 UTC) on July 6, per Time and Date’s perihelion and aphelion dates for 2026 and 2027. At that instant Earth sits 152,087,774 kilometers (94,502,962 miles) from the sun’s center, the most distant it will be this year. Six months from now Earth will sit about 3 million miles (5 million kilometers) closer on the opposite side of the orbit, per EarthSky.

The sun itself appears about 3.6% larger at perihelion than at aphelion, per EarthSky’s aphelion explainer, a difference too small to spot with the eye. The narrow band between the two extremes is part of why distance alone cannot explain summer heat.

The 23.5-Degree Tilt That Actually Drives the Seasons

The mechanism behind summer is much larger than any annual 3% shift in distance. Earth’s rotation axis leans at about 23.5 degrees relative to the plane of its orbit around the sun, and that lean stays nearly fixed in space as the planet swings through both ends of its ellipse. The U.S. Naval Observatory’s seasons-and-orbit page calls this lean the dominant force behind the seasons, per its long-term interaction between tilt and orbital shape.

Two consequences follow. First, the Northern and Southern Hemispheres take turns leaning toward the sun. Second, the hemisphere leaning in gets more hours of daylight and a more direct angle of sunlight, both of which add up to more heat. The tilt, day length, and sun angle together swing mid-latitude solar energy by roughly 50% across the year, per National Geographic.

Aphelion lands about two weeks after the June solstice, per Time and Date, so the Northern Hemisphere has been tilted toward the sun since the longest day of the year. The small distance shift is layered on top of a season already running on a separate mechanism.

Earth’s 23.5-degree axial tilt is the primary driver of our weather and temperature shifts.

That is Seth McGowan, president of the Adirondack Sky Center in upstate New York, in National Geographic’s piece on how tilt, day length, and sun angle drive the seasons. Tilt runs the season. Distance shifts the reading by a few percent. The larger mechanism keeps its hold all summer.

Why the Southern Hemisphere Sees Winter Right Now

For anyone south of the equator, July 6 reads very differently. Australia, New Zealand, South Africa, and Argentina are deep in winter this week, and aphelion won’t soften the chill. Earth’s axis is tilted away from the sun in the Southern Hemisphere in July, the reverse of its Northern lean, so sunlight arrives at a shallower angle and days run short. The seasons there run on the same tilt, with the hemispheres in opposite phase.

In early January 2027, the swap reverses. Earth reaches perihelion, about 3 million miles closer to the sun than at this week’s aphelion, per EarthSky’s aphelion explainer. The closer point adds roughly 7% more solar energy to the Southern Hemisphere’s summer compared to the Northern Hemisphere’s summer, per National Geographic.

What the 3% Distance Shift Actually Does

Distance from the sun has an effect, only a small one. Earth’s tilt has a much larger effect on the seasons.

Earth receives about 7% more solar energy at perihelion than at aphelion, per National Geographic. The sun’s apparent angular size in the sky also shifts by about 3.6% between perihelion and aphelion, per EarthSky. Distance adjusts Earth’s energy intake within a narrow band; the tilt drives the dominant share of the seasonal swing.

Distance does shift orbital speed. Earth travels about 2,000 mph faster at perihelion than at aphelion, a consequence of Kepler’s second law that National Geographic attributes to astronomer Seth McGowan. Northern Hemisphere summer, which contains aphelion, runs a few days longer than Northern Hemisphere winter, which contains perihelion, per EarthSky. Both facts run alongside the tilt without overriding it.

What the Rest of July Holds in the Sky

Aphelion arrives today, and the rest of July keeps the night sky busy with one of the year’s best stargazing stretches and three active meteor showers.

A long moonless stretch opens the month with exceptional dark-sky conditions, ideal for catching the Milky Way’s core from the Northern Hemisphere. The full Buck Moon later in the month briefly floods the sky with light for a few nights, dimming the faintest meteor streaks while the brighter showers hold up.

Three meteor showers run through July, two peaking near the month’s end and the Perseids stretching all the way into August’s peak. Venus lights the evening sky all month and Mars rises before dawn, per the Planetary Society, with the Southern Delta Aquariids producing up to 20 meteors per hour at their dark-sky peak. The week’s calendar of events is below.

Both the dark moonless stretch in early July and the bright moon later offer something different for skywatchers, and the Perseids’ clean August peak caps the run.

• July 7-16: Last-quarter moon keeps evening skies dark for stargazing and Milky Way viewing, the year’s quietest run.
• July 17: Perseid meteor shower begins its long run, peaking under moonless skies in mid-August.
• July 28-29: Southern Delta Aquariids peak, with up to 20 meteors per hour in dark, moonless conditions.
• July 29: Full Buck Moon peaks at 10:36 a.m. ET; moonlight washes out the faintest meteors for a few nights on either side.
• July 30-31: Alpha Capricornids peak, producing fewer meteors but bright fireballs visible from both hemispheres.
• August 12: Total solar eclipse crosses Greenland, Iceland, and northern Spain, with a partial eclipse visible across parts of North America and Europe.

Frequently Asked Questions

What is aphelion?

Aphelion is the point in Earth’s orbit where the planet sits farthest from the sun. The word comes from the Greek apo (away) and helios (sun). Aphelion 2026 arrives at 1:30 p.m. EDT on Monday, July 6, at 152,087,774 kilometers from the sun’s center.

How far is Earth from the sun at aphelion?

Earth sits 152,087,774 kilometers (94,502,962 miles) from the sun’s center at the 2026 aphelion, per Time and Date. At perihelion in early January 2027, the gap closes to about 147 million kilometers, a 3% swing either way.

Why is it so hot in the Northern Hemisphere if Earth is farthest from the sun?

Earth’s 23.5-degree axial tilt is the dominant driver of seasons, not the 3% range in distance between aphelion and perihelion. In July the Northern Hemisphere is tilted toward the sun, which gives it longer days and a more direct angle of sunlight. That tilt-driven energy swing is roughly seven times larger than the aphelion-to-perihelion gap, per National Geographic.

When is the next perihelion?

Perihelion 2027 lands in early January 2027, with the precise moment reported as 9:33 p.m. EST on January 2, 2027 by Farmers’ Almanac. At perihelion, Earth is about 3 million miles (5 million kilometers) closer to the sun than at aphelion.

Does aphelion mean the sun looks smaller?

Yes, but only slightly. EarthSky’s composite analysis puts the sun’s apparent angular size about 3.6% larger at perihelion than at aphelion, a difference too small to spot with the naked eye.