Rare Solar Alignment Over the Kaaba Coincides with Eid Al-Adha in Once-in-33-Years Event
A near-perfect solar zenith directly above the Holy Kaaba coincided with the second day of Eid Al-Adha, offering a natural Qibla verification method not seen during Hajj season for 33 years.
A Sky Without Shadows
On Thursday, May 28, 2026, at exactly 12:18 PM local time, the skies above Makkah delivered a spectacle that bridges science and faith. The sun positioned itself almost perfectly directly over the Holy Kaaba, reaching an altitude of 89.94 degrees — a mere 0.06 degrees shy of absolute perfection.
For that single minute, the Kaaba and every vertical object in Makkah cast no shadow. The sun’s rays struck the ground perpendicularly, creating what astronomers call a “shadowless moment” — a phenomenon that has been used for centuries to verify the direction of the Qibla from anywhere on Earth.
The Science Behind the Phenomenon
Majed Abu Zahra, director of the Jeddah Astronomy Society, explained that this alignment occurs twice annually due to the sun’s apparent movement between the Tropic of Cancer and the Tropic of Capricorn. Because Makkah sits at approximately 21.4 degrees North latitude, the sun passes directly overhead once during its northward journey in late May and again during its southward return in mid-July.
Thursday’s event marked the true astronomical peak for this cycle — the most precise moment of the entire year for shadow-based Qibla verification. The previous day, Wednesday May 27, also produced a close alignment at 89.89 degrees, but Thursday’s reading was the closest to perfect.
For Muslims worldwide, this meant a simple method to confirm their prayer direction: at precisely 12:18 PM Makkah time, the shadow of any vertical object pointed exactly away from the Kaaba.
A Once-in-a-Generation Coincidence
What made this year’s event truly extraordinary was its timing. The solar alignment landed on the second day of Eid Al-Adha, smack in the middle of the Hajj pilgrimage season. Because the Islamic calendar shifts backward by roughly 10 to 11 days each year against the solar calendar, this kind of intersection — where the zenith aligns with the peak Hajj and Eid days — occurs only once every 33 years.
The last time this happened was in 1993. The next occurrence won’t come until 2059.
Medieval Roots, Modern Relevance
The significance of this event extends beyond its spiritual resonance. Medieval Islamic scholars pioneered the “shadowless” technique to calibrate the alignment of mosques across continents, and historians note it as one of the early practical applications of astronomy in the Islamic world.
Today, the Jeddah Astronomy Society uses the event as an educational opportunity, publishing detailed infographics that illustrate planetary rotation and celestial mechanics in real time. It’s a reminder that the same astronomical principles guiding ancient scholars still hold true — and can be observed with nothing more than a vertical stick and a flat surface.
Not a Heat Driver
Saudi Arabia’s National Center for Meteorology was quick to address public speculation linking the solar alignment to extreme heat. While the overhead sun delivers intense direct radiation during the zenith, daily temperatures are governed by a broader set of climate factors including humidity, air mass movements, and wind speeds. The alignment itself does not trigger heatwaves.
Still, for the millions of pilgrims in Makkah for Hajj and the 1.8 billion Muslims worldwide who turn toward the Kaaba each day in prayer, the event was a powerful convergence of the cosmic and the sacred — a reminder that the heavens and faith have always moved together.