Karnak Temple records autumn equinox alignment on 23 September
Published on 09/27/2026 at 08:04 | Editorial responsibility: Rafael MĂĽller, Editor-in-Chief AD HOC NEWS
Karnak Temple in Luxor recorded its autumn equinox solar alignment on 23 September 2026, when midday sunlight reached the sacred chambers of the Ptah and Ramesses III temples. The complex, part of Egypt’s ancient Thebes, is also known for its extensive religious architecture and astronomical associations.
Karnak Temple marked the autumn equinox on 23 September
The alignment took place at noon on 23 September 2026, the date identified by Egypt’s meteorological authority as the first day of autumn. A report by Ahram Online’s equinox report said that sunlight illuminated the sacred chambers of the Ptah and Ramesses III temples in the Luxor complex.
The event concerned the movement of the midday sun through the temple’s architectural openings and axes. Ayman Abu Zeid, head of the Egyptian Association for Tourism and Archaeological Development, told Ahram Online that the light entering the chambers reflected the use of temples as precise astronomical timekeepers.
The alignment was a retrospective event for visitors following coverage published on 22 September 2026. It was distinct from the better-known winter solstice occurrence on 21 December, when sunrise reaches the inner sanctuary along the complex’s main east-west axis.
The Ptah and Ramesses III chambers reveal a seasonal link
The two chambers involved are within smaller shrines in the wider complex, alongside the main Amun-Re temple, the Great Hypostyle Hall and the Sacred Lake. The relationship between the light and these enclosed spaces gives the September event a specific architectural setting rather than making it a general equinox observation in Luxor.
A study presented at Luxor University’s Third International Conference of the Faculty of Archaeology examined the movement of sunlight in the chambers from the 21 June summer solstice to the 23 September autumn equinox. Ahram Online reported that the research treated the Ramesses III chambers as a kind of calendar clock and connected the light pattern with the seasons of the ancient Egyptian year.
The wider historical setting is confirmed by the UNESCO description of Ancient Thebes. The World Heritage property includes the temples and palaces of Karnak and Luxor on the Nile’s east bank, together with the necropolises on the west bank.
UNESCO identifies the Great Hypostyle Hall as a major part of the Theban complex. It was begun by Seti I and completed by Ramses II, measures 102 metres in width and 53 metres in depth, and contains 134 columns. Those figures describe the scale surrounding the smaller chambers linked to the September alignment.
What the September alignment means for the temple visit
The 23 September 2026 alignment has already passed, so travellers arriving after that date will not be visiting the event itself. The chambers and the surrounding temple remains remain the relevant physical context, while the separate winter solstice alignment is associated with 21 December.
Visiting Karnak Temple: what travellers from Western Europe should know
- The autumn equinox alignment occurred on 23 September 2026 at midday in the Ptah and Ramesses III temple chambers.
- The alignment was a solar event within the archaeological complex, not a separate festival or evening performance.
- Karnak Temple stands on the east bank of the Nile in Luxor, Egypt, within the Ancient Thebes World Heritage property.
- The site contains large open spaces, monumental halls, enclosed chambers, columns and uneven archaeological surfaces, so a visit involves walking across historic terrain.
- Arabic is Egypt’s official language and the national currency is the Egyptian pound.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
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Frequently asked questions about Karnak Temple
When did the autumn equinox alignment take place at Karnak Temple?
The alignment took place at midday on 23 September 2026 in the sacred chambers of the Ptah and Ramesses III temples.
What is Karnak Temple?
It is a large ancient Egyptian religious complex in Luxor containing the main Amun-Re temple, the Great Hypostyle Hall, the Sacred Lake and smaller shrines.
Where is Karnak Temple and how do you get there?
Karnak Temple is on the east bank of the Nile in Luxor, Egypt. It forms part of the Ancient Thebes World Heritage property.
