Spring Equinox Serpent of Kukulkán
In real life Fri, Mar 19 – Tue, Mar 23, 2027 · From about 4:00 PM
Late-afternoon sun throws triangles of shadow down the pyramid's north stairway so that a serpent seems to slide toward the stone head at its base.
Around the spring equinox, late-afternoon sun on El Castillo (the Pyramid of Kukulkán) at Chichén Itzá casts triangles of shadow down the north stairway. Together they look like a serpent sliding down toward the carved serpent head at the base, a sign of Maya astronomical and architectural knowledge.
The effect is visible for a few days between about March 19 and 23 and is strongest on the equinox itself, from about 4pm. Chichén Itzá is Mexico's most popular place to see it, so expect thousands of people.
🎟 Cost: About 692 MXN (roughly US$40) for foreign adults in 2026 per visitor guides; children under 13 free. Check before you go
🕒 When: Fri, Mar 19 – Tue, Mar 23, 2027, From about 4:00 PM
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ℹ️ The effect shows between Mar 19 and 23 and is strongest on the equinox itself.
What to expect
- A shadow serpent that appears on El Castillo's north stairway from about 4pm
- The effect is visible for several days around the equinox, March 19–23
- Large crowds gathered on the plaza
- A similar effect around the autumn equinox in late September
Tips for going
- The site is open 8am–5pm, with last entry around 4pm, so get in well before then.
- Bring sun protection, a hat and water; you'll wait outside for hours.
- Come on one of the days either side of the equinox if you want thinner crowds.
Questions people ask
What time does the serpent appear?
From about 4pm in the late afternoon.
Does the ticket cost more on the equinox?
The sources we checked don't list a separate equinox price. Check before you go.
Which days can I see it?
Roughly March 19–23, strongest on the equinox itself.
About Chichén Itzá
Chichén Itzá was a great Maya city of the Yucatán. El Castillo, the Temple of Kukulcán, rises from its great plaza, and on the equinoxes a shadow serpent slides down its steps.
Getting there: Chichén Itzá is a day trip from Mérida, Valladolid or Cancún. Arrive at opening time to beat the heat and the crowds.
More about Chichén Itzá and its 3D version →
Also in Chichén Itzá
In real lifeSources: www.chichenitza.com · chichenitza-guide.com. Organizers change plans, so confirm before you go.
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