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The Day the Sun Danced: What Tens of Thousands Saw at Fátima

On October 13, 1917, a crowd in rural Portugal said the sun spun, changed color and plunged toward them. Here's what the record shows, what's disputed and what nobody has fully explained.

It had rained all morning. By midday on October 13, 1917, the Cova da Iria, a hollow pasture outside the Portuguese village of Fátima, was a field of mud and umbrellas. Somewhere between 50,000 and 70,000 people stood in it, by most estimates. They had come because three shepherd children, ten-year-old Lúcia Santos and her younger cousins Francisco and Jacinta Marto, had said months earlier that a Lady would perform a miracle on this exact day, “so that all may believe.”

Then, according to many who were there, the clouds pulled apart. The sun came out pale enough to look at. It spun. It threw colored light across faces and clothes. And then it seemed to drop toward the crowd before climbing back into place. People screamed, knelt and prayed. Some said their soaked clothes were suddenly dry.

Other people standing in the same field saw nothing at all.

That split is the whole story. More than a century later, the Miracle of the Sun is one of the best documented “impossible” events of the modern era, and it is still argued over by priests, physicists, skeptics and, lately, UFO researchers. We’re not going to tell you what happened. We’re going to lay out what the record says and let you weigh it.

The timeline

  • Spring 1916: The three children later say they saw an angel while tending sheep. (Wikipedia summary of the background)
  • May 13, 1917: The first reported appearance of a Lady the children call the Lady of the Rosary. They say she asked them to return on the 13th of each month.
  • July 13, 1917: According to Lúcia’s later memoir, the Lady promises a miracle in October.
  • August 1917: A local administrator briefly takes the children into custody. Portugal’s young republic was officially secular and hostile to the Church, and officials suspected the visions were political.
  • October 13, 1917: The crowd gathers. The solar event reportedly lasts about ten minutes.
  • November 1917: The bishop opens a canonical investigation.
  • October 13, 1930: Bishop José da Silva declares the apparitions “worthy of belief.”
  • 1950: Pope Pius XII later says he saw the same solar miracle four times from the Vatican gardens. His handwritten notes surfaced in 2008, as reported by Zenit.
  • May 13, 2017: Pope Francis canonizes Francisco and Jacinta at Fátima on the centenary.

What we know

It was predicted, in public, in advance. This is what sets Fátima apart from most sightings. Nobody stumbled onto it. Newspapers had covered the children’s claims, the date was known, and people walked for days to be there. Whatever you think happened, the crowd was there because of a specific promise about a specific day.

The witnesses weren’t only believers. The best known account came from Avelino de Almeida, a reporter for O Século, a Lisbon paper that was secular and often anticlerical. Reporters for O Dia and the Catholic paper Ordem also wrote it up. Father John De Marchi, an Italian priest who spent 1943 to 1950 in Fátima interviewing people, wrote that the crowd held “believers and non-believers, pious old ladies and scoffing young men,” and that “none to our knowledge has directly denied the visible prodigy of the sun.” (quoted here)

Some reports came from miles away. Rev. Joaquim Lourenço described seeing it as a boy in Alburitel, about 11 miles from the field: the sun looked “like a ball of snow, revolving on itself” before it “seemed to come down in a zig-zag, menacing the earth.” The poet Afonso Lopes Vieira said he saw something remarkable from his own veranda, and said he hadn’t even remembered the prediction.

The descriptions share a core. Across many accounts the same elements show up: a pale or silver disc you could look at, spinning, colored light washing over the crowd, and a frightening plunge toward the earth.

What’s disputed

What people actually saw. The accounts are not uniform. Some saw the dance. Some saw only colors. A few said they saw the Virgin Mary. A number of people saw nothing unusual. The researcher Kevin McClure, writing in 1983, concluded that “the accounts of the miracle, of the ‘dance of the sun’, are simply not consistent.” Even Avelino de Almeida reportedly told a friend years later that he “did not see anything special,” though his newspaper report described the crowd’s reaction in detail. (Those details are collected in the Wikipedia article’s notes, which draw on Stanley Jaki’s God and the Sun at Fátima.)

The famous photo. You’ve probably seen a black-and-white picture of a bright sun breaking through dark clouds labeled “Fátima, 1917.” It isn’t. It was first published by L’Osservatore Romano in 1951 and was later found to show a different solar event in a different Portuguese town years afterward. Brian Dunning of Skeptoid walks through it here. Real photographs from that day, taken by O Século’s Judah Ruah, show the crowd looking up. They don’t show the sun doing anything.

Whether it was expected. One witness, Joaquim Gregório Tavares, said he arrived after talking with “cool-headed persons who were anticipating some changes of colour in the Sun.” In Alburitel, a villager said people were smoking bits of glass over candles that morning so they could look at the sun safely. Skeptics see that as priming. Believers answer that a prediction can’t be faulted for being believed.

The dry clothes. De Marchi wrote that drying the rain-soaked field in minutes would have taken an enormous amount of energy. Skeptical writer Benjamin Radford has argued that we don’t know how hard or how long it rained, and that the photographs don’t show a flooded field.

The strongest explanations

Here are the main theories, each in its best form.

1. A genuine miracle. The traditional Catholic view, made official in 1930, is that God did exactly what the children said he would, on the day they said, in front of a hostile press. Defenders point to the advance prediction, the mixed crowd, distant witnesses and the abrupt start and stop. De Marchi called it “the most obvious and colossal miracle of history.”

2. A miracle that worked through nature. Father Stanley Jaki was a Benedictine priest with a doctorate in physics. He argued that God used a real atmospheric event: a lens of air full of ice crystals that refracted sunlight and was pushed down and back up by a sudden temperature inversion. To Jaki, the timing was the miracle. A rare weather event happening on the predicted day was itself the sign. (Catholic Stand summary of Jaki)

3. The eye playing tricks. Physicist Auguste Meessen argued that staring at or near the sun produces afterimages, apparent motion and color shifts as retinal cells bleach. He noted that similar “sun miracles” have been reported at other apparition sites, including Heroldsbach, Germany, in 1949. Modern eye doctors have documented the damage, too. A 1988 British Journal of Ophthalmology paper describes solar retinopathy following religious rituals, meaning eye injuries in pilgrims who stared at the sun hoping to see it move. One more detail cuts in the skeptics’ favor. Domingos Pinto Coelho, the Catholic lawyer who wrote up Fátima for Ordem, published an article days later saying he had seen “the same succession of colors, the same rotary movement” in the half-clouded Lisbon sky.

4. Weather and optics. Others proposed thin cloud turning the sun into a silver disc, high-altitude dust (Steuart Campbell suggested stratospheric dust, and Paul Simons suggested Saharan dust), or sundogs, which are bright false suns made by ice crystals. Investigator Joe Nickell combined several of these with crowd expectation.

5. A real object that wasn’t the sun. This is the newest theory, and it’s the one with the most momentum online. Philippe Dalleur, a philosopher at the Pontifical University of the Holy Cross in Rome, studied the shadows in Ruah’s crowd photographs. He argues they point to a second light source at the wrong elevation to be the sun, and that distant witnesses placed their “silver sun” toward Fátima rather than where the sun actually stood. (Scientia et Fides, 2021) Since the 1970s, UFO researchers such as Jacques Vallée have filed Fátima alongside aerial-phenomena cases, and the idea still circulates. American Alchemy devoted an October 2024 episode to UFOs and religion with religious-studies scholar Diana Pasulka, and Fátima comes up regularly in that world.

Notice what each theory has trouble with. The miracle view has to account for the people who saw nothing and for “sun dances” at other sites. The eye-strain view has to explain why tens of thousands described a similar sequence at the same moment, including people who weren’t staring. Weather theories have to explain why no observatory recorded anything. And the UFO view has to explain why an object would arrive on schedule for a religious prophecy.

What remains unexplained

Set the arguments aside and a few hard facts stay put:

  • Three children named a date months ahead, and something on that date affected a very large crowd.
  • Hostile and neutral observers reported it in print within days.
  • No single natural explanation has convinced everyone who has looked closely.
  • And no physical record of the sun doing anything unusual exists, then or now.

Reading it with an open Bible

So how does a biblically minded reader sit with something like this? We’ll raise questions rather than settle them.

Scripture isn’t shy about God doing things in the sky. The sun stands still for Joshua (Joshua 10:12–14). Jesus says that before his return “the sun will be darkened” (Matthew 24:29). So the idea of a sign in the heavens isn’t foreign to the Bible.

In the same chapter, though, Jesus warns that “false christs and false prophets will arise and perform great signs and wonders, so as to lead astray, if possible, even the elect” (Matthew 24:24). John tells us to “test the spirits to see whether they are from God” (1 John 4:1). And when people demanded a sign from heaven, Jesus pointed them to “the sign of Jonah,” meaning his own death and resurrection (Matthew 16:1–4).

That leaves some honest questions:

  • If something truly supernatural happened, does a sign carry its own meaning, or is it judged by the message attached to it? Catholics and Protestants answer that differently, since the Fátima messages center on Mary.
  • Does the possibility of a natural explanation make it less of a sign? Jaki didn’t think so. Is he right?
  • How should we treat sincere testimony from thousands of people who weren’t lying but may not have agreed on what they saw?
  • And what does it say about us that a dancing sun pulls us in faster than an empty tomb?

We don’t have a tidy answer, and we’re not going to pretend we do. Some of it holds up. Some of it doesn’t. All of it is worth talking about. Tell us what you think.

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