10 Halloween Superstitions to Look Out for on All Hallows’ Eve

Updated July 29, 2021
girl with Halloween pumpkin in front of her head

Black cats, jack-o'-lanterns, bats, and ghosts are common Halloween symbols, but do you know the superstitions surrounding these spooky creatures? Learning about the stories behind the stories might make you want to tread a bit more carefully at the sight of a spider, or if you happen to find yourself at a crossroads on Halloween night.

Avoid Black Cats

Luckily, this superstition has been written off as nonsense by most people, but the idea of black cats being bad luck, or bad omens, originates in the Dark Ages. This superstition brings together a bit of religious zealotry, some sexism, and some ageism thrown in for good measure.

Black Cat On Road

Many older women during the Dark Ages (and for a while afterward) were rumored to be witches. Maybe they lived alone. Maybe they lived in the country, or the forest, or on the outskirts of town. It wasn't uncommon to have a cat (whether you were an older woman or not…) because they're helpful in keeping pests away.

And where do the black cats come in? The thought was that black cats, specifically, were witches' familiars, gifted to them by the devil himself.

Or, if you really were suspicious of that older lady just trying to live her life, you might go with the idea that Satan sometimes turned himself into a black cat to visit with witches, who could also turn themselves into black cats if they chose, and cause all manner of chaos.

It's this association with witches that make black cats a mainstay of Halloween decorations and superstitions.

Carve a Jack-o'-Lantern to Guide Lost Spirits

Who doesn't love a jack-o'-lantern with a big carved smile, lit up by a flickering candle? While this is a much-beloved Halloween tradition now, its origin is not nearly as cheery.


The story comes from an Irish myth. There was once a farmer named Jack. Farmer Jack got drunk and decided it might be fun to play a trick on the devil. (He must have been really drunk.)

As one might guess, things didn't work out so well for Jack. To punish him for his attempted trickery, Jack was turned away from both the gates of heaven and the gates of hell when he died, forced to wander endlessly in the darkness.

To help light his way, Jack made a lantern from a turnip, carving holes in it, and then placing a burning piece of coal that the devil had thrown at him inside to illuminate it.

He used the lantern to try to find his way out of the darkness. So the story goes that if you carve a lighted jack-o'-lantern and place it outside, you'll help any other lost souls find their way.

The scary carved faces in pumpkins could also ward off evil. When the Irish began emigrating to North America, they brought this tradition with them, but since pumpkins were more plentiful than turnips, they began using them to guide all of those lost souls instead.

Seeing Bats = Death, Probably

Another story of witches and their familiars! Supposedly, bats were also witches' companions, gifted to them by the devil when they promised their souls to him.

flying bat

As you can expect, bats were definitely not a good omen, especially when seen on Halloween when the veil between the world of the living and the world of the dead is at its thinnest.

If someone notices a bat circling their house three times, it means someone in the house will soon die.

And, if a bat flew into your house? Your house is very possibly haunted, and the ghosts let the bat in.

Pay Attention to Spiders

There are two ways this superstition can go. One way is a bit ominous, and the other is more wholesome, but might be considered creepy, depending on how you feel about ghosts.

pay attention to spiders

First up, the ominous superstition: if a spider falls into a candle and is consumed by the flame, witches are nearby. Spiders were thought to be companions of witches. (One might wonder how witches had room for so many companions…)

Now, for the more wholesome thought: the veil between life and death is thinner on Halloween, and seeing a spider during that time could very well mean that the spirit of a loved one is watching over you.

Throw Stones and Hope You Find Them Again

This superstition comes via the Welsh, who had an interesting Halloween tradition: they'd make a bonfire, and each member of the household would find a white rock that they'd then mark in some way to identify it as theirs.

Man Tossing Stone On Field

Once the fire was roaring, they'd all toss their rocks in, and they'd continue their Halloween celebration.

The next day, though, they'd return to the site of the bonfire and sift through the ashes in search of their stones. And if someone didn't find their stone, they likely wouldn't live to see another Halloween.

Give Treats or You Risk Angering Ghosts

During Halloween (or Samhain) the thinning of the veil between our world and the spirit world means that, sometimes, spirits might cross over and mingle with the living. And according to superstition, they could disguise themselves as something like a beggar or a person in need and knock on people's doors asking for money or food.

Woman offering Halloween candies

Turning them away and refusing was… a bad idea. A ticked-off spirit might haunt or curse you. So now, people give treats on Halloween to everyone who comes to their door, just in case a spirit or two are among them.

Better safe than sorry!

Dress Up to Fool Spirits

Somewhat related to the idea of spirits disguising themselves and mingling with the living, this superstition has to do with why people dress up in costumes.

children trick-or-treating

Basically, the idea is that, since spirits may be walking among the living, and because they may be up to mischief (including taking your soul), it's a good idea to disguise yourself so they think you're one of them.

This tradition was also brought to North America by Irish immigrants in the early 1900s, and by the 1950s, dressing up for Halloween was popular pretty much everywhere.

Be Careful at Crossroads on Halloween

According to a Welsh superstition, on Halloween night, there's a spirit waiting at every crossroad, and while most will just let you pass by, others might be up to mischief.

Crossroads on Halloween

Another crossroads superstition for Halloween is that if you stand at the center of the crossroads, the spirits there will whisper your future.

Blue Flames as Ghost Detectors

Ghosts and spirits abound on Halloween, and one superstition claims that all you need if you want to know if there are ghosts near you is a simple candle.

Blue Flames as Ghost Detectors

Light the wick, and keep an eye on it. If the flame turns blue, you very likely are in the company of a spirit or two.

If You Want to Know Your Future, Ask on Halloween

The ancient Celts believed that October was when the spirit and physical worlds drew close, and one's fate might be learned by fortunetelling. Farmers wanted to know about crops and weather, and women wanted to know about marriage and children. Because Samhain, and later Halloween, took place at harvest time, fruit and nuts were used as part of the ritual. Apples were especially popular since they had been associated with gods and goddesses for thousands of years.

Green apple sliced in half
  • Apples were cut open horizontally, and the seeds counted: this told you how many children you would have.
  • The seeker could carefully peel the apple and throw the peel over her shoulder. When it hit the floor, it would form into the initial of a future love.
  • A courting couple would throw nuts into the fireplace on Halloween: if the nuts exploded and popped apart, they would not marry soon.

Halloween Superstitions

Most Halloween superstitions are centered around the idea of the veil between the worlds of the dead and the living being thin on that day, when ghosts and devils may walk among the living, and omens are everywhere. Whether you're the superstitious type or not, knowing these long-held superstitions may just make Halloween even more exciting.

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10 Halloween Superstitions to Look Out for on All Hallows’ Eve