October 31 Zodiac: Sign, Traits, Compatibility and More

Written by August Croft
Updated: July 14, 2023
© iStock.com/architectnine
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As an October 31 zodiac sign, you likely know just how mysterious you can be. With Halloween accompanying you throughout your life, it’s not a secret that people born on this day have a darkness to them that you have to get to know in order to fully appreciate. Scorpios born on October 31st, unite! This article is all about you.

We’ll take an in-depth look at this frequently misunderstood water sign, particularly Scorpios born on Halloween. From personality to ambitions to weaknesses, there are plenty of things to learn about a person’s essence through astrology. Let’s get started and address all of the associations you should know about if you’re a Scorpio born on October 31st!

October 31 Zodiac Sign: Scorpio

People born on October 31st fall under the zodiac sign of Scorpio.

The eighth sign of the zodiac, Scorpios are typically born from October 23rd to November 21st, depending on the calendar year. A fixed water sign, Scorpios are a deep and stable sign with many interesting associations. For one, this zodiac sign has two planets attributed to it, depending on who you talk to. Both Mars and Pluto rule the scorpion, both of which have great bearing on their personality.

All water signs are emotionally intuitive and sensitive. Pisces are mutable, representing our changing rivers and streams. Cancers are cardinal, representing the way in which water carves out a path. When compared to these other water signs, Scorpio can be conceptualized as the deepest depths of the sea, something we have only yet to dive into.

This is one of the many reasons why Scorpios are a highly misunderstood zodiac sign. There is a psychic energy to Scorpios that not only allows them to perceive our depths. It also allows them the ability to calculate, predict, and plan for anything. A Scorpio is interested in harnessing the depths of all of us, no matter how dark we can be.

Decans of Scorpio

October 31 zodiac
If you are an October 31 zodiac, you likely feel a strong sense of authority and passion in your life.


On the astrological wheel, all zodiac signs take up 30 degrees. This represents the time the sun spends in each sign. However, these 30-degree increments are further broken up into 10-degree increments based on when you were born. This further classification gives you a secondary planet that rules your sun sign in tandem with your primary planetary rulers. These increments are known as decans, and they are the same element as your sun sign.

If that doesn’t quite make sense, here is how the Scorpio decans break down:

  • Scorpio decan, from October 23rd to roughly November 1st. Ruled by Pluto and Mars and the most hyper-present Scorpio personality.
  • Pisces decan, from November 2nd to roughly November 11th. Ruled by Neptune.
  • Cancer decan, from November 12th to roughly November 21st. Ruled by the Moon.

If you’re a Scorpio with a Halloween birthday, you belong to the first decan of Scorpio. This means that you’re in the Scorpio decan and represent the most Scorpio-centric personality compared to Scorpios born later in the month. But what does this mean for your personality and life in general? To understand this, we must first dissect what planets are influencing you.

October 31 Zodiac: Ruling Planets

October 31 zodiac
Not only does Mars lend each and every Scorpio a bold combativeness to get what they want, but it also helps this sign know how to plan their attack.


Not every zodiac sign gets two ruling planets, but Scorpio is one of them. This watery intellectual was once ruled by the planet Mars but is now ruled by the planet Pluto in modern astrology. However, many people associate both planets with the scorpion, much like how Aquarians are ruled by both Saturn and Uranus.

Mars is the planet of action, aggression, and instinct. Pluto is the planet of the subconscious, rebirth, and transformation. With the god of war and the god of the underworld heavily influencing the average Scorpio, it’s no wonder that they have so much insight, depth, and dark connotations associated with their zodiac sign!

In modern astrology, Pluto lends Scorpios a keen and almost unexplainable interest in the dark, the taboo, and the mysterious. They may be inexplicably interested in death itself, or at the very least the concept of the unknown. This is likely especially true of a Scorpio born on October 31st– your birthday is on one of the darkest and spookiest days of the year, after all!

However, Mars still has a huge bearing on the modern-day Scorpio. The fixed nature of Scorpios means they are committed and unlikely to change their ways, especially when paired with their independent minds. But Mars gives Scorpios the power to enact their goals without fear. Not only does Mars lend each and every Scorpio a bold combativeness to get what they want, but it also helps this sign know how to plan their attack.

Given that an October 31 zodiac belongs to the first decan of Scorpio, there are no other planets influencing them. However, this makes the influence of Mars and Pluto all the greater. People born during this particular decan likely know how to reach the absolute depths of any situation. They also have the power and strategic knowledge to transform these situations into anything they want.

October 31: Numerology and Other Associations

October 31 zodiac
Just like scorpions, an October 31st Scorpio will lie in wait, stinging only when they are out of options.

©Vova Shevchuk/Shutterstock.com

It’s no secret that Scorpios are associated with the scorpion, and there are plenty of valid reasons for this comparison. Scorpios are known for their ability to sting, to strike their foe when the moment is right. Given the influence of the planet Mars and its connection to the god of war, Scorpios know when to expertly and perfectly enact their aggressions so that they are the victor in any situation.

This is only one of the reasons why Scorpios are feared or misunderstood. Just like scorpions, an October 31st Scorpio will lie in wait, stinging only when they are out of options. Remaining on a Scorpio’s good side is easier than you may think, but the moment they view a slight or a betrayal in any way, you will get stung, whether the scorpion wants to sting or not.

In terms of numerology, an October 31st birthday takes a bit of analysis. If you add the digits in 31, you get the number 4. This is a number largely associated with power, determination, and stability. These are all things that you can naturally associate with Scorpio. 4 is also half of 8, which represents Scorpio as the eighth sign on the astrological wheel!

If you are an October 31 zodiac, you likely feel a strong sense of authority and passion in your life. The number 4 combined with the influence of Mars likely makes you a fearsome leader and someone capable of accomplishing anything they set their minds to. Because Scorpios are one of the most accomplished signs in the zodiac– especially if they’ve been lying in wait for the right opportunities and are ready to strike! 

October 31 Zodiac: Personality Traits

October 31 zodiac
A Scorpio sees everything, which can be incredibly daunting as well as attractive, and this is especially present in the personality of someone born on October 31st!

©Tanya Antusenok/Shutterstock.com

Scorpios are inherently obsessed with depth. From the darknesses found in all of us to the unknown worlds out there yet to be discovered, this is a sign that wants to know everything. There is almost a psychic nature to all Scorpios, especially one born on October 31st, when the veil between the living and the dead is arguably at its thinnest. Scorpios have Pluto to thank for their odd interests and ability to see people so deeply.

It is this sight and perception that make Scorpios simultaneously the best companions and the worst enemies. If you are on the good side of this watery being, it is likely that they will know you better than you know yourself. They are incredibly loyal, stable, and unafraid to stand up for anyone or anything that they love. Their passion is addictive, and their insight will help even the most jaded or stubborn of people.

However, the dark side of a Scorpio is why many people fear them. When a Scorpio is hurt or slighted in any way, even in a way that you yourself may not perceive, their grudges run deep. The intensity of Mars truly shines in an angry Scorpio, though it’s unlikely that you will ever know or see these deep, dark undercurrents. Their anger is orchestrated, and this control is where a Scorpio finds their power.

When first meeting a Scorpio, you’re likely to notice their boldness, depth, and sensuality right away. This is a sign that enjoys being mysterious and intense, which can manifest in both quirky and harmful ways. A Scorpio sees everything, which can be incredibly daunting as well as attractive, and this is especially present in the personality of someone born on October 31st!

Strengths and Weaknesses of October 31 Scorpios

As previously mentioned, the almost psychic abilities of Scorpios are both good and bad. This is a sign that is capable of transforming their own selves as well as those around them. However, this transformative nature is rooted in the planet Pluto, a planet of destruction. At their best, Scorpios can help people see their deepest and truest selves in order to better themselves and help them feel reborn. At their worst, especially with their Mars influence, a Scorpio may destroy everything around them just to feel in control.

Here are some other potential strengths and weaknesses of Scorpios, born on Halloween or otherwise:

Deep, both emotionally and intellectuallySecretive
Bold and unafraidHolds grudges and resentments easily
Stable and secureControlling

October 31 Zodiac: Career and Passions

Scorpios are undeniably passionate, particularly when it comes to their careers. Given their fixed natures, the average Scorpio will prefer one career path over many different fields, like mutable signs. However, a Scorpio will absolutely follow their chosen career path to the very end, until they feel as if they have accomplished all that they can. The ambition and powerful energy of Mars doesn’t let them rest until this happens.

Power is a huge motivator for Scorpios. This isn’t to say that Scorpios want to be CEOs or entrepreneurial magnates. Far from it, in fact. Given that Scorpios enjoy plumbing the depths for information that they can use if and when they so choose, having a career behind the scenes is valuable for this sign. This isn’t a fire sign that needs the spotlight. Scorpios know what true power is, and that often means orchestrating everything seamlessly, in the shadows, with no one the wiser.

However, the watery and emotional influence placed on Scorpios may make them seek a career that allows them to connect with people on a deep and intimate level. This is a sign that works best in a one-on-one setting, especially if it involves people and all of their shadows. Their insight can be incredibly valuable in a therapeutic setting, and their empathetic natures are often unmatched.

Some potential careers that may appeal to Scorpios born on October 31st include:

  • Psychologists or psychiatrists across all specializations
  • Private investigator
  • Author
  • Forensic analyst
  • Spiritual coach or leader
  • Advisor or counselor in many fields
  • Occult-based career opportunities

October 31 Zodiac in Relationships

October 31 zodiac
An October 31st Scorpio will have a good sense of authority and power in a relationship.

© paseven/Shutterstock.com

It’s no surprise that a Scorpio in a romantic relationship is intimidating, to say the least. An October 31 zodiac likely begins a first date with questions and plenty of them. This is a sign that questions, and often, both at the beginning and throughout a relationship. They want to know everything about you, and they will find everything out, whether you are comfortable with that or not. A Scorpio demands that you keep no secrets, even though they likely have plenty of their own!

One of the unspoken truths about Scorpios in romantic relationships is that they are deeply sensual. This is a sign that does a lot of processing, healing, and connecting through physical and sensual acts– a taboo in and of itself! An October 31st Scorpio will have a good sense of authority and power in a relationship, so much so that it is unlikely for them to pursue anyone that doesn’t also want to experience deep, sensual connections.

Steadfast and incredibly loyal, Scorpios will go to the ends of the earth for you if they have chosen you as a partner. While romantic flings are inevitable with a sign this passionate, Scorpios much prefer the stability and clarity that a long-term partnership brings them. However, just don’t keep secrets; not only will a Scorpio find out, but it won’t be pretty when they do!

Compatibility for October 31 Zodiacs

There are a number of compatible matches for an October 31 zodiac sign. It’s important to know that Scorpios value intellect and depth, however it might manifest. They want someone just as curious as they are; they want to share their deep, beautiful ocean with someone who will truly appreciate them.

As a water sign, Scorpios may match best with other water signs who can truly comprehend their emotional depths. However, earth signs also pair well with Scorpios. The down-to-earth nature of Virgos, Tauruses, and Capricorns attracts Scorpios, especially ones with complementary birth chart placements. 

No matter what sign you are, know that it will take time for a Scorpio to open up to you. Given that they know just how dark and dangerous people can be to one another, trust is a very complicated subject for this sign. However, once their trust is earned, they hold nothing back. Hopefully you will enjoy the waves and undercurrents of this water sign!

October 31 zodiac
There are a number of compatible matches for an October 31 zodiac sign.


Matches for October 31 Zodiac

  • Virgo. A mutable earth sign, Virgos are highly intellectual and understanding. Their practical natures may be easy for a Scorpio to take advantage of, but a Virgo’s mutability makes them unlikely to mind this so long as the Scorpio takes good care of them. Virgos may also be able to help Scorpio see the whole of a situation rather than only what has wronged them.
  • Libra. Next to Scorpio on the astrological wheel, Libras are a cardinal air sign with an analytical nature similar to Scorpios. While this may not be a relationship that lasts forever given Libra’s independent side, Libras understand and connect with a Scorpio’s depth. However, an independent October 31 zodiac may rebel against a Libra’s cardinal nature. 
  • Taurus. Opposite Scorpio on the astrological wheel, Tauruses are a fixed earth sign. Equally devoted to sensuality, this is a match that works well in many ways. However, both Scorpios and Tauruses are fixed signs prone to bouts of stubbornness, which may spell trouble down the line.
  • Pisces. The ultimate nurturers of the zodiac, Pisces are mutable water signs. Their watery nature connects instantly with Scorpios, and their mutability makes them happy to go with the flow of their Scorpio partner. Plus, Pisces are the final sign of the zodiac, which means they carry with them the knowledge of all signs that come before them. They understand a Scorpio’s guarded nature better than most.

Historical Figures and Celebrities born on October 31st

  • Marcus Rashford
  • John Candy
  • Rob Schneider
  • Michael Landon
  • Peter Jackson
  • Piper Perabo
  • Michael Collins
  • Vanilla Ice
  • Zaha Hadid
  • Willow Smith
  • John Keats
  • Dermot Mulroney

Important Events That Occurred on October 31st

  • On approximately this day in 2011, the world’s population officially reached 7 billion, prompting the United Nations Population Fund to declare it the Day of Seven Billion.
  • Two years earlier, all 217 people aboard EgyptAir Flight 990 tragically perished when the plane crashed off the Eastern coast of the US.
  • In 1984, Indian Prime Minister Indira Gandhi was assassinated by two of her bodyguards, leading to riots and several thousand Sikh deaths in India and New Delhi.
  • In 1978, the People’s Democratic Republic of Yemen (South Yemen) passed its constitution, which would eventually lead to unification with North Yemen in 1990 to create modern-day Yemen.
  • Pope John Paul II also acknowledged the errors committed by the Catholic Church in regard to Galileo Galilei in the 17th century on this day in 1992.

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About the Author

I am a non-binary freelance writer working full-time in Oregon. Graduating Southern Oregon University with a BFA in Theatre and a specialization in creative writing, I have an invested interest in a variety of topics, particularly Pacific Northwest history. When I'm not writing personally or professionally, you can find me camping along the Oregon coast with my high school sweetheart and Chihuahua mix, or in my home kitchen, perfecting recipes in a gleaming cast iron skillet.

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