December 21 Zodiac: Sign, Personality Traits, Compatibility and More

If you’re a December 21 zodiac sign, it’s important to know where the sun was at the precise moment you were born. This is because December 21st is largely considered to be a cusp birthday in astrology, bordering the zodiac signs of Sagittarius and Capricorn. For the most part, someone born on December 21st will fall under the sign of Sagittarius, a zodiac sign that we will take an in-depth look at today. 

Are you interested in learning more about your birthday so that you can learn more about yourself? By turning to astrology for personal insight, you may surprise yourself when it comes to what you learn. In this article, we will give a detailed astrological profile for the zodiac sign of Sagittarius as well as take a more intricate look at a Sagittarius born on December 21st. How might this Sagittarius birthday be different? Let’s find out now! 

December 21 Zodiac Sign: Sagittarius

What are some of the most important astrological concepts to understand? Every zodiac sign has a specific placement on the astrological wheel, an element assigned to them, as well as a modality that corresponds to the seasonal timing of their birthdays. The signs of the zodiac also have planetary rulers, something we will address about Sagittarius in just a moment. For starters, let’s address the importance of Sagittarius as the 9th sign of the zodiac out of 12. 

Following intense and driven Scorpio on the astrological wheel, Sagittarians learned an important lesson from this fixed water sign. They learned that life isn’t worth living without intensity and passion, without inner purpose and drive. This is reflected in the connection that Sagittarius has with the 9th house in astrology. Known as the house of philosophy and faith, Sagittarians live life in constant pursuit of higher truths and expansive knowledge. 

Modality and element assignments are very important for understanding both the communication styles and default ways of being for every zodiac sign. Sagittarians are mutable fire signs. Mutable signs occur as one season becomes another, just as Sagittarian birthdays happen as fall becomes winter. This makes the average Sagittarius flexible, adaptable, and somewhat fickle. Mutable signs are best at collaborating and adapting to the needs of others. 

Finally, as a fire sign, Sagittarians are ambitious, driven, and energetic people. There is an extroversion and a charisma in every fire sign, as they enjoy being straightforward in how they approach others. Fire signs are motivated by action-oriented things and tend to reflect this hands-on approach in everything they do. Sagittarians are no exception to this, bold and driven to action rather than long ruminations or emotional processing. 

December 21 Zodiac: Ruling Planets

Given that astrology is all about our stars and planets, it only makes sense that every zodiac sign has a planetary ruler. This ruler tends to correspond to the astrological house assignment that your zodiac sign has, forming a tight-knit bond between these concepts. For Sagittarius, this fire sign is ruled by Jupiter, a planet known for its expansive, philosophical, and wise associations. But what else is associated with Jupiter and, therefore, Sagittarius?

Jupiter is a special planet in that it is the largest in our solar system. The size of Jupiter often leads to a generous interpretation of this planet. Connected to optimism and hope, Jupiter is widely regarded as a lucky planet, a planet large enough to assist everyone at some point in their lifetime. However, Jupiter is also deeply intellectual and philosophical, associated with inner growth and your capacity for personal expansion. 

This planet is also connected to long-distance travel, traveling abroad, and higher education opportunities or faith-based learning. What does all of this mean for the Sagittarius personality? Because of Jupiter’s dedication to personal growth, Sagittarians are forever in pursuit of their own self-discovery. University studies and long-distance travel opportunities are some of the best places for a Sagittarius to discover themselves. 

Plus, Sagittarians gain something else from Jupiter that sets them apart from other zodiac signs they adopt this planet’s optimism and sense of possibility. Jupiter, with its large size and philosophic ideals, believes that anything is possible. Sagittarians believe this as well, often hopeful and optimistic in situations where others would feel hopeless. Opportunities often feel endless for a Sagittarius, thanks to their connection to optimistic Jupiter! 

December 21 Zodiac: Strengths, Weaknesses, and Personality of  Sagittarius

Given that Sagittarians believe in the infinite possibility of the world around them, this zodiac sign is obsessed with personal freedom. While both a strength and a weakness, Sagittarians often earn a bad reputation when it comes to their changeable, flighty behaviors. This zodiac sign isn’t afraid to change course in an instant should they grow bored or perceive a better opportunity elsewhere. 

While commitment may not be a Sagittarius’s strong suit, the adaptability of this zodiac sign is truly a strength. Sagittarians are deeply independent people, as all fire signs are. They value flexibility in life, opportunities to do what they want when they want to. While their changeable natures tend to be influenced by a desire for answers or new experiences, Sagittarians also have a weakness in that they can be contrary for no apparent reason! 

There is indeed a rebel in every Sagittarius, something that bristles anytime anyone tells them what to do. Demanding that a Sagittarius do something for you is often the fastest way for them to cut all ties with you. They value equally independent people who can accomplish great things on their own, as Sagittarians do daily. In fact, the drive, ambition, and vision that every Sagittarius has for their life is impressive and as unique as they are. 

With a can-do attitude and a straightforward way of communicating, Sagittarians often inspire others, both in personal and professional relationships. However, Sagittarians can occasionally be too honest and blunt when in conversation, something that certainly gets them into hot water from time to time!

What Makes a December 21 Zodiac Sign Special?

Did you know that numerology may lend you more specific insight when it comes to learning about your own birthday? The number three is an important number for a December 21st birthday, as both the digits in this month and the individual day add up to three. Numerology attributes characteristics of creativity, change, and knowledge to the number three, while astrology associates this number with the third sign of the zodiac, Gemini. The third astrological house is also relevant, a house representing communication. 

A Sagittarius born on a day so connected to the number three may have a creativity about them that is greater compared to other Sagittarius birthdays. The number three is at the core of many foundational concepts in life, lending this number a foundational wisdom. Additionally, Geminis are very creative, curious, and intellectual air signs, connected to the number three thanks to their placement on the astrological wheel. 

The third house is all about how we express our thoughts and communicate to others, both intellectually and sociably. A Sagittarius so connected to the number three and therefore the third house may have an ease of communicating that allows them to connect to a variety of people. Given the fact that Sagittarians often speak in a blunt, off-putting manner, this particular Sagittarius birthday may be able to express themselves in a less forward way. 

As a fellow mutable sign, Geminis enjoy adapting, changing, and collaborating in many of the same ways that Sagittarians do. A Sagittarius connected to the third sign of the zodiac may be even more flexible and prone to change compared to other Sagittarius birthdays. This is certainly saying a lot, and a December 21st Sagittarius may need to guard against their instinct to change just for the sake of change! 

Career Paths for December 21 Zodiac Signs

Given that Sagittarians prefer to march to the beat of their own drums, this fire sign may choose a career path that is currently indescribable. Sagittarians always pave their own way, especially when it comes to their professional life and potential success. When it comes to careers that may interest a Sagittarius, some of these possible options may include careers involving travel, aviation, athleticism, and high-risk situations such as search and rescue or paramedic fields. 

Connected to Jupiter and its themes of higher education, Sagittarians often pursue college or advanced study opportunities. This is especially true for study abroad programs, as Sagittarians love the idea of expanding amongst people they have never met before. The notion of education may mean that a Sagittarius pursues a teaching or mentoring career, something they will be naturally gifted in. 

A December 21st Sagittarius will have a clear, inspiring way of communicating that lends well to coaching, counseling, and even college-level professor opportunities. Given that Sagittarians are naturally rebellious and advocate readily for the independence of others, this particular Sagittarius birthday will be well suited to a career in politics, law, or advocacy. Starting a revolution also isn’t outside of the question for this Sagittarius birthday! 

On a smaller scale, someone born on December 21st may make a wonderful social media influencer or artist of some type. Remember that Sagittarians value independence, especially in others. Becoming an influencer or a mentor may not sit well with a Sagittarius, as they want everyone to discover their own unique independence for themselves! 

Relationships and Love for December 21 Zodiac Signs

Tradition and conventional relationship expectations tend to bother the average Sagittarius. This isn’t to say that Sagittarians don’t engage in long-term relationships. But this independent fire sign doesn’t enjoy boundaries, unspoken expectations, and people who don’t understand personal freedom within a relationship. Sagittarians will need to partner with someone who values independence and individuality, even in a long-term relationship. 

A Sagittarius born on December 21st will be an effective and excellent communicator in a relationship. This is often one of the biggest hurdles for any relationship, astrological compatibility aside. Communicating and clear expectations will come naturally to this Sagittarius birthday. This may help someone born on December 21st form lasting, healthy partnerships for the long haul. 

No matter how long a Sagittarius match lasts, this passionate zodiac sign always gives as much love as they have. Even if they move on to someone else, Sagittarians truly value every single romantic partner they meet. This freedom-loving zodiac sign isn’t prone to holding grudges or resentment, as Sagittarians understand that everyone has individual needs and wants. While it may feel as if a Sagittarius doesn’t value their relationships because they often move on quickly, this couldn’t be further from the truth.

Loving a Sagittarius means embracing the relationship, fully and completely, even if it doesn’t last forever. A Sagittarius relationship is full of new experiences, travel, and deep connection. This zodiac sign knows how to make their loved ones feel special, even if they get distracted by new potential relationships often! 

Matches and Compatibility for December 21 Zodiac Signs

No matter what zodiac sign you are, knowing your elemental placement can help determine a great deal of compatibility, at least from an astrological perspective. Remember that romantic partnerships shouldn’t be formed solely on astrology, even if it can lend you some insight. For Sagittarians, fire signs communicate instinctively with other fire signs. Additionally, air signs will ignite and enhance fire, so that both people grow in the relationship. 

But what signs match best with someone born on December 21st? Here are some potentially compatible signs for this Sagittarius:

• Gemini. With a shared connection numerologically, Sagittarians born on December 21st may be especially attracted to Geminis. Both Geminis and Sagittarians are mutable, lending exciting, adaptable energy to this relationship. Geminis are also independent and creative people who aren’t afraid to be on their own. Air meets fire in this confident match, a match that is built upon friendship and personal freedom. 
• Aries. In many ways, an Aries-Sagittarius match feels like a mentor-mentee situation. The curiosity and innocence of the average Aries appeals to the wise and approachable Sagittarius personality. Likewise, Aries will enjoy how energetic the average Sagittarius is. This is a match that thrives on new experiences and mutual understanding of the other’s need for independence. 

Historical Figures and Celebrities Born on December 21st

• Thomas Couture (painter)
• Jean Henri Fabre (naturalist)
• Frank Patrick (athlete)
• Walter Hagen (athlete)
• Anthony Powell (writer)
• Josh Gibson (athlete)
• Werner von Trapp (singer)
• Paul Winchell (performer)
• John G. Avildsen (director)
• Jane Fonda (actor)
• Donald F. Munson (politician)
• Frank Zappa (musician)
• Samuel L. Jackson (actor)
• Thierry Mugler (designer)
• Jeffrey Katzenberg (producer)
• Chris Evert (athlete)
• Lee Roy Parnell (singer)
• Ray Romano (actor)
• Kiefer Sutherland (actor)
• Brett Scallions (singer)
• Karrie Webb (athlete)
• Steven Yeun (actor)
• Mark Ingram Jr. (athlete)
• Quinta Brunson (actor)
• Gianluca Buccellati (musician)

Important Events That Occurred on December 21st

• In 1866, the Fetterman Massacre occurred
• In 1898, the element radium was officially discovered
• In 1937, “Snow White and the Seven Dwarfs” officially premiered as Walt Disney’s first feature-length animation
• In 1952, San Francisco’s Broadway Tunnel opened
• In 1968, Apollo 8 launched into space and returned successfully six days later
• In 1970, US President Richard Nixon met Elvis Presley, taking a historic photo to commemorate the event
• In 1988, the tragic Lockerbie bombing occurred

The photo featured at the top of this post is © Algernon77/Shutterstock.com

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