December 21 Zodiac Sign: Sagittarius
Born on December 21? Your zodiac sign is Sagittarius ♐︎ (or Capricorn in some years), the explorer always aiming further. December 21 is one of the last Sagittarius birthdays of the year, with the Sun around 29° Sagittarius.
December 21 is a cusp date. The Sun moves from Sagittarius into Capricorn on or around this day, so depending on your birth year and time you may be Capricorn. Add your year below for the exact answer.
Your exact birthday
December 21 personality
As a Sagittarius, you are optimistic, adventurous and philosophical. The explorer always aiming further is a good way to sum you up. Being born in the third decan of Sagittarius colours that further: sun energy adds warmth, generosity and natural leadership.
Your birth day number, 21 (2 + 1 = 3), is ruled by Jupiter in numerology: “The Teacher”, with themes of wisdom, expression, optimism. Knowledgeable, disciplined, cheerful and inspiring. Put together, a December 21 Sagittarius combines fire-sign instincts with the teacher’s drive.
Strengths and challenges
Strengths
- Optimistic
- Adventurous
- Honest
- Philosophical
- Funny
- Knowledgeable
Watch out for
- Restless
- Blunt
- Commitment-shy
- Bossiness
December 21 love and compatibility
Sagittarius loves freely and with a lot of laughter. You need a partner who is also your travel buddy and best friend, who shares big ideas and never tries to fence you in. Your birth number 3 adds a twist: generous and principled; looks for a partner who shares values.
See all Sagittarius compatibility matches. In Indian matchmaking, compatibility comes from both Moon signs and nakshatras. Try kundli matching for a proper guna score.
Career and money for December 21 birthdays
You need meaning and movement. Roles with travel, learning and big-picture thinking keep you motivated, while micromanagement and routine make you restless fast. Your Mulank 3 points the same way: teaching, law, finance, advisory, writing, spirituality are classic fits.
Travel and tourism Teaching and higher education Publishing Law Spirituality International business
December 21 in Vedic astrology
In the sidereal zodiac used for Kundli, the Sun on December 21 is usually in Sagittarius (Dhanu), passing through Mula nakshatra, whose deity is Nirriti and symbol bunch of roots.
Indian astrology reads your personality mainly from your Moon sign and Lagna, which change every couple of days and every two hours. Add your birth time above for your Moon sign, or get everything at once with your free Kundli. You can also read today’s Sagittarius rashifal.
Lucky things for December 21
Numbers and gems here follow your birth day. For a gemstone you plan to wear, check your chart first in your free Kundli, or see gemstones for emotions.
Frequently asked questions
What zodiac sign is December 21?
December 21 falls under Sagittarius (22 Nov – 21 Dec). It is a cusp date: in some years the Sun had already entered Capricorn, so check your birth year with the tool on this page. Sagittarius is a fire sign ruled by Jupiter.
Is December 21 a cusp birthday?
Yes. The Sun changes sign on or around December 21, so people born that day can be Sagittarius or Capricorn depending on the year, time and place of birth. This is the Cusp of Revolution.
What is the Vedic rashi for December 21?
In Vedic (sidereal) astrology the Sun on December 21 is usually in Sagittarius (Dhanu), in Mula nakshatra. Indian astrology usually goes by the Moon sign, which needs your birth time: make your free Kundli to find it.
What is the birthstone for December 21?
The modern birthstone for December is turquoise, linked to protection and good fortune. In Vedic astrology, gemstones are chosen from your birth chart instead, for example the gem of your Lagna lord.
What is the lucky number for someone born on December 21?
Born on day 21, your Mulank (psychic number) is 3, ruled by Jupiter. Your lucky day is Thursday and your lucky colours are yellow, purple. Add your birth year above to get your life path number.
More December birthdays
FireEarthAirWaterCusp: sign depends on year