Born on August 21

August 21 Birthday Traits: An Open Heart With a Door of Its Own

August 21 often prefers a life that can be read clearly. You may speak from the heart, show your enthusiasms, and dislike the games that make ordinary feeling unnecessarily obscure. Transparency is powerful, but it needs a chosen boundary; access should deepen with trust rather than arrive automatically. The date brings together Leo, Birthday Number 21/3, the Five of Clubs, and The World.

Zodiac LeoElement FireModality FixedBirthday Number 21/3Birth Card 5♣

August 21 at a glance

August 21 zodiac, birth card, Tarot, and numerology.

August 21 birthday facts
Zodiac signLeo
Leo datesJuly 22 to August 23, with the yearly ingress varying by time zone
Sun degreeUsually near 29 degrees Leo, before the Virgo ingress
Reference Sabian degreeLeo 30: An unsealed letter
DecanThird decan of Leo
ElementFire
ModalityFixed
Ruling planetThe Sun
Sign symbolThe Lion
Opposite signAquarius
Birthday number21/3
Tarot cardXXI. The World
Cardology birth cardFive of Clubs
BirthstonesPeridot and spinel
Birth flowersGladiolus and poppy

August 21 across four symbolic traditions

Western astrology

Leo and Leo 30

August 21 is Leo, shaped by The Sun. This is the third decan of leo, a distinct part of the sign's story, while the exact Sun degree still depends on the complete birth moment.

Leo 30 is pictured as an unsealed letter. Cosmic Oceans calls it "The Openness That Tests Trust." For this birthday, the image brings candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property into a specific scene and asks how the quality appears in conduct, choices, and relationships.

Explore astrology

Numerology

Birthday Number 21/3

21/3 reduces to 3 and brings expression, imagination, and the ability to make an idea memorable. On August 21, the number works through the day's concern with candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property.

Birthday Number 21/3 describes the calendar day, not the complete numerology profile. The Life Path changes with the birth year, so two people born on August 21 can share this number and still carry very different larger patterns.

Explore numerology

Cardology

Five of Clubs

The Five of Clubs belongs to the suit concerned with knowledge, language, plans, and the life of the mind. Its rank speaks to change, movement, and the freedom to revise an arrangement that has become too small.

On August 21, the card adds a practical edge to candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property. It describes both what can become highly capable and where clearer limits keep that capability from carrying more than it should.

Explore Cardology
Five of Clubs playing card

Tarot correspondence

The World

The World completes a cycle and reveals the larger pattern it served. Completion is earned integration and readiness to enter the next field whole.

Beside the Five of Clubs, The World places a second light on candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property: not a prediction, but a way to notice when the gift is working clearly and when it has started repeating itself unconsciously.

Read The World
The World Tarot card from the Rider-Waite-Smith deck

The Sun is usually near 29 degrees leo, before the virgo ingress on August 21. Its exact sign and degree can shift with the birth year, local time, and birthplace, so a neighboring Sabian image may apply. The birth tool below calculates the actual moment. Explore the Sabian symbols.

August 21 birthday personality and traits

August 21 often prefers a life that can be read clearly. You may speak from the heart, show your enthusiasms, and dislike the games that make ordinary feeling unnecessarily obscure. Transparency is powerful, but it needs a chosen boundary; access should deepen with trust rather than arrive automatically.

Read together, the day number, cards, and solar season point toward candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property. This is one shared layer of the birthday, while the rest of the chart and the life already lived make it personal.

01

The Openness That Tests Trust

Confidence, transparency, trust, and the ability to communicate without excessive defensiveness or concealment. Choose what may be open, what must remain sealed, and who has earned access. Trust should be generous and informed.

02

Make the message clear, keep the inner room yours

Birthday Number 21/3 communicates, and The World completes a cycle by revealing its larger pattern. Share what serves the work and hold back what is still becoming. Privacy can protect quality rather than hide it.

03

Let trust earn the deeper page

You may disclose quickly because honesty feels like respect. Notice whether the other person can carry what they receive with care, reciprocity, and discretion before opening the next layer.

04

Do not confuse mystery with dishonesty

Some truths need time before language. Allow the unfinished self a private season without treating silence as failure.

August 21 love and compatibility

You may disclose quickly because honesty feels like respect. Notice whether the other person can carry what they receive with care, reciprocity, and discretion before opening the next layer.

Aries and Sagittarius often meet Leo through warmth, candor, and creative momentum. Aquarius brings perspective from the opposite side of the zodiac, while Gemini and Libra can appreciate Leo's expressive generosity without asking it to grow smaller.

Birthday Number 21/3, the Five of Clubs, and The World reveal needs that a Sun-sign comparison cannot see alone. A strong match is a person whose complete chart and choices can meet this birthday's need for candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property without turning it into a fixed role.

Astrology compatibility · Cardology compatibility · Human Design compatibility

Calculate the rest of your birth moment

See the complete chart behind your August 21 birthday.

Your date gives you Birthday Number 21/3, the Five of Clubs, and The World. Add your birth time and birthplace to calculate the exact Sun degree, Sabian symbol, Moon, Rising sign, Human Design, and the other systems connected to your Cosmic Snapshot.

No account required · Results in about 30 seconds · Your birth details are used only to calculate your chart.

Shared birthdays

Famous people born on August 21.

  • Aubrey Beardsley1872English illustrator and author
  • Count Basie1904American jazz pianist and bandleader
  • Friz Freleng1906American animator
  • Wilt Chamberlain1936American basketball player
  • Kenny Rogers1938American singer-songwriter
  • Kim Cattrall1956British-Canadian actor
  • Usain Bolt1986Jamaican Olympic sprinter

On this date

What happened on August 21.

  • 1858Abraham Lincoln and Stephen Douglas held the first of their seven debates
  • 1959Hawaii was admitted as the fiftieth United States state
  • 1991Latvia restored its independence from the Soviet Union
  • 1991The failed August Coup in Moscow collapsed
  • 2017A total solar eclipse crossed the continental United States

August 21 birthday questions

What people ask about August 21 birthdays.

What is the August 21 zodiac sign?

August 21 is Leo in the tropical zodiac. Leo is a fixed fire sign ruled by The Sun.

What is the August 21 birthday personality?

August 21 is associated with candid self-expression protected by wise privacy, so openness creates connection without turning every intimate truth into public property. Birthday Number 21/3 communicates, and The World completes a cycle by revealing its larger pattern. Share what serves the work and hold back what is still becoming. Privacy can protect quality rather than hide it.

What degree is the Sun on August 21?

The Sun is usually near 29 degrees leo, before the virgo ingress across birth years and time zones. The exact degree requires the year, local birth time, and birthplace.

What is the Sabian symbol for August 21?

This page uses Leo 30, pictured as an unsealed letter, as the date's reference symbol. The exact birth moment may move the Sun to a neighboring degree.

What is the August 21 Cardology birth card?

The August 21 birth card is the Five of Clubs. It is associated with change, movement, and the freedom to revise an arrangement that has become too small.

Which Tarot card matches August 21?

August 21 corresponds with The World, card XXI of the Major Arcana. The World completes a cycle and reveals the larger pattern it served. Completion is earned integration and readiness to enter the next field whole.

What is the numerology number for August 21?

The birthday number is 21/3, which reduces to 3 and is associated with expression, imagination, and the ability to make an idea memorable. The Life Path is calculated separately from the complete birth date.

Who is August 21 most compatible with?

Aries and Sagittarius often meet Leo through warmth, candor, and creative momentum. Aquarius brings perspective from the opposite side of the zodiac, while Gemini and Libra can appreciate Leo's expressive generosity without asking it to grow smaller. Full compatibility depends on both complete birth profiles rather than Sun signs alone.

Cosmic Oceans presents astrology, numerology, Cardology, and Tarot as symbolic traditions for reflection and entertainment, not as scientific, medical, psychological, legal, or financial advice.

Your complete birth chart

Calculate the chart behind your August 21 birthday.

Enter your birth date, time, and place to see the exact sky and connected systems for your birth moment.

Return to the Birth Tool