Birthday signs · Leo season
What zodiac sign is August 18?
August 18 lies in the sign Leo of the tropical zodiac. The Sun was in Leo at noon UTC on August 18 in all 101 years from 1930 through 2030, at 24.58° to 26.07° Leo. Day 26 to 28 of Leo season, in its late part, is August 18, with the element fire.
Calculated across 1930–2030 · checked .
August 18 is Leo
| Leo at noon UTC | 101 of 101 years, 1930–2030 |
|---|---|
| Nearest change of sign | at least 4 days away |
| Birth time needed for the sign | no |
August 18 at a glance
| Sign | ♌︎ Leo, the Lion |
|---|---|
| Element and mode | fire, fixed |
| Polarity | positive (masculine) |
| Ruler | the Sun (traditional) |
| Sun on this date | 24.6° to 26.1° Leo at noon UTC, 1930–2030 |
| Day of the season | day 26 to 28 of Leo season |
| Decan | third (20°–30°), face of Mars |
| Sidereal sign (Lahiri) | Leo |
| Day number | 9 (modern numerology) |
Rulers: Ptolemy; modern list.
The decan: late Leo
| Noon Sun | 24.58° to 26.07° Leo |
|---|---|
| Decan | third (20°–30°) |
| Face ruler, Chaldean order | Mars |
Faces after Lilly, in Chaldean order.3
August 18 by the numbers
| Day number | 9 (1 + 8 = 9) |
|---|---|
| Month-day number | 8 (8 + 9 = 17, then 1 + 7 = 8) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Leo season | 26 to 28 |
|---|---|
| Leo season opened | July 22 (7 years) or July 23 (79) or July 24 (15) |
| Leo season closed | August 22 (65 years) or August 23 (36) |
| Element and mode | fire, fixed |
| Traditional ruler | the Sun |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Leo season
Born in the late part of Leo, this person arrives at the end of the sign's warm stretch, when the summer spotlight is already starting to fade. They know how to hold a room and how to want to be seen. Yet the same person can find themselves standing at the back of a party, wondering why applause feels thinner than it used to. Their pride is real, and so is their wish to be someone others count on without having to ask.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Leo, all 101 years |
|---|---|
| Noon Sun, sidereal Leo | 1.1°–2.4° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on August 18
- Antonio Salieri (1750–1825), Italian composer and teacher
- Franz Joseph I (1830–1916), Emperor of Austria and King of Hungary
- Rosalynn Carter (1927–2023), First Lady of the United States from 1977 to 1981
- Luc Montagnier (1932–2022), French virologist and joint recipient of the Nobel Prize of Physiology or Medicine
- Robert Redford (1936–2025), American actor and director
- Patrick Swayze (1952–2009), American actor, producer, singer and dancer
- Felipe Calderón (1962), 63th President of Mexico
- Edward Norton (1969), American actor
Birth dates checked on Wikidata.6
August 18 in history
Observed on this date:
- Arbor Day (Pakistan)
- Armed Forces Day (North Macedonia)
- Birthday of Virginia Dare (Roanoke Island)
- Constitution Day (Indonesia)
- Long Tan Day, also called Vietnam Veterans' Day (Australia)
- National Science Day (Thailand)
Events on August 18:
- 707: Princess Abe accedes to the imperial Japanese throne as Empress Genmei.
- 1721: The city of Shamakhi in Safavid Shirvan is sacked.
- 1958: Vladimir Nabokov's controversial novel Lolita is published in the United States.
- 2008: The President of Pakistan, Pervez Musharraf, resigns under threat of impeachment.
How the answer was worked out
The sign of each year from 1930 through 2030 was read from the Sun's tropical longitude on August 18, calculated at noon UTC with Astronomy Engine.1 How the Machine works
Questions people also ask
What zodiac sign is August 18?
Each of the 101 sampled years from 1930 to 2030 puts August 18 in Leo, counting the Sun at noon UTC.
Is August 18 on a zodiac cusp?
No. On every August 18 from 1930 to 2030, the noon Sun was in Leo, and August 18 sits at least 4 days from the nearest change of sign.
What decan is August 18?
Every sampled year finds August 18 within the third decan of Leo (20°–30°), and the face ruler in the Chaldean order is accordingly Mars.
What is the birthday number for August 18?
For August 18, modern numerology gives a day number of 9 and a month-day number of 8, each found by adding digits.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I, sections 11-21 — LacusCurtius, University of Chicago. Verified .
- Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
- Life Path Number — Numerology.com (practitioner site). Verified .
- Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
- Wikipedia: August 18 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .