Birthdays · January

January 15 birthdayZodiac sign, famous birthdays, personality and your 2027 numbers

The short answer

January 15 is a Capricorn birthday in the third decan of Capricorn with birthday number 6 and a Personal Year 9 in 2027; Martin Luther King Jr. (1929), Molière (1622) and Pierre-Joseph Proudhon (1809) were born on January 15 too.

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January 15 zodiac sign: Capricorn

Sun sign: Capricorn
Sun at noon UTC: 24.2° to 25.6° Capricorn
Decan: Third of Capricorn, 20° to 30°
Element and mode: Earth, cardinal
Ruling planet: Saturn

In every one of the 91 years from 1940 to 2030 the Sun stood in Capricorn for the whole of January 15, in every time zone on Earth, between 24.2° and 25.6° of the sign at noon UTC, so a January 15 birthday is a Capricorn birthday whatever the year or the hour.

At noon UTC on January 15 the Sun is in the third decan of Capricorn, 20° to 30°, in every one of those years, a face that belongs to the Sun in the Chaldean order and is read through Virgo, ruled by Mercury, by triplicity; in most years the decan runs from January 11 to January 19, and January 15 is its fifth day.

In most years January 15 is the 25th day of the Sun’s season in Capricorn, which runs from December 22 to January 19 counted at noon UTC, with four days of it still to come. January 15 is the 15th day of every year, with 350 days of the year still to come, or 351 in a leap year.

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Famous January 15 birthdays

The earliest born of the twelve is Molière, in 1622, and the most recent Dove Cameron, in 1996; two of them were born after 1949.

Born since 1950

Dove Cameron (born 1996), American actress and singer
Pitbull (born 1981), American rapper

Born from 1900 to 1949

Martin Luther King Jr. (1929–1968), American Baptist minister and civil rights leader
Edward Teller (1908–2003), Hungarian-American Jewish nuclear physicist
Nâzım Hikmet (1902–1963), Turkish communist poet, playwright and novelist

Born in the 1800s

Pierre-Joseph Proudhon (1809–1865), French politician, philosopher, anarchist and socialist
Sofya Kovalevskaya (1850–1891), 19th-century Russian mathematician
Mihai Eminescu (1850–1889), Romanian poet, novelist and journalist
Artturi Ilmari Virtanen (1895–1973), Finnish chemist and professor

Born before 1800

Molière (1622–1673), French playwright and actor
Franz Grillparzer (1791–1872), Austrian dramatist and poet
Alexander Griboyedov (1795–1829), Russian diplomat, playwriter, poet, and composer

Birthdays from Wikidata, checked against Wikipedia’s “On this day” births: the twelve best known of the 61 people the Almanac’s table keeps for January 15, by how many Wikipedia editions cover them, with dates before the calendar reform as the sources give them.

January 15 birthday personality

The Sun rules the last ten degrees of Capricorn in the Chaldean order and Virgo lends Mercury’s method by triplicity, so this is read as authority earned through competence, the one who knows how things actually run. The reflection is whether duty has quietly pushed out joy.

Born on the 15th, your 1 and 5 add to 6: independence and movement turning toward care. Numerology reads it as a warm, sociable birthday with a strong pull toward home. With earth, the 6 is read as devotion shown in work: the meal cooked, the fence mended, the promise kept.

A question to carry from January 15: where is your discipline needed at home, and where is it being given away too easily?

The Sun in Capricorn and the number 6 are only part of the story: your Moon, your rising sign and the rest of your chart have as much to say, and the tradition offers all this as a mirror, never a verdict.

Birthday number 6

Born on the 15th, 1 + 5 = 6, so your birthday number is 6: a 6 vibration supports love, responsibility, beauty, family, and service, with care, beauty, and responsibility as its gift and over-giving, perfectionism, or control through care as its strain.

Your 2027 numbers

A Greek sphinx with a lion's body, folded wings and a serene woman's face, seated on a stone plinth, an engraving — The Sphinx, keeper of riddles

For a birthday on January 15 the house method reduces the birth month and the day on their own and adds the Universal Year of 2027, 11 (2 + 0 + 2 + 7 = 11, a master number kept whole), as it stands: January, the 1st month, gives 1, the 15th reduces to 6, and 1 + 6 + 11 = 18, which reduces to 9, so 2027 is your Personal Year 9.

A Personal Year 9 is read as the closing year of a nine-year cycle, a time to finish, forgive and clear space. With the Universal Year an 11, the house reads the release as making room for an inspired new beginning.

Personal Months of 2027, a Personal Year 9: Jan 1 Feb 11 Mar 3 Apr 4 May 5 Jun 6 Jul 7 Aug 8 Sep 9 Oct 1 Nov 2 Dec 3

In 2027 January 15 falls on a Friday, the day the old reckoning gives to Venus, and is a Personal Day 7 (1 + 15 = 16, then 7) in a Personal Month 1 (9 + 1 = 10, then 1), while February is a master month 11; the Personal Year itself turns on 1 January, not on the birthday.

January birthstone and birth flower

Birthstone: Garnet
Birth flowers: Carnation, and snowdrop as the second flower

January’s garnet comes from the modern list (the Jewelers of America list of 1912, as since revised), and its carnation and snowdrop from The Old Farmer’s Almanac.

More birthdays

Common questions

What zodiac sign is January 15?

Capricorn: from 1940 to 2030 the Sun stayed in Capricorn for the whole of January 15 in every year and every time zone, 24.2° to 25.6° into the sign at noon UTC, so no birth year or birth time changes it.

Is January 15 a cusp birthday?

No: the Sun stays in Capricorn all day on January 15 in every year from 1940 to 2030, wherever on Earth the birth takes place, and the nearest cusp birthday is January 19, four days later.

Who was born on January 15?

Among the best known people born on January 15 are Martin Luther King Jr. (1929–1968), Molière (1622–1673) and Pierre-Joseph Proudhon (1809–1865), with Sofya Kovalevskaya, Mihai Eminescu and Edward Teller and six more named on this page.

What is the birthday number for January 15?

6. Born on the 15th, 1 + 5 = 6, so your birthday number is 6: a 6 vibration supports love, responsibility, beauty, family, and service, with care, beauty, and responsibility as its gift and over-giving, perfectionism, or control through care as its strain.

What is the 2027 Personal Year for a January 15 birthday?

9. For a birthday on January 15 the house method reduces the birth month and the day on their own and adds the Universal Year of 2027, 11 (2 + 0 + 2 + 7 = 11, a master number kept whole), as it stands: January, the 1st month, gives 1, the 15th reduces to 6, and 1 + 6 + 11 = 18, which reduces to 9, so 2027 is your Personal Year 9.