What zodiac sign is February 15?

February 15 is Aquarius

Exact sign finder

February 15 at a glance

Rulers: Ptolemy; modern list.⁶

The decan: late Aquarius

Faces after Lilly, in Chaldean order.³

What a decan is

February 15 by the numbers

Digit sums as numerology guides give them.⁴

Where the date falls in the season

Seasons by the noon-UTC rule; rulers after Ptolemy.²

• Aquarius reference
• Aquarius compatibility

Born at this point in Aquarius season

Born in the last stretch of Aquarius, this person usually reaches a new idea only after the group has finished debating it. They want their independent thinking to hold up under pressure, so they test each plan against the people it affects. When a friend asks for a quick yes on something they have doubts about, they pause, say what worries them, and offer a clearer alternative. The hard part is that the pause can read as distance, and they feel the chill of being misunderstood even when they meant care.

Interpretation, not prediction.

The sidereal sign

Ayanamsa convention.⁵

Tropical and sidereal, explained

Born on February 15

• Louis XV (1710–1774), King of France and Navarre 1715 to 1774
• Jeremy Bentham (1748–1832), British philosopher, jurist, and social reformer
• Susan B. Anthony (1820–1906), American women's rights activist
• Alfred North Whitehead (1861–1947), English mathematician and philosopher
• Charles-Édouard Guillaume (1861–1938), Swiss physicist
• Ernest Shackleton (1874–1922), Anglo-Irish Antarctic explorer
• Tomislav Nikolić (1952), 4th President of the Republic of Serbia
• Matt Groening (1954), American cartoonist

Birth dates checked on Wikidata.⁷

February 15 in history

Observed on this date:

• International Duties Memorial Day (Russia, regional)
• John Frum Day (Vanuatu)
• Liberation Day (Afghanistan)
• National Flag of Canada Day (Canada)
• Parinirvana Day, also celebrated on February 8. (Mahayana Buddhism)
• Statehood Day (Serbia), also observed by the Republic of Srpska since 2025.
• Susan B. Anthony Day (Florida, United States)
• The ENIAC Day (Philadelphia, United States)
• Total Defence Day (Singapore)

Events on February 15:

• 438: Roman emperor Theodosius II publishes the law codex Codex Theodosianus.
• 1764: The city of St. Louis is established in Spanish Louisiana (now in Missouri, USA).
• 1879: Women's rights: US President Rutherford B. Hayes signs a bill allowing female attorneys to argue cases before the Supreme Court of the United States.
• 1971: The decimalisation of the currencies of the United Kingdom and Ireland is completed on Decimal Day.
• 2003: The last Ariane 4 rocket is launched from the Guiana Space Centre, carrying Intelsat 907.

How the answer was worked out

For each year from 1930 through 2030, Astronomy Engine calculated the Sun's tropical longitude on February 15 at noon UTC, and each year's sign was read from that longitude.¹ How the Machine works

Questions people also ask

What zodiac sign is February 15?

Counting the Sun at noon UTC, February 15 is Aquarius in every one of the 101 sampled years from 1930 to 2030.

Is February 15 on a zodiac cusp?

No. On all February 15 dates from 1930 to 2030, the noon Sun was in Aquarius, and February 15 is at least 2 days from the nearest change of sign.

What decan is February 15?

February 15 is found in the third decan of Aquarius (20°–30°) in every sampled year, and the corresponding Chaldean face ruler is the Moon.

What is the birthday number for February 15?

In modern numerology, February 15 has a day number of 6 and a month-day number of 8, both found by adding digits.