--- title: "September Birthdays: Zodiac Signs, Decans and Numerology for Every Day" description: "September birthdays: zodiac signs and decans for every day of September, cusp dates, the month's numerology and its Chinese zodiac boundary." canonical: https://unifiedreading.com/birthday/september last-updated: 2026-10-23 reviewed: false author: Unified Reading editorial --- # September Birthdays: Zodiac Signs, Decans and Numerology for Every Day In Western astrology, September birthdays fall under Virgo and Libra. In most years September birthdays from the 1st to the 22nd are Virgo, and from the 23rd they are Libra. September 21, September 22, September 23 and September 24 are cusp dates. In numerology September is month 9. ## Key facts | Fact | Value | | --- | --- | | Sun signs (most years) | Virgo Sep 1–22 · Libra Sep 23–30 | | Cusp dates | Sep 21, Sep 22, Sep 23, Sep 24 | | Month number | 9 | | Days | 30 | | Chinese zodiac | The birth year's own animal (Lunar New Year has passed) | ## Zodiac signs and decans in September September opens with the last days of Virgo's first decan, where Mercury rules twice and attention to detail is at its sharpest. From about September 3 the second decan brings Saturn as sub-ruler, and with it responsibility and long-range planning. Around September 13 the third decan begins, and Venus softens Virgo's precision with an eye for beauty and craft. Then, around September 22 or 23, at the equinox, the Sun crosses into Libra. Mutable earth gives way to cardinal air, and the focus moves from improving things to balancing them, from the task to the relationship. The final week of September sits in Libra's first decan, where Venus is doubled. September as a whole travels from usefulness to grace, and the people born in it often value both equally. In most years September birthdays from the 1st to the 22nd are Virgo, and from the 23rd they are Libra. The cusp dates, where the sign can differ by year or time zone, are September 21, 22, 23 and 24; each has its own page explaining both possibilities. Decan by decan, the month opens in the first decan of Virgo, linked with Mercury, from the 3rd the second decan of Virgo, linked with Saturn, from the 13th the third decan of Virgo, linked with Venus and from the 23rd the first decan of Libra, linked with Venus. ## September birthdays in numerology and the Chinese zodiac September is month 9, the last single digit and the number numerologists link with endings, generosity and wide sympathy. It tends to give a birth date a mature, outward-looking quality, as if the person is asked to think about others as well as themselves. In the Chinese zodiac, September birthdays follow the calendar year's animal. The Four Pillars calendar moves into the Rooster month around September 7 or 8 with the solar term White Dew, so most September birthdays carry the Rooster in their month pillar. The Rooster is traditionally associated with precision, honesty and pride in doing things properly, a natural fit for Virgo's careful work. Paired with the compassionate 9, it suggests high standards held for a reason larger than personal credit. Every page for a September date lists the Life Path for several birth years, because the year changes the total even when the day stays the same. ## Famous September birthdays Each September page lists the best-known people born on that date, drawn from Wikidata and ranked by how many Wikipedia language editions have an article about them. A sample across the month: Annie Ernaux (September 1), François-Auguste-René de Chateaubriand (September 4), Georges-Louis Leclerc, Comte de Buffon (September 7), Jack Ma (September 10), Roald Dahl (September 13), Kuan Yew Lee (September 16), William Golding (September 19), Michael Faraday (September 22), William Faulkner (September 25) and Brigitte Bardot (September 28). Sharing a birthday with someone well known says nothing about a life's direction, but it is a pleasant way into the date's sign, decan and numbers, which each page then explains in turn. The lists favour people with a precisely recorded birth date in the modern Gregorian calendar, so some much-celebrated figures from earlier centuries are missing. ## Every September birthday - [September 1](https://unifiedreading.com/birthday/september-1) - [September 2](https://unifiedreading.com/birthday/september-2) - [September 3](https://unifiedreading.com/birthday/september-3) - [September 4](https://unifiedreading.com/birthday/september-4) - [September 5](https://unifiedreading.com/birthday/september-5) - [September 6](https://unifiedreading.com/birthday/september-6) - [September 7](https://unifiedreading.com/birthday/september-7) - [September 8](https://unifiedreading.com/birthday/september-8) - [September 9](https://unifiedreading.com/birthday/september-9) - [September 10](https://unifiedreading.com/birthday/september-10) - [September 11](https://unifiedreading.com/birthday/september-11) - [September 12](https://unifiedreading.com/birthday/september-12) - [September 13](https://unifiedreading.com/birthday/september-13) - [September 14](https://unifiedreading.com/birthday/september-14) - [September 15](https://unifiedreading.com/birthday/september-15) - [September 16](https://unifiedreading.com/birthday/september-16) - [September 17](https://unifiedreading.com/birthday/september-17) - [September 18](https://unifiedreading.com/birthday/september-18) - [September 19](https://unifiedreading.com/birthday/september-19) - [September 20](https://unifiedreading.com/birthday/september-20) - [September 21](https://unifiedreading.com/birthday/september-21) - [September 22](https://unifiedreading.com/birthday/september-22) - [September 23](https://unifiedreading.com/birthday/september-23) - [September 24](https://unifiedreading.com/birthday/september-24) - [September 25](https://unifiedreading.com/birthday/september-25) - [September 26](https://unifiedreading.com/birthday/september-26) - [September 27](https://unifiedreading.com/birthday/september-27) - [September 28](https://unifiedreading.com/birthday/september-28) - [September 29](https://unifiedreading.com/birthday/september-29) - [September 30](https://unifiedreading.com/birthday/september-30) ## Frequently asked questions ### What zodiac signs are September birthdays? In most years September birthdays from the 1st to the 22nd are Virgo, and from the 23rd they are Libra. The cusp dates, where the sign can differ by year or time zone, are September 21, 22, 23 and 24; each has its own page explaining both possibilities. ### What is the numerology number of September? September is month 9. The month is one of three parts of the Life Path calculation, with the day and the year. ### Which Chinese zodiac animal is someone born in September? Lunar New Year has always passed by September, so a September birth takes the animal of the calendar birth year. ## Related pages - [Birthdays](https://unifiedreading.com/birthday) - [August birthdays](https://unifiedreading.com/birthday/august) - [October birthdays](https://unifiedreading.com/birthday/october) - [September 1](https://unifiedreading.com/birthday/september-1) - [September 15](https://unifiedreading.com/birthday/september-15) - [Life Path calculator](https://unifiedreading.com/life-path-calculator) - [Zodiac sign calculator](https://unifiedreading.com/zodiac-sign-calculator) - [Chinese zodiac calculator](https://unifiedreading.com/chinese-zodiac-calculator) - [Name numerology calculator](https://unifiedreading.com/name-numerology-calculator) - [Birthday compatibility calculator](https://unifiedreading.com/birthday-compatibility-calculator) - [Birth chart calculator](https://unifiedreading.com/birth-chart-calculator) - [Zodiac signs](https://unifiedreading.com/zodiac) ## About Unified Reading Unified Reading combines Pythagorean numerology, the Western Sun sign (Moon and rising with a birth time), the Chinese zodiac and life-stage context in one reading. The preview is free at https://unifiedreading.com/#details; the full reading is $4.99, paid once through Stripe, with no subscription. A fictional sample is at https://unifiedreading.com/sample. With a birth time and place it adds whole sign houses and the chart ruler; it does not calculate planetary aspects or transits, and it is a framework for reflection, not a prediction.