The Maiden · August 23 – September 22
September 11 Zodiac Sign
Born on September 11, you're a Virgo — precise, perceptive and quietly devoted to making things better.
Zodiac sign
Element · Modality
Earth · Mutable
Decan (second)
Venus-ruled
Birthstone
Sapphire
Birth flower
Aster
Season position
Day 20 of 31
What astrology says about a September 11 birthday
September 11 is day 20 of Virgo season, so astrologers link it with the sign's core character: analytical, thoughtful, helpful, precise. Traits astrologers commonly associate with Virgo include excellent attention to detail; practical, organised and efficient; genuinely helpful and service-minded.
A commonly cited growth area for Virgo: perfectionism and self-criticism. For the full picture of the sign, read the Virgo guide.
2nd decan of Virgo: Venus
Each sign is divided into three decans, 10° slices that the Sun crosses in about ten days each. September 11 falls in the second decan of Virgo (about September 2–11), which the traditional Chaldean system assigns to Venus. Astrologers say that adds charm, warmth and an eye for beauty.
Venus softens the sign's edges and makes relationships, taste and pleasure more central to how these people move through life.
The number 11 in numerology
The 11 is a master number in numerology, tied to intuition and inspiration. An 11th-of-the-month birthday is linked to idealism, sensitivity and a strong inner compass.
Numerology is a separate tradition from astrology and is offered here for interest.
September birthstone and flower
The modern birthstone for September is Sapphire and the commonly listed birth flower is the aster. September falls in the month of the September equinox — autumn in the northern hemisphere and spring in the southern.
Virgo love and compatibility
Virgo expresses love through attentiveness. They remember how you take your coffee, notice when you're tired and quietly fix what's broken. Romance for Virgo is built on trust, intelligence and everyday care.
Astrology is a symbolic tradition, not a science, and interpretations vary between astrologers. This page is for reflection and entertainment, not prediction or advice.
Beyond your September 11 Sun sign
Your Virgo Sun is one planet. Your Moon, Rising sign and the exact Venus-ruled decan details live in your full natal chart. Get yours free on Skygram.
Get my free birth chartSeptember 11 birthday FAQ
What zodiac sign is September 11?
September 11 falls in Virgo, which runs from August 23 to September 22 in the tropical zodiac. The Sun changes sign at a slightly different moment each year, so the boundary can fall a day or so either side of these dates. If you were born close to the edge, your birth year, time and place decide it.
Is September 11 a cusp birthday?
Not by the usual definition, which counts the first and last couple of days of a sign. September 11 is day 20 of Virgo season, so it is normally read as a clear Virgo birthday.
Which decan is September 11?
September 11 is in the second decan of Virgo (September 2–11). In the traditional Chaldean system this decan is ruled by Venus, which astrologers say adds its own flavour to Virgo. Some modern astrologers assign decan rulers by element instead, which gives different planets, and decans are strictly 10° slices of the zodiac, so the date range is approximate.
What are the birthstone and flower for September?
The modern birthstone for September is Sapphire and the birth flower is the aster. These come from calendar tradition rather than astrology, and the lists vary by country and source.