October 21 Zodiac Sign: Libra
The short answer
People born on October 21 are Libra. On this date the Sun sits between 26.7° Libra and 29.0° Libra in every year from 1950 to 2025, in the third decan of Libra.
October 21 at a glance
| Zodiac sign | Libra (September 23 to October 22) |
|---|---|
| Sun position, 1950 to 2025 | 26.7° Libra to 29.0° Libra (usually 27.9° Libra at noon UTC) |
| Decan | third decan of Libra: Gemini (triplicity), Jupiter (Chaldean), Four of Swords (Golden Dawn) |
| Element | Air |
| Modality | Cardinal |
| Ruling planet | Venus |
| Nearest sign change | About 0.9 days away |
What an October 21 birthday means
On October 21 the Sun sits between 26.7° Libra and 29.0° Libra in every year from 1950 to 2025, counting every hour of the day in UTC. Its usual noon position is 27.9° Libra.
That places October 21 in the third decan of Libra. The modern triplicity system gives this decan to Gemini, the older Chaldean order gives it to Jupiter, and the Golden Dawn tradition pairs it with the Four of Swords.
Libra is an air sign of the cardinal modality, ruled by Venus. Air signs think in conversations and connections; ideas are how they move. Cardinal signs start things: each one opens a season.
October 21 sits close to the boundary between Libra and Scorpio, about 0.9 days away, but in every year charted the Sun was in Libra for the whole of this date.
When the Sun changes sign around October 21
Across 1950 to 2025, the Sun entered Scorpio on these dates (UTC):
- October 22: 3 years
- October 23: 65 years
- October 24: 8 years
If you were born near the change, your birth year and time decide your sign: cast your free birth chart to see it.
Where these figures come from
The Sun's position was charted at 12:00 UTC on every day from 1950 to 2025, and the start and end of each date were placed on the straight line between neighbouring days, which is exact to a small fraction of a degree. The range covers every hour of October 21 in UTC across all 76 years; someone born far from UTC can sit up to about half a degree beyond it. Decans follow two traditional systems: the triplicity system, which gives each third of a sign to the three signs of its element in turn, and the older Chaldean order of faces, which runs through the seven classical planets from Mars at the start of Aries.
Other birthdays
October: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Born on October 21? Vera reads the whole chart, not just the Sun.
Your Sun sign is one line of your chart. Vera casts the rest from your birth time and place, then answers what you actually want to know.