Libra
September 23 to October 22 · Cardinal Air · Ruled by Venus
- Dates
- September 23 to October 22
- Element
- Air
- Modality
- Cardinal
- Ruling planet
- Venus
- Birthstone
- Opal
- Lucky colours
- Blue, Lavender
About Libra
Libra is a cardinal air sign ruled by Venus, the only zodiac sign symbolised by an object, the scales, standing for balance, fairness and harmony. Tradition ties Libra to partnership and diplomacy. Libra season opens autumn.
Libra traits
As a cardinal air sign, Libra is often described with these strengths and challenges. Astrology is a tradition, not a science, so read this as a character sketch rather than a prediction.
Strengths
- Diplomatic
- Fair-minded
- Sociable
- Gracious
Challenges
- Indecisive
- Conflict-averse
- People-pleasing
Libra dates and cusps
Libra runs from September 23 to October 22. Because the sun does not cross the sign boundaries at exactly the same clock time each year, the first and last dates can shift by a day. If your birthday sits right on the edge, the birth profile tool will show the sign for your exact date. Libra falls in September and October.
Libra birthstone and colours
The traditional Libra birthstone is Opal, and the sign's lucky colours are Blue and Lavender. These pair naturally with Libra in jewellery or a birth profile card.
Libra compatibility
Libra tends to match most easily with Gemini, Aquarius, Leo and Sagittarius. These are the classic element-based matches. See how Libra pairs with any sign on the compatibility pages.
Frequently asked questions
What are the Libra dates?
Libra covers September 23 to October 22. Boundary dates can shift by a day between years, so if you were born right at the edge, check your exact birthday.
What element is Libra?
Libra is a air sign, and specifically a cardinal air sign ruled by Venus.
What is the Libra birthstone?
The traditional Libra birthstone is Opal.
Who is Libra most compatible with?
Libra is traditionally most compatible with Gemini, Aquarius, Leo, Sagittarius.
Other zodiac signs
Last updated 2 July 2026.