Born on October 23: Zodiac Sign & Birthstone

Anyone born on October 23 is a Scorpio. The October 23 birthstone is Opal and the October 23 birth flower is the Marigold. This is a boundary date, so in some birth years it falls under Libra instead.

What it means to be born on October 23

A birthday on the 23rd of October falls under Scorpio. Scorpio is a fixed water sign, ruled by Pluto in modern astrology and by Mars in the older tradition. It is associated with intensity, depth and transformation. The scorpion is its emblem. Scorpio season sits in mid-autumn.

October 23 sits on the Libra and Scorpio boundary

This date is one of the twelve changeovers in the zodiac. A tropical sign begins at the moment the sun reaches a particular point, and that moment drifts by roughly six hours a year before a leap day pulls it back. On a boundary date the crossing can therefore land on either side of the calendar day, depending on the birth year and the time zone. Charts that publish fixed dates, including ours, round it.

In practice that means a birthday on October 23 is Scorpio in most years and Libra in some. Only an ephemeris for the exact birth year and time settles it. The full list of boundaries is in the cusp guide.

What weekday October 23 falls on

A common year is 365 days, which is 52 weeks plus one day, so a birthday moves forward one weekday each year and two across a leap year. Over time it visits all seven. The next time October 23 falls at a weekend is 2027, on a Saturday.

The weekday October 23 falls on over the next ten years.
Year	Weekday	Weekend?
2026	Friday	no
2027	Saturday	yes
2028	Monday	no
2029	Tuesday	no
2030	Wednesday	no
2031	Thursday	no
2032	Saturday	yes
2033	Sunday	yes
2034	Monday	no
2035	Tuesday	no

Your October 23 birthstone and flower

Because October 23 sits in October, your birthstone is Opal, a iridescent play-of-color gem traditionally meaning creativity, hope and imagination. Your birth flower is the Marigold, which stands for warmth, creativity and devotion. Together they make a natural birthday pairing for a card, gift or tattoo.

Every tradition tied to October 23

Everything the calendar assigns to October 23, in one table.
Field	Value
Zodiac sign	Scorpio (October 23 to November 21)
Element and modality	Fixed Water
Ruling planet	Pluto (traditionally Mars)
Lucky colors	Deep red and Black
Modern birthstone	Opal, iridescent play-of-color
Other recognized stones	Tourmaline (widest color range of any gem)
Birth flower	Marigold, with Cosmos as secondary
Day of the year	297 of 366 and 296 of 365
On a sign boundary	yes, shared with Libra

Scorpio strengths and matches

Scorpio is often described as passionate, determined and loyal. In the traditional element model, Scorpio matches most easily with Cancer, Pisces and Virgo. Those percentages come from a published formula you can check on the method page, not from a reading.

See the full birth profile

Want the shareable card for October 23? Open the birth profile tool, pick this date, and download a card to save or share. You can also read the full October overview, or browse every date we cover.

Frequently asked questions

What zodiac sign is October 23?

Anyone born on October 23 is a Scorpio, a fixed water sign ruled by Pluto (traditionally Mars). October 23 sits exactly on the boundary with Libra, so for some birth years the answer is Libra instead.

What is the birthstone for October 23?

The birthstone for October 23 is Opal, the October birthstone, which is iridescent play-of-color. October also recognizes Tourmaline.

What is the birth flower for October 23?

The birth flower for October 23 is the Marigold, the October birth flower, with the Cosmos as a secondary flower.

What day of the week does October 23 fall on?

In 2026 it falls on a Friday. Because a common year is 365 days, the weekday moves on by one each year and by two across a leap year, so it cycles through all seven over time. The table on this page lists the next ten years.

Where does October 23 fall in the year?

October 23 is day 297 of a leap year and day 296 of a common year.

Is October 23 on the cusp?

Yes. October 23 is a boundary date between Libra and Scorpio. The sun does not cross the boundary at the same clock time each year, so a birthday here can belong to either sign depending on the birth year and time zone. Settling it needs an ephemeris, not a date table.

Born on October 23