October 31 zodiac sign
Seven degrees into Scorpio on October 31, the Sun is in the later part of the Mars-ruled first decan, where raw intensity starts to gather a researcher’s patience.
Sun signScorpio
- Sun at 6°–10° Scorpio
- 1st decan · Mars (modern: Pluto)
October 31 in profile
The seventh degree is still early Scorpio, emphatic and unpolished, though the sign is starting to find its direction. The first decan, with Scorpio as sub-sign and Mars as sub-ruler (Pluto by modern rulership), gives an October 31 Scorpio a probing mind and an unwillingness to accept surface answers. They are fixed water: deep, persistent and private. Often there is an inner world rich in ideas behind an outer persona that gives little away.
Learning is a hunt for root causes. They read entire series, trace family records and question received wisdom. Online courses are started but rarely finished unless they promise depth. They enjoy subjects with mysteries in them, such as archaeology, codes and the mind. Teachers either fascinate or bore them, with nothing in between. A good mystery novel can keep them reading until three in the morning.
Independence is non-negotiable. They need private time and space, and they resist being told what to do. In relationships they expect respect for boundaries. They may work best alone or in small, trusted teams. Shared calendars and constant check-ins wear them down quickly. The useful habit is stating that need clearly, so that their wish for autonomy does not leave partners and colleagues guessing.
Scorpio all day
In every year from 1930 to 2040 the Sun was in Scorpio for the whole of October 31, in every time zone. This is not a cusp birthday: the nearest changes of sign fall around October 24 and November 21.
Your Moon sign depends on the year
The Sun is in the same place on October 31 every year; the Moon is not. It changes sign every two and a half days, so people who share this birthday can have any of the twelve Moon signs. Here is where it was on October 31 in recent years, from 00:00 to 23:59 UTC (an arrow means it changed sign during the day).
- 2017Pisces
- 2018Cancer → Leo
- 2019Sagittarius
- 2020Taurus
- 2021Virgo
- 2022Capricorn → Aquarius
- 2023Gemini
- 2024Libra → Scorpio
- 2025Aquarius → Pisces
- 2026Cancer
Compatible signs for a Scorpio
Sun-sign compatibility starts from the element. Scorpio gets on most easily with its own element and with the two sextile signs, and feels the strongest pull from its opposite. The full charts decide how a real pairing feels.
A gift for an October 31 birthday
A session with an archivist to trace family records, or a guided tour of an old underground site, so they can explore a mystery on their own terms.
Asked about October 31
What zodiac sign is October 31?
October 31 is Scorpio in every year: the Sun is at about 6°–10° Scorpio that day, in the sign’s 1st decan.
Is October 31 a cusp birthday?
No. The Sun is well inside Scorpio on October 31. The cusp days, when the Sun changes sign, fall around October 24 and November 21. Astrology has no blended cusp signs anyway: at any moment the Sun is in one sign.
What decan is October 31?
October 31 falls in the 1st decan of Scorpio. In the triplicity system we use, that decan belongs to Scorpio and its ruler Mars (modern: Pluto), which colours the Scorpio Sun with a little of Scorpio.
Your birthday is only the Sun
An October 31 birthday tells you where the Sun was. The Moon, the Rising sign and eight more planets each sit somewhere of their own, and they depend on the year, the hour and the place. The free calculator shows all of them.