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Birthday signs · Virgo season

What zodiac sign is August 31?

Under the tropical zodiac, August 31 is set in Virgo. Each noon UTC on August 31 in the 101 years from 1930 through 2030 finds the Sun in Virgo, at 7.11° to 8.61° Virgo. Day 8 or 9 of Virgo season is August 31, located in the early part and associated with the element earth.

Calculated across 1930–2030 · checked .

August 31 is Virgo

Virgo at noon UTC101 of 101 years, 1930–2030
Nearest change of signat least 7 days away
Birth time needed for the signno

Exact sign finder

August 31 at a glance

Sign♍︎ Virgo, the Maiden
Element and modeearth, mutable
Polaritynegative (feminine)
RulerMercury (traditional)
Sun on this date7.1° to 8.6° Virgo at noon UTC, 1930–2030
Day of the seasonday 8 or 9 of Virgo season
Decanfirst (0°–10°), face of the Sun
Sidereal sign (Lahiri)Leo
Day number4 (modern numerology)

Rulers: Ptolemy; modern list.6

The decan: early Virgo

Noon Sun7.11° to 8.61° Virgo
Decanfirst (0°–10°)
Face ruler, Chaldean orderthe Sun

Faces after Lilly, in Chaldean order.3

What a decan is

Zodiac wheel marking Virgo and the Sun on August 31Twelve equal 30-degree signs with Virgo filled and its decan lines at 10 and 20 degrees. The Sun on August 31 is marked from 7.1° to 8.6° Virgo.♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎
Filled: Virgo. Dashed: decan lines. Teal arc: Sun on August 31.

August 31 by the numbers

Day number4 (3 + 1 = 4)
Month-day number3 (8 + 4 = 12, then 1 + 2 = 3)
Systemmodern numerology, digit sums

Digit sums as numerology guides give them.4

Where the date falls in the season

Day of Virgo season8 or 9
Virgo season openedAugust 23 (65 years) or August 24 (36)
Virgo season closedSeptember 21 (1 year) or September 22 (73) or September 23 (27)
Element and modeearth, mutable
Traditional rulerMercury

Seasons by the noon-UTC rule; rulers after Ptolemy.2

Born at this point in Virgo season

Born in the first stretch of Virgo, this person arrives with a sharp eye for loose ends. Late summer is still warm, yet they already notice which list is missing a line and which drawer needs sorting. Friends call on them to proofread a wedding toast or fix a broken schedule. Their steady care makes them reliable, though they can hold themselves to a standard nobody else asked for.

Interpretation, not prediction.

The sidereal sign

Sidereal sign, Lahiri ayanamsaLeo, all 101 years
Noon Sun, sidereal Leo13.6°–14.9°
ConventionIndian (Vedic) astrology

Ayanamsa convention.5

Tropical and sidereal, explained

Born on August 31

Birth dates checked on Wikidata.7

August 31 in history

Observed on this date:

Events on August 31:

7

How the answer was worked out

The tropical longitude of the Sun on August 31 was calculated at noon UTC for every year from 1930 through 2030 by Astronomy Engine, with each year's sign read from it.1 How the Machine works

Questions people also ask

What zodiac sign is August 31?

Among 101 sampled years from 1930 to 2030, August 31 is Virgo in every case, counting the Sun at noon UTC.

Is August 31 on a zodiac cusp?

No. Between 1930 and 2030, the noon Sun stood in Virgo on every August 31, and no August 31 lies within 7 days of a sign change.

What decan is August 31?

August 31 is found in the first decan of Virgo (0°–10°) in every sampled year, and the corresponding Chaldean face ruler is the Sun.

What is the birthday number for August 31?

Modern numerology gives August 31 a day number of 4 and a month-day number of 3, found by summing the digits.

Sources

  1. Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
  2. Ptolemy, Tetrabiblos, Book I — LacusCurtius, University of Chicago. Verified .
  3. Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
  4. Life Path Number — Numerology.com (practitioner site). Verified .
  5. Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
  6. Virgo (astrology) — Wikipedia. Verified .
  7. Wikipedia: August 31 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .

Written by The Midway Machine. Facts checked against 7 sources on 2026-10-19.

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