New Moon
September 16, 2031
06:47 PM UTC UTC in Virgo
New Moon in VirgoLunation Calendar
Moon Phases September 2031: New Moon, Full Moon & Signs
Moon phases for September 2031 with calculated UTC times and zodiac signs. New Moon: September 16, 2031 at 06:47 PM UTC in Virgo. Full Moon: September 1, 2031 at 09:21 AM UTC in Pisces. The month view below also tracks Moon sign ingresses and local-time conversions.
Key Dates
New Moon and Full Moon in September 2031
Full Moon
September 1, 2031
09:21 AM UTC UTC in Pisces
Full Moon in PiscesCalculation Basis
Hermetikon calculates these lunar timings from its astronomy engine and stores the canonical moments in UTC. They are Hermetikon reference timings, not Swiss Ephemeris output; local times are derived from the UTC moment.
Local personalization
Local timing for the September 2031 moon calendar
The calendar stays canonical in UTC for search, citations, and stable reference. Apply your own coordinates here to convert featured moments into local time and add local ascendant and planetary-hour context.
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Current moon
September 2031 lunar calendar
Use this panel to personalize the September 2031 calendar.
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Featured local timings
Full Moon in Pisces
Sep 1, 2031, 9:21 AM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
Last Quarter in Gemini
Sep 8, 2031, 4:14 PM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
New Moon in Virgo
Sep 16, 2031, 6:47 PM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
First Quarter in Capricorn
Sep 24, 2031, 1:20 AM UTC
Canonical dates stay in UTC, but this panel converts them to your browser timezone.
Lunar Phase Events
Full Moon
in PiscesDateSeptember 1, 2031
Time (UTC)09:21 AM UTC
Local: Sep 1, 2031, 9:21 AM UTC
SignPisces
The Moon stands in opposition to the Sun, achieving maximum illumination. Classical doctrine treats the Full Moon as a peak of lunar expression - the Moon is fully lit, powerful, and separated from the Sun by the widest arc.
Full Moon in PiscesLast Quarter
in GeminiDateSeptember 8, 2031
Time (UTC)04:14 PM UTC
Local: Sep 8, 2031, 4:14 PM UTC
SignGemini
The Moon stands in its third square to the Sun, now waning and decreasing in light. Classical doctrine marks this as a moment of release, clearing, and dissolution as the cycle moves toward its end.
Last Quarter in GeminiNew Moon
in VirgoDateSeptember 16, 2031
Time (UTC)06:47 PM UTC
Local: Sep 16, 2031, 6:47 PM UTC
SignVirgo
The Moon conjoins the Sun, becoming invisible and combust. Classical doctrine regards this as the weakest lunar condition - the Moon is without light, applying to the Sun, and incapable of reflecting its rays.
New Moon in VirgoFirst Quarter
in CapricornDateSeptember 24, 2031
Time (UTC)01:20 AM UTC
Local: Sep 24, 2031, 1:20 AM UTC
SignCapricorn
The Moon stands in square (quartile) to the Sun, having completed one quarter of its synodic cycle. Classical doctrine marks this as a moment of tension, decision, and action - the Moon's will presses against the solar principle.
First Quarter in CapricornFull Moon
in AriesDateSeptember 30, 2031
Time (UTC)06:58 PM UTC
Local: Sep 30, 2031, 6:58 PM UTC
SignAries
The Moon stands in opposition to the Sun, achieving maximum illumination. Classical doctrine treats the Full Moon as a peak of lunar expression - the Moon is fully lit, powerful, and separated from the Sun by the widest arc.
Full Moon in AriesDaily Moon Lookup - September 2031
Each row uses a noon UTC reference for the daily phase and Moon sign. Major lunations and sign ingresses keep their calculated UTC moments.
| Date | Phase | Moon Sign | Calculated Events |
|---|---|---|---|
| September 1 | Full Moon100% illuminated | Piscesnoon UTC reference | |
| September 2 | Full Moon98% illuminated | Piscesnoon UTC reference | |
| September 3 | Full Moon94% illuminated | Ariesnoon UTC reference | No major lunation or sign ingress. |
| September 4 | Full Moon88% illuminated | Ariesnoon UTC reference | No major lunation or sign ingress. |
| September 5 | Waning Gibbous80% illuminated | Taurusnoon UTC reference | |
| September 6 | Waning Gibbous71% illuminated | Taurusnoon UTC reference | No major lunation or sign ingress. |
| September 7 | Waning Gibbous61% illuminated | Gemininoon UTC reference | |
| September 8 | Waning Gibbous52% illuminated | Gemininoon UTC reference | |
| September 9 | Last Quarter42% illuminated | Gemininoon UTC reference | |
| September 10 | Last Quarter33% illuminated | Cancernoon UTC reference | No major lunation or sign ingress. |
| September 11 | Last Quarter24% illuminated | Cancernoon UTC reference | No major lunation or sign ingress. |
| September 12 | Last Quarter17% illuminated | Leonoon UTC reference | |
| September 13 | Waning Crescent10% illuminated | Leonoon UTC reference | No major lunation or sign ingress. |
| September 14 | Waning Crescent5% illuminated | Leonoon UTC reference | |
| September 15 | Waning Crescent2% illuminated | Virgonoon UTC reference | No major lunation or sign ingress. |
| September 16 | Waning Crescent0% illuminated | Virgonoon UTC reference | |
| September 17 | New Moon1% illuminated | Libranoon UTC reference | |
| September 18 | New Moon3% illuminated | Libranoon UTC reference | No major lunation or sign ingress. |
| September 19 | New Moon8% illuminated | Libranoon UTC reference | |
| September 20 | New Moon14% illuminated | Scorpionoon UTC reference | No major lunation or sign ingress. |
| September 21 | Waxing Crescent23% illuminated | Scorpionoon UTC reference | |
| September 22 | Waxing Crescent33% illuminated | Sagittariusnoon UTC reference | No major lunation or sign ingress. |
| September 23 | Waxing Crescent44% illuminated | Sagittariusnoon UTC reference | |
| September 24 | First Quarter55% illuminated | Capricornnoon UTC reference | |
| September 25 | First Quarter66% illuminated | Capricornnoon UTC reference | No major lunation or sign ingress. |
| September 26 | First Quarter77% illuminated | Aquariusnoon UTC reference | |
| September 27 | Waxing Gibbous86% illuminated | Aquariusnoon UTC reference | No major lunation or sign ingress. |
| September 28 | Waxing Gibbous93% illuminated | Piscesnoon UTC reference | |
| September 29 | Waxing Gibbous98% illuminated | Piscesnoon UTC reference | No major lunation or sign ingress. |
| September 30 | Waxing Gibbous100% illuminated | Ariesnoon UTC reference |
Month View Calendar - September 2031
Each day shows the Moon sign at noon UTC, any major phase event, and calculated UTC Moon sign ingresses. Use the personalization panel above for local-time conversion and location-specific context.
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Moon Sign Runs
A compact view of how the Moon moves through the zodiac across the month.
Moon Sign Ingresses
These are the calculated UTC sign changes for the Moon in September 2031, with local-time conversion shown below each ingress.
September 2, 2031 at 08:28 PM UTC UTC
Local time: Sep 2, 2031, 8:28 PM UTC
The Moon leaves Pisces and enters Aries.
September 5, 2031 at 12:47 AM UTC UTC
Local time: Sep 5, 2031, 12:47 AM UTC
The Moon leaves Aries and enters Taurus.
September 7, 2031 at 09:05 AM UTC UTC
Local time: Sep 7, 2031, 9:05 AM UTC
The Moon leaves Taurus and enters Gemini.
September 9, 2031 at 08:42 PM UTC UTC
Local time: Sep 9, 2031, 8:42 PM UTC
The Moon leaves Gemini and enters Cancer.
September 12, 2031 at 09:27 AM UTC UTC
Local time: Sep 12, 2031, 9:27 AM UTC
The Moon leaves Cancer and enters Leo.
September 14, 2031 at 09:06 PM UTC UTC
Local time: Sep 14, 2031, 9:06 PM UTC
The Moon leaves Leo and enters Virgo.
September 17, 2031 at 06:40 AM UTC UTC
Local time: Sep 17, 2031, 6:40 AM UTC
The Moon leaves Virgo and enters Libra.
September 19, 2031 at 02:10 PM UTC UTC
Local time: Sep 19, 2031, 2:10 PM UTC
The Moon leaves Libra and enters Scorpio.
September 21, 2031 at 07:53 PM UTC UTC
Local time: Sep 21, 2031, 7:53 PM UTC
The Moon leaves Scorpio and enters Sagittarius.
September 23, 2031 at 11:56 PM UTC UTC
Local time: Sep 23, 2031, 11:56 PM UTC
The Moon leaves Sagittarius and enters Capricorn.
September 26, 2031 at 02:27 AM UTC UTC
Local time: Sep 26, 2031, 2:27 AM UTC
The Moon leaves Capricorn and enters Aquarius.
September 28, 2031 at 04:09 AM UTC UTC
Local time: Sep 28, 2031, 4:09 AM UTC
The Moon leaves Aquarius and enters Pisces.
September 30, 2031 at 06:18 AM UTC UTC
Local time: Sep 30, 2031, 6:18 AM UTC
The Moon leaves Pisces and enters Aries.
Classical Sources on Monthly Lunations
These citations explain why classical astrologers tracked monthly new and full moons, quarterly turns, and conjunction-based month judgments.
Tetrabiblos
Claudius Ptolemy
150
"The second part of the consideration relates to each month, and requires a similar observation of the new or full Moon first taking place on the Sun’s progress through each sign: and it must be remembered, that, if a new Moon should have happened at a period nearest to the Sun’s transit over the past tropical or equinoctial point, the new Moon also in each succeeding sign, until the commencement of the next quarter, are to be observed; but, if a full Moon should have so happened, then similar observation is to be made of each subsequent full Moon. The angles, also, must be duly attended to, as well as the planets and stars ruling in both the places [104] ; and especially the nearest phases, applications, and separations of the planets, and their properties. The peculiar qualities of the two places, and the winds, liable to be excited by the planets themselves and by those parts of the signs in which they may be situated, are likewise to be considered; and also that particular wind, which is indicated by the direction of the Moon’s ecliptical latitude. By the aid of these observations, and by weighing and comparing the existing vigour of each of the several properties and qualities, the general constitution of the atmosphere during each month may be predicted"
CHAPTER XIII MODE OF CONSIDERATION FOR PARTICULAR CONSTITUTIONS OF THE ATMOSPHEREOpen in Reader
Tetrabiblos
Claudius Ptolemy
150
"The third part of this consideration appertains to significations applying more minutely, and points out their force or weakness. In this case, the partile configurations of the Sun and Moon, at the intermediate quarters, as well as at the new or full Moon, are to be attentively regarded; since there is a certain variation in the constitution of the atmosphere, which usually commences about three days before, and sometimes, also, about three days after the Moon has equated her course to the Sun"
CHAPTER XIII MODE OF CONSIDERATION FOR PARTICULAR CONSTITUTIONS OF THE ATMOSPHEREOpen in Reader
Clavis Astrologiae Elimata
Henry Coley
1669
"When you shall make the minute of a ☌ your Basis or Radix, you may give judgment of the change of Weather in that moneth; for your judgment shall be framed according to the principal Dominator of the Angle of every Figure, for that Planet overcomes in the Nature of the Aire; assuming together with these things the Quality of the present time, viz. the season of the year"
Page 280Open in Reader
Books behind the September 2031 moon calendar
Open the cited books and chapters behind the monthly lunation calendar.
Moon Phases September 2031 - FAQ
When is the full moon in September 2031?
The full moon in September 2031 is on September 1, 2031 at 09:21 AM UTC UTC, in Pisces. The page also converts that moment into the visitor's local timezone.
When is the new moon in September 2031?
The new moon in September 2031 is on September 16, 2031 at 06:47 PM UTC UTC, in Virgo. The page also converts that moment into the visitor's local timezone.
How many moon phases are there in September 2031?
There are 5 major lunar phase events in September 2031: Full Moon, Last Quarter, New Moon, First Quarter, Full Moon.