Moon phases in May 2031
All 31 days, computed from the ephemeris rather than copied from another calendar: the Moon’s sign, the exact instant it changes sign, and the lit fraction of the disc. Shown in your own timezone.
- Flower MoonMay 716.4° Scorpio
- New MoonMay 210.1° Gemini
Day by day
The four quarter instants are marked on the day they fall; every other day carries the interval it is in. Four of the eight phases are moments and four are stretches, which is the one thing most calendars leave out.
| Date | Phase | Sign | Illumination | Notes | |
|---|---|---|---|---|---|
| Thu 1 | Waxing Gibbous | Leo→Virgo | 66% | ||
| Fri 2 | Waxing Gibbous | Virgo | 76% | ||
| Sat 3 | Waxing Gibbous | Virgo→Libra | 84% | ||
| Sun 4 | Waxing Gibbous | Libra | 91% | ||
| Mon 5 | Waxing Gibbous | Libra | 96% | ||
| Tue 6 | Waxing Gibbous | Libra→Scorpio | 99% | ||
| Wed 7 | Full Moon | Scorpio | 100% | ||
| Thu 8 | Waning Gibbous | Scorpio→Sagittarius | 97% | ||
| Fri 9 | Waning Gibbous | Sagittarius | 92% | ||
| Sat 10 | Waning Gibbous | Sagittarius→Capricorn | 85% | ||
| Sun 11 | Waning Gibbous | Capricorn | 75% | ||
| Mon 12 | Waning Gibbous | Capricorn→Aquarius | 65% | ||
| Tue 13 | Last Quarter | Aquarius | 53% | ||
| Wed 14 | Waning Crescent | Aquarius→Pisces | 42% | ||
| Thu 15 | Waning Crescent | Pisces | 32% | ||
| Fri 16 | Waning Crescent | Pisces→Aries | 22% | ||
| Sat 17 | Waning Crescent | Aries | 14% | ||
| Sun 18 | Waning Crescent | Aries→Taurus | 8% | ||
| Mon 19 | Waning Crescent | Taurus | 3% | ||
| Tue 20 | Waning Crescent | Taurus | 1% | ||
| Wed 21 | New Moon | Taurus→Gemini | 0% | ||
| Thu 22 | Waxing Crescent | Gemini | 1% | ||
| Fri 23 | Waxing Crescent | Gemini→Cancer | 4% | ||
| Sat 24 | Waxing Crescent | Cancer | 9% | ||
| Sun 25 | Waxing Crescent | Cancer | 15% | ||
| Mon 26 | Waxing Crescent | Cancer→Leo | 23% | ||
| Tue 27 | Waxing Crescent | Leo | 31% | ||
| Wed 28 | Waxing Crescent | Leo→Virgo | 40% | ||
| Thu 29 | First Quarter | Virgo | 50% | ||
| Fri 30 | Waxing Gibbous | Virgo | 60% | ||
| Sat 31 | Waxing Gibbous | Virgo→Libra | 70% | ||
Rows are UTC calendar days. The exact times follow the timezone setting above, so a time close to midnight can belong to the neighbouring day in your own zone.
- 1
- Full moons
- 1
- New moons
- 14
- Sign changes
- 100%
- Brightest night
The Moon passes through 14 signs this month, in order: Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra. It changes sign 14 times — roughly every two and a third days, though not evenly, because the Moon’s speed varies about twelve per cent over an orbit.
Frequently asked questions
When is the full moon in May 2031?
There are 1 in May 2031. The exact instants are in the table above, shown in your own timezone, with the degree and sign each one falls on.
When is the new moon in May 2031?
There are 1 in May 2031, listed to the minute in the table above along with every other phase of the month.
What timezone are these times in?
Your own, resolved in your browser. The rows are UTC calendar days, so an instant close to midnight can belong to the neighbouring day once converted — the table marks those with a small +1 or −1. You can switch the whole page to UTC if you want to compare it against a site that publishes UTC.
What sign is the Moon in during May 2031?
It moves through 14 of them, changing sign 14 times. The exact instant of each change is in the sign column above. The Moon spends about two and a third days in a sign, which is why it covers the whole zodiac in a month while the Sun takes a year.