Moon phases in December 2028

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.

  • Cold MoonDecember 210.4° Gemini
  • New MoonDecember 1624.7° Sagittarius
  • Blue MoonDecember 3110.6° Cancer

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.

DatePhaseSignIlluminationNotes
Fri 1Waxing GibbousTaurus→Gemini100%
Sat 2Full MoonGemini100%
Sun 3Waning GibbousGemini→Cancer98%
Mon 4Waning GibbousCancer94%
Tue 5Waning GibbousCancer→Leo87%
Wed 6Waning GibbousLeo79%
Thu 7Waning GibbousLeo→Virgo69%
Fri 8Waning GibbousVirgo58%
Sat 9Last QuarterVirgo47%
Sun 10Waning CrescentVirgo→Libra36%
Mon 11Waning CrescentLibra25%
Tue 12Waning CrescentLibra→Scorpio16%
Wed 13Waning CrescentScorpio8%
Thu 14Waning CrescentScorpio→Sagittarius3%
Fri 15Waning CrescentSagittarius0%
Sat 16New MoonSagittarius→Capricorn0%
Sun 17Waxing CrescentCapricorn2%
Mon 18Waxing CrescentCapricorn→Aquarius6%
Tue 19Waxing CrescentAquarius12%
Wed 20Waxing CrescentAquarius20%
Thu 21Waxing CrescentAquarius→Pisces28%
Fri 22Waxing CrescentPisces37%
Sat 23First QuarterPisces→Aries46%
Sun 24Waxing GibbousAries56%
Mon 25Waxing GibbousAries65%
Tue 26Waxing GibbousAries→Taurus74%
Wed 27Waxing GibbousTaurus82%
Thu 28Waxing GibbousTaurus→Gemini89%
Fri 29Waxing GibbousGemini95%
Sat 30Waxing GibbousGemini→Cancer98%
Sun 31Full MoonCancer100%

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.

2
Full moons
1
New moons
14
Sign changes
100%
Brightest night

The Moon passes through 14 signs this month, in order: Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer. 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.

Two full moons this month

December 2028 carries a full moon on December 2 and another on December 31. The second one is a Blue Moon in the modern, month-based sense — the extra one the twelve traditional names have no slot for. It is not the older seasonal definition, which gives different dates, and nothing about the Moon looks any different.

A lunar eclipse this month

The full moon on December 31 is a Total lunar eclipse, with 100% of the disc inside the Earth’s umbra at maximum, at Cancer. An eclipse can only fall on a full moon, because it needs the Moon exactly opposite the Sun and close to a node — which is also why they arrive in pairs a fortnight either side of a solar eclipse.

Frequently asked questions

When is the full moon in December 2028?

There are 2 in December 2028. 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 December 2028?

There are 1 in December 2028, 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 December 2028?

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.