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Moon calendar · calculated, not copied

Moon Calendar for December 2026

Every phase of December 2026 day by day, with the exact moment of each new and full moon, the sign the Moon is travelling through, and the void-of-course windows in between.

🕓 Times shown in UTC. We calculate in UTC; your browser converts.

New moon and full moon in December 2026

Moon phases day by day

Each row is read at 12:00 UTC on that date — a calendar day has one icon, but the Moon moves through it, so a day near a phase change can read either way by a few hours. 18 of 31 days carry a void-of-course window; they are marked in the last column and listed in full below.

Day Phase Lit Moon in Void
1 Tue Last Quarter 47% Virgo —
2 Wed Last Quarter 37% Virgo void
3 Thu Waning Crescent 27% Libra —
4 Fri Waning Crescent 19% Libra void
5 Sat Waning Crescent 12% Scorpio void
6 Sun Waning Crescent 6% Scorpio —
7 Mon New Moon 2% Scorpio void
8 Tue New Moon 0% Sagittarius —
9 Wed New Moon 0% Sagittarius void
10 Thu New Moon 2% Capricorn void
11 Fri Waxing Crescent 5% Capricorn void
12 Sat Waxing Crescent 10% Capricorn void
13 Sun Waxing Crescent 17% Aquarius —
14 Mon Waxing Crescent 24% Aquarius void
15 Tue First Quarter 33% Pisces void
16 Wed First Quarter 43% Pisces —
17 Thu First Quarter 53% Pisces void
18 Fri First Quarter 63% Aries —
19 Sat Waxing Gibbous 73% Aries void
20 Sun Waxing Gibbous 82% Taurus —
21 Mon Waxing Gibbous 90% Taurus void
22 Tue Full Moon 96% Gemini —
23 Wed Full Moon 99% Gemini void
24 Thu Full Moon 100% Cancer —
25 Fri Full Moon 97% Cancer void
26 Sat Waning Gibbous 91% Leo —
27 Sun Waning Gibbous 83% Leo void
28 Mon Waning Gibbous 74% Virgo —
29 Tue Last Quarter 64% Virgo void
30 Wed Last Quarter 53% Libra void
31 Thu Last Quarter 43% Libra —

Void of course Moon in December 2026

Each window runs from the Moon's last exact aspect to a planet until it crosses into the next sign. Check the Moon right now if that is the question you actually came with.

From Until Moon in Last aspect
Virgo Moon sextile Mercury
Libra Moon sextile Jupiter
Scorpio Moon square Jupiter
Sagittarius Moon sextile Jupiter
Capricorn Moon square Saturn
Aquarius Moon conjunction Jupiter
Pisces Moon square the Sun
Aries Moon sextile the Sun
Taurus Moon square Jupiter
Gemini Moon sextile Jupiter
Cancer Moon sextile Venus
Leo Moon conjunction Jupiter
Virgo Moon sextile Venus

How to read this month

A lunar month is about 29.5 days, so it never lines up with a calendar month. That is why December 2026 can hold two new moons or none at all, and why the same phase name covers several days in a row: the eight names — new, waxing crescent, first quarter, waxing gibbous, full, waning gibbous, last quarter, waning crescent — are 45-degree slices of the Sun–Moon angle, not instants. The two moments that are instants, the new moon and the full moon, are listed at the top of the page to the minute.

The Moon in column is the zodiac sign the Moon is crossing, which it changes roughly every two and a half days — a different thing from your own Moon sign, which is fixed at birth. The void column marks the stretch between the Moon's last exact aspect and its next sign change. In traditional practice that is a window for finishing and resting rather than launching; it describes timing, not outcomes, and nothing on this page predicts events.

Where the numbers come from

Positions are computed with astronomy-engine, the same engine behind our birth chart calculator, checked against Swiss Ephemeris to within a fraction of an arc minute. The new and full moon moments were verified against AstroPixels (Fred Espenak, NASA/GSFC) and agree to better than two minutes. If you want a month to the second, cross-check a dedicated astronomy source such as timeanddate.com.

Take it further

This calendar is the sky. The tools below put it against your own chart — all free, no sign-up.

Lunar guide collection

Moon Rituals & Lunar Living

The lunar cycle explained, plus simple rituals for the new moon, the full moon and eclipse season.

$19 8 guides · 91 pages · PDF

See what's inside — $19

Frequently asked questions

When is the full moon in December 2026?

24 Dec 2026 at 01:28 UTC, with the Moon in Cancer. The table above converts that moment to your own time zone, which can move it to the day before or after.

When is the new moon in December 2026?

9 Dec 2026 at 00:52 UTC, with the Moon in Sagittarius. Times on this page are shown in your browser's time zone once the page loads.

Which time zone are these times in?

They are calculated in UTC and then converted by your browser to whichever time zone your device is set to — the page names it under the heading. A lunation is a single moment for the whole planet, so only the clock reading changes, never the event.

What does "void of course" mean in this table?

The Moon is void of course between its last exact aspect to a planet and the moment it enters the next sign. Traditional practice treats it as a poor window for starting something you want to stick, and a fine one for rest, tidying and finishing off. It is a timing convention, not a forecast of events.

How accurate are these dates?

They come from the same ephemeris engine as our birth chart calculator (astronomy-engine), not from a copied table. New and full moon moments were checked against AstroPixels (Fred Espenak, NASA/GSFC) and agree to well under two minutes.

Esotorium reports and tools are for self-reflection and entertainment. They are not medical, psychological, financial or legal advice, and they do not predict events.