When is the full moon in December 2026?

The full moon (the “Cold Moon”) is on December 24, 2026 at 01:28 UTC, and it is a supermoon, nearer than 361,000 km.

When is the new moon in December 2026?

The new moon is on December 9, 2026 at 00:52 UTC.

What do the percentages mean?

The illuminated fraction of the Moon’s visible disc at 12:00 UTC that day, computed from real ephemerides (astronomy-engine).

Space Time

Moon Phases: December 2026

The Cold Moon is full on December 24, 2026, and it is a supermoon. Every day’s phase is below, computed from real ephemerides, and you can watch any night in 3D.

▶ Watch the Cold Moon in 3D Free · real ephemerides · no install

December 2026 phase calendar

Sun

Mon

Tue

Wed

Thu

Fri

Sat

🌗

47%

🌘

37%

🌘

27%

🌘

19%

🌘

12%

🌘

🌑

🌒

10%

🌒

17%

🌒

24%

🌒

33%

🌓

43%

🌓

53%

🌔

63%

🌔

73%

🌔

82%

🌔

90%

🌔

96%

🌕

99%

🌕

100%

🌖

97%

🌖

91%

🌖

83%

🌖

74%

🌖

64%

🌗

53%

🌗

43%

Calendar days in UTC; the phase shown is at 12:00 UTC each day.

Exact times

🌗Last Quarter2026-12-01 06:09 UTC
🌑New Moon2026-12-09 00:52 UTC
🌓First Quarter2026-12-17 05:43 UTC
🌕Full Moon “Cold Moon” ✨ Supermoon2026-12-24 01:28 UTC
🌗Last Quarter2026-12-30 19:00 UTC

Times in UTC (shown in your timezone when JavaScript is on).

← November 2026 All months January 2027 →

See it, don’t just read it

Space Time is a free in-browser planetarium. Jump the clock to any date above and the Moon shows that exact phase, or stand on the Moon itself and watch the Earth. Open the app.