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 in 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 3D universe explorer in your browser. 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.