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Moon phases in December 2026

The full moon in December 2026 is the Cold Moon, on December 23, 2026 at 8:28 PM US Eastern time. Below: every main phase this month and the Moon each night at 9 pm.

  • Last Quarter
    Tuesday, December 1 at 1:09 AM EST
  • New Moon
    Tuesday, December 8 at 7:52 PM EST
  • First Quarter
    Thursday, December 17 at 12:43 AM EST
  • Full Moon · Cold Moon
    Wednesday, December 23 at 8:28 PM EST
  • Last Quarter
    Wednesday, December 30 at 2:00 PM EST

The Moon each night in December 2026 (9 pm US Eastern)

DateMoonPhaseLit
December 1Last Quarter41%
December 2Waning Crescent31%
December 3Waning Crescent22%
December 4Waning Crescent14%
December 5Waning Crescent8%
December 6Waning Crescent4%
December 7Waning Crescent1%
December 8New Moon0%
December 9Waxing Crescent1%
December 10Waxing Crescent4%
December 11Waxing Crescent8%
December 12Waxing Crescent14%
December 13Waxing Crescent21%
December 14Waxing Crescent29%
December 15Waxing Crescent39%
December 16Waxing Crescent49%
December 17First Quarter59%
December 18Waxing Gibbous69%
December 19Waxing Gibbous79%
December 20Waxing Gibbous87%
December 21Waxing Gibbous94%
December 22Waxing Gibbous98%
December 23Full Moon100%
December 24Waning Gibbous98%
December 25Waning Gibbous94%
December 26Waning Gibbous87%
December 27Waning Gibbous78%
December 28Waning Gibbous68%
December 29Waning Gibbous58%
December 30Last Quarter47%
December 31Waning Crescent37%
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Questions

When is the full moon in December 2026?

December 23, 2026 at 8:28 PM US Eastern time — the Cold Moon.

What is the Cold Moon?

A traditional name for the full moon of this time of year, from North American and European folk calendars.

Are the times exact?

Yes — calculated with astronomy-engine, which is checked against NASA JPL data; the phase instant is accurate to about a minute.

Other months

October 2026 · November 2026 · December 2026 · January 2027 · February 2027 · March 2027 · April 2027 · May 2027 · June 2027 · July 2027 · August 2027 · September 2027 · October 2027 · November 2027 · December 2027

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