Moon calendar December 2025

In December 2025 the Moon is full on Dec 4 (the Cold Moon, a supermoon), and new on Dec 19, the darkest stretch of the month for stargazing.

The Moon each evening in December 2025

The Moon as seen at 9 p.m. Eastern Time each evening, with the share of its disk that is lit. Highlighted days have a main phase.

December 188%

December 294%

December 399%

December 4100%

December 598%

December 693%

December 786%

December 878%

December 968%

December 1058%

December 1148%

December 1238%

December 1329%

December 1421%

December 1514%

December 168%

December 174%

December 181%

December 190%

December 201%

December 214%

December 229%

December 2315%

December 2423%

December 2532%

December 2642%

December 2753%

December 2864%

December 2975%

December 3084%

December 3192%

December 2025 moon phases in US time zones

Phase	Eastern	Central	Mountain	Pacific	Alaska	Hawaii
Full Moon Cold Moon	Dec 4, 6:14 PM	Dec 4, 5:14 PM	Dec 4, 4:14 PM	Dec 4, 3:14 PM	Dec 4, 2:14 PM	Dec 4, 1:14 PM
Last Quarter	Dec 11, 3:52 PM	Dec 11, 2:52 PM	Dec 11, 1:52 PM	Dec 11, 12:52 PM	Dec 11, 11:52 AM	Dec 11, 10:52 AM
New Moon	Dec 19, 8:44 PM	Dec 19, 7:44 PM	Dec 19, 6:44 PM	Dec 19, 5:44 PM	Dec 19, 4:44 PM	Dec 19, 3:44 PM
First Quarter	Dec 27, 2:10 PM	Dec 27, 1:10 PM	Dec 27, 12:10 PM	Dec 27, 11:10 AM	Dec 27, 10:10 AM	Dec 27, 9:10 AM

The Cold Moon is a supermoon, 357,208 km from Earth (within 10% of the year's closest approach). See how we define a supermoon.

Perigee (closest): Dec 4, 6:07 AM ET, 356,953 km from Earth.
Apogee (farthest): Dec 17, 1:09 AM ET, 406,312 km from Earth.
Mercury at greatest morning elongation: Dec 7, 4:03 PM ET, 21° from the Sun.
Geminids peak: Dec 14, 2:44 AM ET.
December solstice: Dec 21, 10:03 AM ET.
Ursids peak: Dec 22, 11:07 AM ET.

Looking for one date? See the Moon on any date, such as the day you were born. For moonrise and moonset where you live, open your city's tonight page.