Full moon moon in December 2031
The December full moon in Poland occurs on:
Traditional name: Cold Moon· illumination ≈100%
About the in December 2031 full moon
We calculate dates using Astronomy Engine for the instant when the Moon's and Sun's ecliptic longitudes, viewed from Earth's centre, differ by 180°. Times use Europe/Warsaw, including daylight saving changes, rounded to the nearest minute.
How much of the disc is lit around the full moon
Percentage of the disc illuminated 24 hours before the full moon, at the full moon and 24 hours afterwards, calculated for the exact instant on Astronomy Engine. Disc tilt is not shown because it depends on the observer's location and the time of night.
Earlier and later full moons
The full moon of 28 December 2031 is adjacent to: Beaver Moon and Wolf Moon. See the full moon calendar for all dates.
Where does the name ‘Cold Moon"?
Cold Moon (English Cold Moon) is a traditional full moon name associated with December. A name referring to the long, cold nights of early winter. This is a culturalname, not an astronomical one - popularised by the American Farmers’ Almanac.
Full moon in December 2031 occurs on 28 December at 18:33 Polish local time (CET), when the disc is illuminated by almost 100%. The Moon rises around dusk and shines almost all night - in winter it can appear especially bright against snow and long nights. A good time for observing the Moon, but also a night when bright light may make falling asleep harder.
Prepare your sleep for a bright night
- Dim bright bedroom lights an hour before bed.
- Cover your windows to keep outside light out.
- Limit blue light from screens in the evening - evening glasses can help.
- If you cannot darken the room fully, an eye mask can help.
Additional data for this full moon
These approximate values apply at the full moon instant. They help explain the Moon's position relative to Earth.
Moon age
14.4 days after new moon
Time since the most recent new moon.
Distance from Earth
403,366 km from Earth
Distance between the centres of the Moon and Earth at full moon.
Apogee or perigee
closer to apogee; moving away from Earth; approximately 2.8 days apart
Whether the full moon is closer to the greatest or smallest Earth–Moon distance.
Transit over Poland
28 December at 23:46 (CET), Warsaw
The nearest time when the Moon is highest above the horizon in Warsaw.
Easier sleep around the full moon
For the full moonUnwind eye mask
The soft mask blocks light and makes your bedroom a truly dark place to sleep - especially useful on bright nights around the full moon.