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Full Moon in December 2025: The Cold Moon

The full moon was on , 336 days ago.

  • Cold Moon
  • Moon in Gemini
  • 221,959 miles (357,208 km)
  • Supermoon

All times are UTC; your local time appears next to each.

When exactly was the full moon?

The Moon reached the exact full phase on . To the eye it looks full on the evening before and the evening after as well; it rises around sunset and sets around sunrise on those nights.

Moon sign
Gemini
Distance
221,959 miles (357,208 km)
Weekday
Thursday

What makes this full moon special

It is a supermoon: the Moon was within 90% of its closest approach to Earth in this orbit, so it looked a little larger and brighter than an average full moon. See all supermoons.

The Moon in Gemini

At the moment of the full moon, the Moon stands in Gemini, an air sign, which makes the day of the full moon a flower day in lunar gardening tradition. The sign changes every two to three days; the daily page shows the exact time of any change.

Garden and hair around the full moon

New moon in December 2025

The new moon was on , in Sagittarius—new moon in December 2025.

Before and after

Frequently asked questions

What day is the full moon in December 2025?

The full moon in December 2025 was on Thursday, December 4, 2025, at 11:14 PM UTC, with the Moon in Gemini. It is the Cold Moon.

Is December 5 a full moon?

The exact full moon was on December 4, 2025, at 11:14 PM UTC. To the eye the Moon looks full for about three nights, so on the evening of December 5, 2025, it still looked full, and the evening of December 3, 2025, was one of those nights too.

What is the December 2025 full moon called?

The December 2025 full moon is the Cold Moon. The long, cold nights of December gave the full moon its plain name; the Mohawk called it the Cold Moon, English folklore knew it as the Moon Before Yule, and the Mohican name was the Long Night Moon.

Is the December 2025 full moon a supermoon?

Yes. At the full moon on December 4, 2025, the Moon was 221,959 miles (357,208 km) from Earth, within 90% of its closest approach in that orbit, which is the common definition of a supermoon. A supermoon looks slightly larger and brighter than an average full moon.