What is the December 2025 moon calendar?
The December 2025 moon calendar shows every lunar phase for the month, including the New Moon on December 20, 2025 and the Full Moon on December 4, 2025. The dates are calculated from precision astronomical ephemeris data. In the Celtic Wheel of the Year and contemporary lunar-ritual practice, this is the working calendar, set an intention each new moon, release each full, and let the rhythm do the rest.
Key Moon Dates in December 2025
Full Moon
Thursday, December 4, 2025 · Moon in Gemini
The Full Moon illuminates everything, gratitude and grief alike. Set your crystals in the moonlight tonight. Write what you're ready to release on a piece of paper and tear it up. The cycle continues.
Supermoon
Thursday, December 4, 2025
When the moon draws close to Earth, her pull is stronger, on tides, on emotions, on the invisible threads between all living things. Ground yourself tonight. Walk barefoot if you can. Let the earth hold you while the moon pulls.
Last Quarter
Thursday, December 11, 2025 · Moon in Virgo
The Last Quarter whispers: let go. What's finished? What's run its course? Name it, thank it, release it. The growing darkness is not emptiness, it's making room for what comes next.
New Moon
Saturday, December 20, 2025 · Moon in Sagittarius
The New Moon invites you to plant a seed of intention. Find a quiet moment tonight, light a candle, hold your crystal, and whisper what you wish to grow. The darkness holds your secret safely.
First Quarter
Saturday, December 27, 2025 · Moon in Aries
The First Quarter asks: are you still committed? The initial excitement has settled. Now comes the real work. Hold your crystal and recommit to your intention with one concrete action today.
Crystal of the Month, December
Selenite
Selenite purifies and renews during December's closing cycle, preparing you for the year ahead.
Shop SeleniteAll Months, 2025
Continue the Lunar Year
Living by the Moon
Selene Tides on the eight phases and what each has traditionally been for, the moon through the twelve signs, and a blank lunar month planner you can fill for any month.
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Frequently asked questions about December 2025
When is the New Moon in December 2025?
The New Moon in December 2025 falls on December 20, 2025, in Sagittarius. Many lunar-ritual practitioners observe the New Moon with a single-candle, single-intention practice, the moon's rhythm asks us to begin gently.
When is the Full Moon in December 2025?
The Full Moon in December 2025 falls on December 4, 2025, in Gemini. Many cultures honor the Full Moon with cleansing rituals and visible-light reflection, set your crystals out under the night sky to charge them.
What crystal is recommended for December 2025?
Selene's crystal of the month for December is Selenite. Selenite purifies and renews during December's closing cycle, preparing you for the year ahead. CrystalStones.com describes this as a contemporary lunar-ritual pairing.
How accurate are these moon phase dates?
Moon phase dates are calculated using astronomy-engine with VSOP87/DE-440 ephemeris data, the same astronomical source professional observatories use. Phase instants are accurate to within minutes. Times shown are local; the exact astronomical moment depends on your time zone.