FULL MOON GEMINI - DECEMBER FULL MOON 2025
Speak. Listen. Reveal. Release.
On 4 December 2025, the Moon reaches its full brilliance at 13° Gemini, opposite the Sun in Sagittarius — bringing a lively, curious, and intellectually charged energy into the air.
This Full Moon — also called the “Cold Moon” for December’s turn toward longer nights — marks the final Full Moon of 2025. It’s a time to reflect, reveal, and release mental clutter… and to make space for new ideas and clarity before the year ends.
Themes + Energies
Communication + Clarity
Gemini, ruled by airy intellect and mercurial curiosity, sharpens our urge to express, connect, and understand. Under this Full Moon, expect a heightened urge to speak truths, share ideas, finish conversations, or bring clarity to what’s been left unsaid.
Mental Buzz, Ideas + Insight
This lunation energises the mind — expect flashes of inspiration, bursts of creative or intellectual energy, or sudden clarity about ideas/plans. It’s a fertile window for learning, brainstorming, writing, planning or any mental work that’s been pending.
Duality, Balance + Integration
The Gemini ↔ Sagittarius axis invites us to balance logic with meaning: Gemini brings ideas, words, curiosity — Sagittarius asks about purpose, truth, beliefs. This Full Moon encourages us to examine not just what we think, but why— bridging mind and meaning.
Release + Wrap-Up
Full Moons are often times of culmination — things started at the last New Moon may finish, revelations may surface, loose ends can be tied up. Under Gemini, this can mean mental clutter, unresolved communications, overthinking, or inner conflicts coming to light so they can be cleared.
Connection + Social Currents
Because Gemini rules communication, relationships — especially in spheres of community, friendships, conversations — can feel extra alive, dynamic or revealing. You may find clarity in relationships, reconnect with friends, or receive news/insights through dialogue.
Crystals + Tools to Work With This Full Moon
Here are some crystals and tools especially harmonious with Gemini’s mental & communicative energy — great to place on your altar, hold during ritual, or keep nearby when doing mental/spiritual work:
Clear Quartz : Amplifies clarity, mental energy, truth — helps focus intention and sharpen insight.
Blue Lace Agate : Supports gentle, clear communication and calm speech — useful if Gemini energy feels scattered or overwhelming.
Citrine : Uplifts the mind, boosts creativity, encourages optimism and positive mental flow — ideal for new ideas or manifesting after release.
Crystal Work Ideas
Cleanse and recharge crystals under the full moon light — it’s a powerful time for purification and new intentions.
Hold a stone during journaling or meditation to ground your thoughts and amplify clarity/insight.
Build a small “communication & clarity” altar with crystals, candle, paper/pen — perfect for releasing old thoughts & setting new mental intentions.
Ritual + Intention
1. Mental Clean-Up & Release Ritual
Write down thoughts, worries, or storylines that feel heavy, confusing, or unresolved. Then read them aloud under moonlight, and symbolically release them — burn, shred, or crumple and toss away. Follow with a cleansing crystal (e.g. Clear Quartz or Labradorite) to anchor new clarity.
2. Words & Truth Ceremony
Under the Full Moon, light a candle and hold a crystal (e.g. Blue Lace Agate). Speak truths you’ve kept inside, fears you want to release, messages you need to voice — even if just to yourself. Let the light of the Moon amplify your voice.
3. New Ideas / Project Setting
Use this time to brainstorm, plan, organise. Give yourself a journal or mind-map session: outline dreams, ideas, intentions for the next season or year. Let the mental energy flow free.
4. Clarity Meditation + Intuition Check-in
Sit quietly, hold a crystal, breathe deeply. Ask yourself: “What truth do I need to see now?” or “What story am I ready to change?” Listen to inner impulses, insights, emotional signals.
5. Communication Cleanse
This can be literal: reach out to someone, have an honest conversation, set boundaries; or symbolic: release old communication patterns — limiting beliefs, inner criticisms, negative self-talk.
Why This Full Moon Matters — A Gentle Reminder
This Gemini Full Moon isn’t heavy like some of the deep-water lunations, but it’s vital — especially at the end of the year.
It invites clarity, breath, renewal of mind. It helps us take stock of what we believe, what we say, what we think, and how we connect — with others and ourselves.
It’s an invitation to:
Speak your truth
Sort mental noise from inner wisdom
Release what no longer serves your clarity
Step into 2026 with lighter thoughts, clearer intentions, and open communication
Let yourself ride the energy — let the words come, let the thoughts settle, let clarity emerge.
JOURNAL PROMPTS
What thoughts, worries, or mental loops have been taking up too much space in my mind lately?
What project, dream, or plan feels exciting right now?
What mindset do I want to carry into 2026?
Happy Full Moon!
