Full Moon in Gemini – December 4, 2025

On December 4, the Full Moon in Gemini, also called the Cold Moon, invites us into a reflective and insightful space as we prepare to wrap up the year.

Miss Dana

11/26/20252 min read

Full Moon in Gemini – December 4
Full Moon in Gemini – December 4

As the final full moon of the calendar year rises, it illuminates not only the night sky but also the thoughts, conversations, and connections that have shaped our journey. On December 4, the Full Moon in Gemini, also called the Cold Moon, invites us into a reflective and insightful space as we prepare to wrap up the year.

Why Is It Called the Cold Moon?

The name "Cold Moon" comes from traditional Indigenous and Old Farmer’s Almanac naming systems. This moon marks the time when winter truly begins to take hold in the Northern Hemisphere. Frost lingers longer, nights stretch further, and the stillness of cold becomes a teacher.

In ancient times, this was the moon under which communities would prepare for the depths of winter. Just as animals burrow deep and humans retreat indoors, this moon calls us to go inward—mentally, emotionally, and spiritually.

Other names for this moon include:

  • Long Night Moon – due to its appearance near the winter solstice

  • Snow Moon (in some traditions)

  • Moon of Popping Trees (an Ojibwe name, referring to the sounds trees make in the bitter cold)

♊ Full Moon in Gemini Energy

Gemini, ruled by Mercury, governs:

  • Communication & learning

  • Curiosity & flexibility

  • Social connections & storytelling

  • The duality between logic and emotion

When the full moon glows in Gemini, it activates the mind and the heart. You may feel called to speak your truth, revisit conversations, or find a deeper understanding in a situation that once confused you.

This is a time for:

  • Mental clarity

  • Closing open-ended thoughts or decisions

  • Releasing stories that no longer serve you

  • Seeking dual truths (yours and another’s)

Gemini also reminds us that we are multi-faceted beings. This lunation encourages integration—not perfection. It’s okay to be both serious and silly, focused and dreamy, introverted and social.

Final Thoughts

As this Cold Moon casts its silvery light over frost-covered rooftops and quiet forests, let it also light up the corners of your mind. Speak, write, release, and breathe deep. Gemini reminds us that the mind is a spellcaster, and our words are wands.

May your thoughts be kind, your words be true, and your heart feel lighter beneath this moon.

With warmth in the chill and magic in your breath,