Full Moon December 2025: Super Cold Moon in Gemini on December 4 — Time & Meaning

Full moon December 2025 (Cold Moon 2025): date, time and sign

The full moon of December 2025 is on December 4 in Gemini. It occurs at 23:14 UTC (18:14 EST in New York; 02:14 in Moscow). This full moon is traditionally called the Cold Moon. The Moon is a supermoon — its distance from Earth is 357,218 km, closer than 360,000 km. The waning Moon lasts from December 4 to December 20, about 15 days.

Full moon in Gemini 2025: what it is about

According to Vronsky, when the Moon transits Gemini, people become more sociable, free, and mobile. The need to receive and share information, exchange ideas and thoughts increases. People want to know what is happening around them and what others are doing. This Moon position enhances imagination and quick-wittedness. The mind becomes more agile, hands more dexterous, and people more talkative — even to the point of being chatty. Mental activity can be so active that it may lead to insomnia. Attention tends to be scattered across many things at once, with a tendency to take on everything simultaneously.

The aspects and the sky on the day

The Sun is in Sagittarius, opposite the Moon in Gemini. According to Vronsky, when the Sun transits Sagittarius, a spirit of travel awakens in people — some go on journeys or scientific expeditions. Interest in foreign countries and cultures grows. At the same time, favorable character traits strengthen: nobility and generosity, optimism and enthusiasm, mercy, good nature, goodwill, and a pull toward philosophical and religious questions. People become more sociable and open. Interest in science — especially medicine, both academic and alternative — increases, along with a desire to help others. This is a good time to address requests to superiors, courts, or high-ranking officials.

What it may mean inside

This full Moon brings together two contrasting inner movements: the Gemini Moon’s quick, scattered, information-hungry mind and the Sagittarius Sun’s expansive, idealistic, meaning-seeking spirit. Psychologically, this can feel like a tension between wanting to know everything (details, news, facts) and wanting to understand the big picture (purpose, truth, direction). The mind may race from one thought to another, while the heart longs for a single, clear horizon.

How to live the full moon in December 2025

• • For the Gemini restlessness: Instead of fighting the urge to multitask, give yourself short, focused periods for one activity. This honors the quick mind without letting it scatter.
• • For the Sagittarian pull: Take a few minutes to write down one big question you have about your life or the world. Don’t try to answer it — just hold it in awareness. This satisfies the need for meaning without pressure.
• • For communication: Be extra careful with letters, emails, and documents — double-check addresses and attachments. If you feel like talking a lot, choose one person to have a real conversation with, rather than many superficial ones.
• • For travel and plans: If you feel the urge to travel or explore, start with small steps: read about a place, plan a route, or visit a local spot you haven’t seen. This channels the Sagittarian spirit without impulsive decisions.