Conversations, messages, and paperwork that have been building since late May come to a head. Your thinking turns broad and optimistic again after weeks of second-guessing.

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Predictions for this month

  1. The Full Moon at 13° Gemini on December 4 lights up Aries' third house of communication, siblings, and short trips

    Bringing news and conversations to a head.

    Conversations, messages, and paperwork that have been building since late May come to a head. You may receive news that settles an open question, or finally say something you have been holding back. A sibling, neighbor, or close contact could play a key role. With the Sun in your ninth house, try to see the bigger picture before you react to small details. Finish writing projects, contracts, or courses rather than starting new ones. Choose your words with care, because what you say now will be remembered.

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  1. Mercury enters Sagittarius on December 11

    Moving into Aries' ninth house of travel, higher learning, and publishing after its retrograde in Scorpio ended on November 29.

    Your thinking turns broad and optimistic again after weeks of second-guessing. Plans for travel, study, or teaching gain momentum, and paperwork that stalled during the retrograde starts to move. This is a good time to apply for a course, pitch an idea, or book a trip for the new year. Conversations with people from other cultures or backgrounds open your mind. Watch out for overpromising and check the facts before you commit to anything big. Mercury stays here until January 1, so use these weeks to plan.

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  2. Mars, your ruling planet, enters Capricorn on December 15

    Becoming exalted in Aries' tenth house of career, status, and public reputation until January 23.

    Your energy shifts firmly toward work and long-term goals. Mars is at its strongest in Capricorn, so your ambition now comes with discipline and staying power. You can make real progress on a career move, a promotion, or a project that puts you in the public eye. Superiors will notice steady results more than bold speeches. Avoid power struggles with authority figures and channel your drive into a clear plan. The effort you put in now can build momentum that lasts well into 2026.

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  3. The Sun squares Saturn on December 17

    Setting Aries' ninth house of travel and big plans against Saturn in the twelfth house of rest, retreat, and unfinished business.

    A plan you are excited about may meet a delay, a rule, or a reality check. Travel, legal matters, or study plans can need extra paperwork or patience. Saturn in your twelfth house asks you to deal with something behind the scenes before you move ahead. Treat fatigue as a signal to slow down, not to push harder. Take responsibility for what is yours and let go of what is not. A small, realistic step works better than a grand gesture this week.

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  4. A New Moon at 28° Sagittarius on December 20 opens a fresh cycle in Aries' ninth house of travel, education, beliefs, and long-term vision.

    This is the month's best moment to set intentions for growth. Think about where you want to go next year, literally or figuratively: a trip, a degree, a new skill, or a wider audience for your work. Seeds you plant now can grow over the next six months. Because this New Moon falls in the last degrees of the sign, close old plans before you start new ones. Neptune at the end of Pisces squares the New Moon, so check details and keep your expectations realistic. Write down one clear goal and take a first small step.

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  5. The Sun enters Capricorn on December 21, the winter solstice

    Putting Aries' tenth house of career and public life in the spotlight, with Venus joining on December 24.

    With the Sun, Mars, and soon Venus all in your career sector, work and reputation become the main story of the holiday season. People in charge are watching how you handle responsibility. Recognition, a new offer, or a clearer sense of direction can arrive before the year ends. Venus here helps you win support through charm and good relationships with colleagues. Balance ambition with rest so you don't start 2026 exhausted. Set your professional goals for the new year now, while the support is strong.

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Frequently asked questions

What is the Aries horoscope for December 2025?

Conversations, messages, and paperwork that have been building since late May come to a head. Your thinking turns broad and optimistic again after weeks of second-guessing.

What are the key astrology dates for Aries in December 2025?

December 4 – The Full Moon at 13° Gemini on December 4 lights up Aries' third house of communication, siblings, and short trips; December 11 – Mercury enters Sagittarius on December 11; December 15 – Mars, your ruling planet, enters Capricorn on December 15; December 17 – The Sun squares Saturn on December 17; December 20 – A New Moon at 28° Sagittarius on December 20 opens a fresh cycle in Aries' ninth house of travel, education, beliefs, and long-term vision; December 21 – The Sun enters Capricorn on December 21, the winter solstice.

Is Aries affected by a retrograde in December 2025?

Yes. December 11: Mercury enters Sagittarius on December 11. Your thinking turns broad and optimistic again after weeks of second-guessing.