December 15th - 21st, 2025
The astrology for this week of December 15th through the 21st of 2025, the final week of autumn, can have us swinging high, swinging low — moments of irrational euphoria alternating with spells of sobriety and reckoning. Holiday lights shimmer brightly, but beneath the sparkle, reality asks for grounding.
The week opens with Mars exiting Sagittarius and entering Capricorn, a Sign of Exaltation for Mars. The shift is palpable. Where recent weeks emphasized enthusiasm, movement, and indulgence, Mars in Capricorn restores structure, discipline, and long-range focus. Earth energy returns, offering ballast amid the frenzy.
Early in the week, spirits may dip. Concerns about affordability, responsibility, and sustainability can creep in, even as temptation whispers “if not now, when?” The impulse to spend as a form of escape is strong, though wisdom urges restraint.
As the weekend approaches, the Sagittarius New Moon on Friday sets a two-week tone colored by inspiration — but also by obstacles. With the New Moon square Saturn and Neptune, vision meets resistance, and clarity competes with confusion.
The week closes with the Winter Solstice on Sunday, as the Sun enters Capricorn. In the darkest hours of the year, light is reborn — a reminder that cycles turn, even when the path ahead feels uncertain.
No matter how turbulent these times appear, we are living through a profound paradigm shift. The veil thins. Awareness grows. Out of darkness, light is born.
Happy Solstice.
Monday, December 15 — Back on the Ground - Back on the Ground – Pluto, Mars Capricorn. Monday begins this week with the Moon in Scorpio and the Scorpio Moon square Pluto. Mars exits Sagittarius and enters Capricorn [2:34 AM EST], a Sign of Exaltation for Mars.
Tone of the Day
Sobering, corrective, and grounding — a moment of reckoning.
Background / Planetary Influence
The Moon in Scorpio squares Pluto, intensifying emotional undercurrents. Mars exits Sagittarius and enters Capricorn [2:34 AM EST], where Mars is exalted. Fantasy yields to practicality.
Best Practices
Take an honest look at finances, commitments, and long-term goals. Structure restores confidence. Small, disciplined steps outperform grand gestures.
Pitfalls to Avoid
Denial, avoidance, or swinging from indulgence straight into harsh self-punishment. Extremes serve no one.
How to Use the Energy
Use this day to recalibrate. Enjoy the holidays — but with intention. Let moderation guide behavior and allow Mars in Capricorn to anchor your ambitions in reality.
Tuesday, December 16 — Down Time to Regroup –Lunar Grand Trine, Jupiter, Sun, Saturn. Tuesday continues with the Scorpio Moon with the Moon trine Jupiter, triggering a Water Grand Trine with the Scorpio Moon trine Jupiter in Cancer tonight, and the Moon trine Saturn in Pisces tomorrow. The Sun squares Saturn.
Tone of the Day
Quiet, restorative, introspective.
Background / Planetary Influence
The Scorpio Moon trines Jupiter, initiating a Water Grand Trine, and later trines Saturn in Pisces. Meanwhile, the Sun squares Saturn, tempering momentum.
Best Practices
Rest. Reflect. Replenish emotional reserves. Home, hearth, and inner stillness nourish the spirit.
Pitfalls to Avoid
Pushing through fatigue or mistaking stillness for stagnation.
How to Use the Energy
Step back from noise and obligation. Contemplate the deeper meaning of the season — the birth of light amid darkness. Restoration now strengthens resolve later.
Wednesday, December 17 — Grounded by Intuition – Lunar Grand Trine, Saturn, Uranus, Neptune, Moon Void-of-Course, Pluto. Wednesday continues with the Moon in Scorpio with the Moon completing the Water Grand Trine that it triggered yesterday when the Scorpio Moon was trine Jupiter in Cancer, today with the Moon trine Saturn in Pisces. The Moon opposes Uranus, and the Moon trines Neptune. The Moon then goes Void-of-Course for close to an hour and a quarter [10:24 AM EST – 11:38 AM EST] as the Moon completes its transit of Scorpio and before the Moon enters Sagittarius where today the Sagittarius Moon sextiles Pluto. The three transcendental planets are engaged.
Tone of the Day
Intuitive, productive, quietly powerful.
Background / Planetary Influence
The Scorpio Moon completes the Water Grand Trine, trining Saturn and Neptune while opposing Uranus. The Moon goes Void-of-Course [10:24–11:38 AM EST] before entering Sagittarius and sextiling Pluto. All three transcendental planets are engaged.
Best Practices
Move deliberately. Blend experience with intuition. Address important matters early.
Pitfalls to Avoid
Rushing outcomes or forcing resolution before timing aligns.
How to Use the Energy
Trust inner guidance. Allow solutions to reveal themselves organically. Progress made today is durable because it honors both wisdom and instinct.
Thursday, December 18 — Joy to the World – Mercury. Thursday has the Sagittarius Moon conjunct Mercury to begin the day.
Tone of the Day
Optimistic, expansive, celebratory.
Background / Planetary Influence
The Sagittarius Moon conjuncts Mercury, lifting spirits and broadening perspective.
Best Practices
Travel, explore, learn, and celebrate — physically or philosophically. Share enthusiasm generously.
Pitfalls to Avoid
Over-spending, over-promising, or ignoring practical limits.
How to Use the Energy
Let joy lead — but keep one eye on the ledger. Positivity today counters cynicism and renews faith in possibility.
Friday, December 19 — Dizzying Daze – Venus, Saturn, Sagittarius New Moon, Sun, Neptune, Moon Void-of-Course. Friday has the Moon completing its transit of Sagittarius with the Moon conjunct Venus, the Moon square Saturn, the Moon conjunct the Sun at the time of the New Moon [8:43 PM EST], and the Moon square Neptune. The Moon then goes Void-of-Course for a little over an hour [10:41 PM EST – 11:53 PM EST] as the Moon finishes its transit of Sagittarius without making further connections to the planets and before the Moon enters Capricorn just before midnight. This New Moon with four planets in Sagittarius and the New Moon squares both Saturn and Neptune in Pisces.
Tone of the Day
Disorienting, pressured, emotionally charged.
Background / Planetary Influence
The Sagittarius New Moon [8:43 PM EST] occurs with four planets in Sagittarius, squared by Saturn and Neptune. The Moon goes Void-of-Course [10:41–11:53 PM EST].
Best Practices
Slow down. Practice patience. Accept delays as redirections.
Pitfalls to Avoid
Forcing progress, ignoring missing pieces, or assuming clarity where none exists.
How to Use the Energy
Set intentions loosely. This New Moon teaches surrender, not acceleration. Let uncertainty refine discernment over the next two weeks.
Saturday, December 20 — Which Way, Corrigan – Mars, Sun, Neptune. Saturday has the Capricorn Moon conjunct Mars early in the day, and the Sun square Neptune in the evening.
Tone of the Day
Productive early, vulnerable later.
Background / Planetary Influence
The Capricorn Moon conjuncts Mars early, boosting efficiency. The Sun squares Neptune in the evening, blurring boundaries.
Best Practices
Plan the day carefully. Prioritize tasks and complete them methodically.
Pitfalls to Avoid
Evening excess, escapism, or emotional over-extension.
How to Use the Energy
Work first, relax later — consciously. Productivity earlier earns gentler indulgence later.
Sunday, December 21 — Reach Out of the Darkness – Jupiter, Venus, Saturn, Winter Solstice, Sun Capricorn. The Moon continues its transit of Capricorn on Sunday with the Capricorn Moon opposed Jupiter in the evening. Venus squares Saturn and the Sun enters Capricorn [10:03 AM EST] at the Winter Solstice.
Tone of the Day
Reflective, tender, quietly profound.
Background / Planetary Influence
The Sun enters Capricorn at the Winter Solstice [10:03 AM EST]. Venus squares Saturn. The Capricorn Moon opposes Jupiter.
Best Practices
Practice compassion — toward others and yourself. Honor limits. Keep expectations modest.
Pitfalls to Avoid
Harsh judgment, self-criticism, or emotional rigidity.
How to Use the Energy
Mark the turning of the year consciously. Out of darkness, light is born — in nature and within. Choose patience, grace, and trust in the unfolding cycle.
Final Note
This week reminds us that cycles do not break — they turn. Autumn closes, winter begins, and within stillness lies renewal. Mars in Capricorn teaches discipline, the New Moon teaches humility, and the Solstice teaches faith.
Even now — especially now — the light is growing.