2020 has been an intense year, and it’s closing with fresh, optimistic energy as we move into a new cycle. December’s astrology brings a powerful shift—Jupiter and Saturn both move into Aquarius within days of each other—signaling a change of direction and renewed possibilities.
This month also features the final eclipse of 2020: a Solar eclipse in Sagittarius in mid-December. The combination of Aquarius and Sagittarius influences encourages expansion, fresh perspectives, and renewed hope as we look toward new opportunities.
Below is a clear overview of the notable transits and aspects for December 2020. It highlights when planets change signs, the timing of the Solar eclipse and Full Moon, key planetary aspects, and how these energies might show up in daily life.
Keep track of the planets month to month with the free astrology calendar. It’s downloadable for your computer or phone so you can follow the stars anywhere. Also be sure to check the free weekly video forecast for more insights.
Monthly Astrology Transits for December 2020
December 1, 2020
Mercury Enters Sagittarius
Mercury in Sagittarius brings big-picture thinking and a more optimistic outlook. Communication becomes more open and candid, and we’re likely to pursue ideas with enthusiasm. Expect broader conversations and a confident voice. Mercury remains in Sagittarius until December 20, 2020.
December 5, 2020
Venus (Scorpio) Trine Neptune (Pisces)
Venus in Scorpio forming a trine to Neptune encourages compassion, empathy, and tenderness in relationships. Romance and creative expression can flourish under this influence, and supportive, healing connections are easier to cultivate.
December 9, 2020
Sun (Sagittarius) Square Neptune (Pisces)
This square can blur focus and make things feel hazy. It’s a time to stay grounded, guard personal boundaries, and avoid situations where you might be taken advantage of. Sensitivity is heightened, so practical caution helps.
December 10, 2020
Venus (Scorpio) Sextile Pluto (Capricorn)
This sextile deepens relationships and increases emotional intensity. It’s favorable for strengthening intimacy, committing to meaningful change, and doing research or deeper work to uncover truths.
December 11, 2020
Sun (Sagittarius) Trine Mars (Aries)
Energy and initiative flow easily with this trine. It’s a great time to take action on projects that matter to you. Enthusiasm and drive are high, making it easier to pursue goals with confidence.
December 13, 2020
Mercury (Sagittarius) Square Neptune (Pisces)
This aspect challenges mental focus and can scatter attention. Allow imagination some space, but avoid making important decisions without clarity. Creative pursuits may benefit, but aim to balance vision with practicality.
December 14, 2020
Solar Eclipse in Sagittarius
The Sagittarius Solar eclipse opens doors for growth, learning, and new experiences. It encourages exploration, expanding horizons, and embracing fresh opportunities.
Venus (Scorpio) Sextile Jupiter (Capricorn)
Venus sextile Jupiter brings warmth, optimism, and positive social energy. It’s a favorable time for connections that expand our outlook or bring beneficial opportunities.
Mercury (Sagittarius) Trine Mars (Aries)
This trine energizes thinking and communication, supporting swift action on ideas. It’s a useful transit for advancing plans and making decisive progress.
December 15, 2020
Venus Enters Sagittarius
Before entering Sagittarius, Venus forms a supportive aspect with Saturn, encouraging responsibility and commitment in relationships. Once in Sagittarius, Venus brings a more adventurous, openhearted approach to love and social life. Venus remains in Sagittarius until January 8, 2021.
Venus (Scorpio) Sextile Saturn (Capricorn)
This sextile supports ethical, considerate decision-making in relationships and a readiness to commit or act responsibly with others.
December 17, 2020
Saturn Enters Aquarius
Saturn’s move into Aquarius is a major shift. Saturn leaves Capricorn and enters Aquarius where it will remain until March 2023. This placement encourages serious attention to future plans, individuality, and innovation. Saturn in Aquarius asks us to work diligently on authentic goals and to build structures that support long-term, original visions.
December 19, 2020
Jupiter Enters Aquarius
Jupiter joins Saturn in Aquarius, emphasizing expansion through originality, inventive thinking, and social progress. While Saturn brings structure and caution, Jupiter encourages boldness and broader horizons. Together, they invite disciplined optimism and thoughtful innovation. Jupiter will be in Aquarius through May 2021, returning briefly later in 2021.
Sun (Sagittarius) Conjunct Mercury (Sagittarius)
A Sun-Mercury conjunction boosts clarity of purpose and mental momentum. Ideas and plans feel aligned and energized, making it a productive period for developing new initiatives.
December 20, 2020
Mercury Enters Capricorn
Mercury moving into Capricorn brings a more realistic and practical tone to thinking and communication. Focus turns to achievable plans, clear structure, and long-term results. Mercury remains in Capricorn until January 8, 2021.
December 21, 2020
Jupiter (Aquarius) Conjunct Saturn (Aquarius)
The Jupiter-Saturn conjunction in Aquarius marks the start of a significant new cycle—one that emphasizes innovation, collective progress, and practical reform. This conjunction often signals long-term shifts in societal structures and personal goals.
Sun Enters Capricorn
With the Sun in Capricorn, focus deepens on long-term goals, discipline, and practical planning. This energy pairs well with the Jupiter-Saturn conjunction for setting ambitious but realistic objectives. The Sun remains in Capricorn until January 19, 2021.
December 23, 2020
Mars (Aries) Square Pluto (Capricorn)
This square has been prominent during Mars retrograde and now finishes its influence. It has pushed us to confront and rebuild what no longer serves us, highlighting inner strength and resilience. This transit supports transformation through facing fears and taking decisive action.
December 25, 2020
Mercury (Capricorn) Trine Uranus (Taurus)
Mercury trine Uranus favors inventive thinking and unconventional solutions. It’s a good time for future-focused planning and experimenting with new ideas that break from the norm.
December 27, 2020
Sun (Capricorn) Trine Uranus (Taurus)
This trine encourages embracing originality and stepping into new directions confidently. It can illuminate fresh pathways for the future and open opportunities to expand connections.
December 29, 2020
Full Moon in Cancer
The Full Moon in Cancer spotlights emotional needs, security, and the desire for nurturing and support. It’s a favorable time to address internal insecurities and to strengthen emotional foundations.
December 30, 2020
Venus (Sagittarius) Square Neptune (Pisces)
As the year closes, this square brings dreamy, romantic energy but also a risk of illusion or being overly idealistic. Maintain healthy boundaries and use this compassionate energy constructively—charitable actions and creative endeavors are well supported.
Bookmark this page for quick reference through the month, and check your daily horoscope to stay updated on how these transits may affect you personally.