December 2025 carries the feeling of “the moment before everything changes”.
Neptune stations direct in the last degree of Pisces, a Full Moon squares the Nodes, and a New Moon touches the Galactic Center – all pointing to a shift that’s been a long time coming.
There’s a sense of inevitability – like we’re being prepared for something larger than ourselves, something that officially begins in early 2026.
With the first half of the month drenched in Sagittarius, the arrow flies, and the preparation begins. By the time we move into the Capricorn season, the path becomes ever clearer.
December feels like standing with one foot in the old world and one foot in the new – the story is changing, and we’re changing with it.
December 4th, 2025 – Full Moon In Gemini
On December 4th or 5th, 2025 (depending on where you are on the globe) we have a Full Moon at 13° Gemini.
This Full Moon is square the Lunar Nodes, bringing us to a crossroads where the narrative we’ve been running starts to show whether it aligns with our real path – orneeds adjusting.
Our mind finally catches up with our soul’s direction, as we get a clearer understanding of what our hero’s – or heroine’s – task ahead is about.
At the full Moon in Gemini, the call to adventure has been answered – and there’s no turning back.
December 6th, 2025 – Grand Water Trine
On December 6th, 2025, we have one more Grand Water Trine. Jupiter in Cancer and Saturn in Pisces are this time joined by Mercury, now direct and at 24° Scorpio.
With Mercury as the activator, we now find clarity not by logic or external metrics, but by our internal barometer – how we actually feel inside.
Mercury in Scorpio trine Jupiter and Saturn just “knows” what makes sense and what doesn’t. Mercury becomes the translator of what we’ve been feeling but couldn’t quite name. “That” feels right. “This” is what I need.
This is a grand water trine, so it’s meant to be experienced. There’s no need to look outside for direction. What you’re feeling now IS the direction.
December 11th, 2025 – Neptune Turns Direct
On December 11th, 2025, Neptune turns direct at 29° Pisces, the very last degree of the zodiac.
From now on, my friend, there’s really no turning back.
With both Saturn and Neptune direct in the final degrees of Pisces, the momentum starts building toward the BIG ONE – the Saturn-Neptune conjunction at 0° Aries in February 2026.
One looooong 165-year journey is coming to an end. Pay attention to what’s reaching its inevitable culmination – what’s completing itself so a completely new cycle can begin.
December 11th, 2025 – Mercury Opposite Uranus
On December 11th, 2025, Mercury is opposing Uranus for the 3rd time.
This opposition is particularly important because it’s the last in the series of 3 – so it comes with some sort of conclusion or breakthrough.
The whole saga started back at the end of October, when Mercury and Uranus met for the first time. Mid-way through, the 2nd hit coincided with the New Moon in Scorpio in November – and now, we reach the 3rd and final chapter, where the plot twist finally makes sense.
Pay attention to any thread that started brewing back then and is now coming full circle. Given Mercury is direct now, we can expect surprising (and to some, not that surprising) news, insights, or realizations to land.
December 12th, 2025 – Mercury Re-enters Sagittarius
On December 12th, 2025, Mercury re-enters the Sadge territory, after its retrograde wanderings in Scorpio.
5 days later, on December 17th, it clears the first 6 degrees of Sagittarius – its retrograde shadow area.
What needed to be done was done, what needed to be said was said. NEXT!
December 15th, 2025 – Mars Enters Capricorn
On December 15th, 2025, Mars enters his sign of exaltation, Capricorn.
This is the most outcome-oriented Mars. If you want not to just get active or busy, but actually get things done – this is your transit.
Mars in Capricorn sticks around over the holiday period, which is great because this tends to be a chaotic time, and efficiency is… well, in short supply.
There’s no such thing as overwhelm for this “Chuck Norris” of Mars transits – you name it, Mars in Capricorn will do it.
In the weeks ahead, Mars in Capricorn will give you extra stamina, discipline, and staying power to follow through with your projects, no matter what.
December 20th, 2025 – New Moon In Sagittarius
On December 19th or 20th, 2025 – depending where you are on the globe – we have a New Moon at 28° Sagittarius.
The New Moon is conjunct Venus and Mars, and square Saturn and Neptune in Pisces.
We are ready for a new journey. We can feel the calling in our bones. BUT can we really move beyond the legacy of the past? Can we slay the old story and start fresh?
Or will this new beginning always be influenced by the narratives we’ve inherited?
How much of this journey called life is ours, and how much do we carry for others?
As with any Sagittarius transit, the answers are complex and philosophical. It’s rarely an “either/or” – it’s usually an “and.”
A new beginning and an old thread. A calling forward and a reckoning with what came before.
December 21st, 2025 – Sun Enters Capricorn
On December 21st, 2025, the Sun enters Capricorn. Happy b-day to all Capricorns, and happy Solstice to everyone!
Ancient civilizations across the globe built structures to honor the solstices and equinoxes – a reminder of how important these turning points were, moments when the Sun appears to shift direction in the sky.
The tropical astrology we use today is based precisely on these 4 markers: the 2 solstices and the 2 equinoxes.
While we may have lost some of the direct, earthy connection to nature that our ancestors lived by, tropical astrology is our modern way to stay attuned – using software instead of Stonehenge, angle-measuring sticks, or light temples – and still tap into the cyclical intelligence of nature.
December 24th, 2025 – Venus Enters Capricorn
On December 24th, 2025, Venus joins the Capricorn party right before Christmas – and that’s on theme, because in Capricorn, Venus loves traditions and anything that has substance and meaning.
She likes real Christmas trees, proper ornaments, handwritten cards, grandma’s recipes – with quality ingredients, of course. All those things that have weight, show commitment, and honor what (and who) matters.
Venus in Capricorn is responsible and committed. She’s not a “maybe.” She doesn’t overpromise. She’s discerning, has strong boundaries, and values what’s proven itself over time.
In a world of “I want it all, and I want it now,” Venus in Capricorn brings long-term vision and emotional maturity.
Notice how your value system subtly shifts when Venus enters Capricorn – and how you can pour this grounded, grown-up Venus energy into your life.
December 30th, 2025 – Mercury Square Saturn
On December 30th, 2025, Mercury (at 26° Sagittarius) is squaring Saturn (at 26° Pisces).
This is the perfect transit for an end-of-the-year retrospective – a time to look back, get honest, and understand what the year has actually taught us.
This is the final square of the Mercury-Saturn cycle, so something lands. We finally see, with no filters, the relationship between our goals and visions (Mercury in Sagittarius) and the actual outcomes (Saturn in Pisces).
What worked well? What didn’t? What needs to be left behind?
And this clarity naturally reveals new openings and possibilities. Mercury is now at the Galactic Center, tapping into an intelligence and perspective we normally don’t access in day-to-day life.
And next year, when Saturn (and Neptune) move into Aries, a completely new chapter begins – with completely new ‘everything’, a reset on every level.
Until then, and before you write your New Year’s resolutions, take time to write your 2025 retrospective. The best future always comes from understanding the past.
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The post The Astrology of December 2025 – Preparing for a New Era first appeared on Astro Butterfly.
