December 2025 Astrology Transits

The astrology of December...

December closes out the year with a mix of mental clarity, grounded determination, and visionary expansion. With Mars moving into Capricorn and a powerful Sagittarius New Moon lighting the night sky, there’s a strong invitation to get serious about long-term goals while still keeping the bigger picture in sight.

This month is very much a time of tying up loose ends while planting the seeds for what’s to come in 2026. Let's see what the transits have in store...

December 4: Full Moon in Gemini (13°03’, square North Node in Pisces / South Node in Virgo)

We start off the month with a Full Moon in Gemini, lighting up how we communicate, learn, and network. The square to the Nodes highlights lessons around discernment – what information, connections, or ideas are aligned with your growth vs what holds you back. It’s a time to balance curiosity with wisdom.

December 10: Neptune Direct in Pisces (29°22’)

Neptune stations direct at the very last degree of Pisces, bringing a wave of insight, imagination, and spiritual renewal. The fog may begin to lift around situations that have felt uncertain since June, helping you reconnect with your intuition and sense of divine timing.

December 11: Mercury enters Sagittarius

Mercury moves into Sagittarius and thinking becomes more big-picture and visionary. Curiosity expands, and conversations shift toward growth, travel, philosophy, or future plans once again, after crossing this same path last month –both before and after its retrograde. It’s a refreshing change from Scorpio’s intensity, though it may bring a tendency to oversimplify.

December 15: Mars enters Capricorn

Mars is exalted in Capricorn, giving determination, discipline, and stamina to pursue your goals. This is fantastic energy for long-term projects that require consistency and strategic action. Productivity gets a boost, but impatience with slow progress may also come up during this time.

December 20: New Moon in Sagittarius (28°24’, square Neptune in Pisces)

This lunation is ideal for setting intentions around vision, purpose, and adventurous growth. The square to Neptune, however, reminds us to ground our aspirations in clarity rather than idealism. Make sure that the seeds you're planting for 2026 have one dose of magic ... and one dose of realism.

December 21: Sun enters Capricorn

The Winter Solstice ushers in Capricorn season, grounding us in responsibility, structure, and long-term vision. It’s a natural time to reflect on what has been built this year and where your effort and focus should go in 2026. Hard work and integrity become your guiding light during this season.

December 24: Venus enters Capricorn

As one of the last major transits of the year, Venus joins Mars and the Sun in Capricorn, highlighting commitment, loyalty, and long-term values in love, money, and business. Your relationships may seek stability and maturity, while financial pursuits benefit from practicality and discipline.

As 2025 comes to a close, the cosmos ask us to align both our vision and our discipline. December’s blend of fiery expansion in Sagittarius and steady commitment in Capricorn creates the perfect balance between dreaming and doing. Take time to reflect, release, and reset so that when the clock strikes midnight, you’re ready to step into the new year with clarity and purpose.