Full Moon December 3rd 2017 in Gemini

December 2017 Full Moon in Gemini

December’s Full Moon is on Sunday, December 3rd at 10:47 PM EST; this Full Moon ends the cycle that started on May 25th 2017 with the New Moon in Gemini. The Moon moves into Gemini at 4:21 PM on Saturday December 2nd, and exits Gemini at 2:13 PM on Monday December 4th. This information is also available in list form in my December 2017 Cosmic Concerns post.

Importantly, Mercury, which is Gemini’s ruling planet, goes Retrograde just before the Full Moon at 2:34 AM EST on Sunday the 3rd. Because of that, I recommend doing your Full Moon ritual on the evening of December 2nd after 4:21 PM. You can do your ritual any time on December 3rd if you choose, of course. Regardless, to charge items, they should sit out on the night of the 2nd. December’s Full Moon is also a Supermoon, so enjoy the extra close Moon time.

My guide, Witch’s Guide to Full Moon Magick, can be found on the site here; this post is a companion to that guide. If you’re new to Moon magick that’s a great place to begin.

About December’s Full Moon

There are many names for December’s Full Moon, but the most common is the Cold Moon and Long Nights Moon. Native Americans called it the Cold Moon for obvious reasons; the December Full Moon shines down on some chilly weather. Additionally, some Native American tribes called it the Long Nights Moon because it’s the time of the year when the night is the longest. For modern people, winter can be anywhere between somewhat inconvenient and quite enjoyable, but traditionally winter was a time of extreme danger through which survival was not guaranteed. The message of December’s Full Moon, grounded in this tradition, is that the winter has arrived and it must be endured.

Full Moon in Gemini

Gemini is the third sign of the zodiac; a Mutable, Air sign, ruled by the planet Mercury. Gemini is associated with the twins, or yin/yang binary, and Gemini does embody those dual aspects. Gemini is an outgoing, intellectual, and curious sign. While Geminis are very curious, they are also easily distracted; they rarely get bored, but when they do, they find it intolerable. Because Gemini is a Mutable sign, they are able to go with the flow, and are playful, fun, and excellent communicators. Not surprising from a sign is ruled by Mercury. Unfortunately they also have the ever-moving planet’s reputation for changing their mind.

Gemini makes this Full Moon an good time to work on communication and partnerships in the days approaching the winter holidays. Since December’s Full Moon is all about surviving the winter, the Gemini Full Moon gives us an opportunity to have important conversations with loved ones as we prepare for the holidays ahead. However, Gemini’s ruling planet, Mercury, is going Retrograde with this Full Moon so double check contracts, plans, arrangements, and the like. My guide to the December 2017 Mercury Retrograde can be found here. If you’re cooking a big holiday meal, triple check your ingredients before you start cooking, and do it while the store is still open. Because of this holiday Mercury Retrograde, consider focusing your Full Moon work on mitigating or preparing for its inevitable effects. Mercury Retrogrades get a bad rap, but they’re wonderful times for bringings things to a close, perfect for the end of a year.

Suggested Activities


For an Gemini Full Moon I recommend working with Chrysocolla, Clear Quartz, Emerald, Fluorite, Green Jasper, Moonstone, or Watermelon Tourmaline. You can also work with twin crystal formations or crystals with inclusions. They can be used in crystal grids, charm bags, or charged to be used as pocket rocks. You can also use them for spell work or add their information to your Grimoire.


There are a number of Gods and Goddesses associated with Gemini; for this Full Moon you can choose one that you find interesting and add them to your Grimoire. Suggested God/desses include: Apollo, Artemis, Hermes, Inanna, Janus, and Mercury. You can also add information about December’s Full Moon or Gemini to your Grimoire.


Iris, Lavender, Lily, and Marjoram correspond to Gemini and work for the December Full Moon. They can be burned as candles, essential oil in a diffuser, or incense.


Gemini is associated with the Lovers and Magician cards in the tarot deck. You can add these cards to your Grimoire or you could do a simple one card tarot reading with one of them as a guide. Start by choosing one of Gemini’s cards as a guide; the Lovers if you want to ask about interpersonal relationships, the Magician card if you want personal guidance. Shuffle the tarot deck while asking your question as always, then flip over two cards, placing one to the left of your guide card, and the other to the right. The left card will show you the negative aspects of the outcome and the right card will show you the positive aspects of the outcome. Remember the Gemini is a dual sign; nothing is all good or all bad.


Peppermint is associated with Gemini, and it works well for a December Full Moon. If you’re relaxing with your Book of Shadows or writing a gratitude list, having a cup of peppermint tea while you do so will add an extra seasonal boost.


I must confess that I mildly dread Mercury Retrograde, this time wrapping up just past Yule, but before New Year’s. However, if anything will help it’s a consult with Gemini, and releasing those pesky expectations, of course. This is the close of the cycle that started in May 2017 and a change to move forward with the things we have learned. That’s always a good thing, in my opinion. Blessed be, friends!


Full Moon Names” on The Farmer’s Almanac
Gemini” on Astrology.com
“Gemini” in Llewellyn’s Complete Book of Correspondences
Llewellyn’s Witches’ Datebook 2017

Image Credit

Header image via NASA
Top image via Pexels

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