What Is Your Moon Sign and What Does It Mean?

Most people learn their Sun sign early and never get much further. It turns up in magazines, on birthday cards, in casual conversation. But if you have ever read a description of your Sun sign and thought "that's not quite me", there is a good chance you would recognise yourself more easily in your Moon sign.

In a birth chart, the Sun is only one of ten or so bodies astrologers look at. The Moon is the other one that gets talked about most, partly because it is the fastest moving and partly because of what tradition says it stands for. Here is how it works and what it is meant to describe.

Your Moon sign is simply where the Moon was when you were born

The Moon travels round the whole zodiac in about 27.3 days, which works out at roughly 13 degrees of sky a day. Since each sign covers 30 degrees, the Moon spends only two to three days in each one before moving on.

That speed has a practical consequence. Your Sun sign stays the same for about a month, so almost anyone can work theirs out from a date alone. The Moon changes sign often enough that the date is not always sufficient. On most birthdays it is: the Moon stayed in one sign for the whole of that day, and that is your Moon sign no matter what time you were born.

The exception is a changeover day. If the Moon moved from Taurus into Gemini at four in the afternoon, people born that morning have a Taurus Moon and people born that evening have a Gemini Moon. On those days the birth time decides it.

The free Moon Sign Calculator on this site works it out from a date of birth and tells you whether the Moon changed sign that day, so you know straight away whether a birth time is needed.

What to do if you don't know your birth time

Plenty of people don't have it. In the UK, birth certificates do not normally record the time of birth, so it is not something you can simply look up on your own paperwork. If you land on a changeover day, a few things are worth trying:

• ask whoever was there, or anyone who was told at the time
• check baby books, cards, photo albums or old letters, where the time was often written down
• ask whether hospital records from the birth still exist and can be requested
• failing all that, read both descriptions and see which one sounds more like you from the inside

That last option is rougher than a calculation, but it is what astrologers often fall back on. If neither one fits, the sign that was in place for most of the day is the more likely of the two.

Moon Sign Calculator

Find your Moon sign from your date of birth, calculated precisely, plus the Moon phase you were born under and what your Moon says about your emotional needs.

Try our Moon Sign Calculator free, here on this site →

What the Moon is said to describe

Astrologers draw a fairly clear line between the two lights. The Sun is read as identity and purpose: what you are aiming at, what you want to become, the part of yourself you build up deliberately over a lifetime. It answers "who am I?"

The Moon is read as the part underneath that. Traditional interpretations put these at the centre of it:

• emotional needs, and what has to be in place before you feel settled
• instinctive reactions, the things you do before you have thought about them
• what makes a place feel like home
• habits, routines and the small comforts you return to
• how you look after other people, and how you like to be looked after
• the private self, the version of you that close family and old friends see

One is direction, the other is what you need on the way there. A Sun sign description might tell you that you are ambitious and like to be in charge. A Moon sign description is more likely to tell you whether you recover from a bad week by seeing twenty people or by shutting the door and cooking something.

This is also why so many people say their Moon sign fits them better. Sun sign writing describes an outward character, and plenty of us do not feel like that from the inside, especially if we are shy, or private, or still working out what we want. The Moon describes something you do not have to grow into. It is closer to a default setting, which is often why it feels more recognisable to people who know they behave quite differently at home than they do at work.

Your situation may be slightly different. ask a question below ↓ and our editorial team will reply with our advice.

A simple way to start: the four elements

There are twelve possible Moon signs, and reading twelve descriptions in a row tends to blur them all together. Start with the four elements instead, since signs of the same element are said to share a broadly similar emotional style.

• Fire Moons (Aries, Leo, Sagittarius) are traditionally read as needing activity, warmth and something to look forward to. Feelings tend to arrive quickly, get expressed, and pass. Boredom and being hemmed in are thought to be the real difficulties, more than any particular upset.
• Earth Moons (Taurus, Virgo, Capricorn) are associated with needing solid ground: a reliable routine, a comfortable home, money that is not about to run out. These placements are read as steady and practical about emotion, more inclined to fix a situation than to talk it over at length.
• Air Moons (Gemini, Libra, Aquarius) are linked with needing to put things into words. Company, conversation and a bit of mental space are said to matter, and there is often a habit of standing slightly back from a feeling in order to understand it.
• Water Moons (Cancer, Scorpio, Pisces) are read as the most sensitive to atmosphere. Tradition here emphasises deep attachments, long memories and a need for privacy and safety before anything gets shared.

None of these is better or easier than the others. They point at different things you might need on a difficult day.

When the Sun and Moon pull together, and when they don't

Once you know both signs, the interesting part is how they sit with each other. Sometimes they agree. A Leo Sun with a Sagittarius Moon has fire in both places, and what that person wants and what they need tend to point the same way. Life may feel more straightforward, though the shared blind spots are doubled up too.

More often there is friction. A Capricorn Sun with a Pisces Moon is a familiar combination: someone who builds a career carefully while needing far more quiet and emotional shelter than colleagues would guess. Astrologers do not treat that as a fault. It is usually read as the reason a person can seem inconsistent, and as something worth taking seriously rather than overriding.

Worth adding that the Sun and Moon together also produce the phase you were born under, which some astrologers read on its own. Near a new Moon the two are close together in the sky and usually in the same sign, and that birth is read as instinctive and forward looking, with the emotional and conscious sides working as one piece. Near a full Moon they sit opposite each other, and that birth is read as more aware of the gap between what you want and what other people need. These readings come from astrological tradition rather than from anything the astronomy itself tells you.

If you take one thing from this, let it be that your Sun sign is not the whole description. Find out where the Moon was on the day you were born, read it alongside what you already know, and see which parts you actually recognise.

The Next Step

Now that you have read through the advice above, you might want to put it into practice. Our Moon Sign Calculator lets you find your Moon sign from your date of birth, calculated precisely, plus the Moon phase you were born under and what your Moon says about your emotional needs. Try it now →