What Is Your Moon Sign and Why Does It Matter?

An image of the moon over the clouds, which are tinted with orange and teal light.

The Power of Your Moon Sign

Most people know what their sun sign is, but fewer understand the depth and importance of their moon sign — even despite its intense astrological significance. Just as your sun sign is based on where the sun was at the time of your birth, your moon sign is determined by the degree of the moon’s transit at that same moment. Your moon sign reveals what makes you happy. It also shows how you “feed” your heart and take care of yourself when you’re emotionally down, mirroring how you feel and act at home when you’re with your friends, lovers, and family members.

Moon vs. Sun: What’s the Difference?

Most people know their astrological “sign” as their sun sign. Your sun sign is associated with you and with all people born during the 30-day period in which the sun moved through that sign of the zodiac. It indicates your basic self, your ego, and your behavior in public. Meanwhile, your moon sign is more connected to your inner self. How are you when you’re alone? What are you like in the deepest corners of your soul? However, despite their differences, these two parts of your astrological chart are not entirely disconnected, as your moon sign can strongly modify how you express your sun sign. This is a large part of why people born under the same sun sign can be so different.

Why Your Moon Sign Is Significant

For starters, someone’s moon sign can help them (and others) understand their emotions and motivations. What needs drive their actions and decisions? Knowledge of your moon sign can help you understand why your outward, sun-associated traits display themselves as they do.

Because the moon changes signs once every two-and-a-half days (approximately), and because it reveals your “heart” and your deepest needs, some astrologers say that a person’s moon sign can be even more important than their sun sign when it comes to understanding them.

The moon represents the flow of activities and events in your life, as well as the emotions that motivate you to take action. Some people are even dominated by their moon sign more than they are by their sun sign. (Often, people who lead with their moons have their moon in Cancer — where it rules — or in Taurus, where it is exalted.)

The significance of the moon’s placement in your natal chart goes beyond its sign. If the moon is in an angular house (namely Houses 1, 4, 7, or 10), or if it is strongly aspected by other significant planets in your chart, then your moon sign can become more powerful than most.

Your moon is the first thing you should look to when you seek happiness. It represents the things that are like life and breath to you, and it can explain why you want what you want. It will drive a lot of your decisions about work, relationships, home, and hobbies. It could even influence what you eat for dinner!

The Moon Always Signals Change

The moon, itself, is constantly inconstant. It moves quickly, transiting through approximately one astrological degree per hour and making its way through an entire sign in about two-and-a-half days. During its 28-day cycle, it moves through eight distinct phases and transits through all 12 signs of the zodiac in the process.

How Your Moon Sign Helps You

Knowing the sign, house, and phase that the moon was in at the time of your birth can help you understand why you approach your relationships and your job, as well as the world as a whole, the way you do.

Once you know your moon sign — as well as other details, such as its degree and phase during your birth — you can study the moon’s current transit and use that knowledge to your advantage. With time, you will learn that there are some moon signs and phases that you like working with, and there will be ones that serve as a warning for you to “lay low.” This will give you the information you need to effectively interact with your environment and understand the role you play in your community.

How To Learn Your Moon Sign, House, and Phase

The easiest way to learn more about your moon sign is to use the natal chart calculator on the California Psychics app! If you’re having trouble accessing your natal chart, though, or if you just want a deeper understanding of what it means, ask any astrologer for help. They will be able to tell you the sign, house, phase, and degree of your birth moon, and they can give you insight into the most important personal takeaways from your chart. This will help you use the knowledge in your chart to your benefit, allowing you to cultivate healthier relationships not just with other people, but with yourself as well.

Learning About the Moon Pays Off

By knowing and working with the constantly changing energy of the moon, you can harmonize with the energy of the Universe and use its cosmic tides to support you as you move in the direction that you’d most like to go.

All the information about your moon sign in your natal chart can help you know when to “pour it on” and when to “coast” as you schedule your daily life. Understanding your limits and the things that motivate you are a key part of figuring out your personal values and making the most of your astrological influences.


Astrology plays an important role in your day-to-day life. The planets are responsible for your moods, experiences and more, which is why you should get a Psychic Astrology Reading. Our Astrology Psychics can calculate your natal chart and tell you about the important dates in your life (past, present, and future) that will massively impact you. Learn more about our psychics from real testimonials and read through our Astrology & Numerology Blog. Want to read more about your personal birth chart first? Get a free birth chart report today! Find an Astrology Psychic or learn more about Astrology Readings.


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