Skip to Content

Moon Trine Moon Synastry: Relationships and Friendships Explained

Moon Trine Moon Synastry: Relationships and Friendships Explained

Our readers support us. This post may contain affiliate links. We earn from qualifying purchases. Learn More

Moon trine Moon is one of the most pleasant aspects between two people in synastry. This aspect will bring deep understanding and harmony to any relationship.

The Moon is one of the two Luminaries, and it is the most important planet when it comes to matters of everyday life. It governs all of the ordinary matters that we deal with regularly.

The Moon also governs our habits, both conscious and unconscious, and how we naturally behave. All of these matters can have a deep impact on a relationship, particular one that becomes close.

A trine is the most harmonious aspect. In synastry, it shows where two people naturally understand each other.

Moon Trine Moon in Synastry

The Moon trine Moon in synastry indicates a relationship in which two people have a deep, intuitive understanding of one another. It is easy for them to relate to each other, and by itself, this aspect indicates compatibility between two people.

The Moon is the Luminary that governs day to day activities. It also governs habits and unconscious attitudes and behaviors.

When two people have Moon trine Moon, they will naturally find themselves in harmony with one another. They will instinctively know what the other wants and needs.

Moon trine Moon is quite powerful, and it will smooth over all but the most difficult other synastry aspects.

The Moon rules the night, so in theory this aspect will be more powerful in the Night Signs, which are Taurus, Cancer, Virgo, Scorpio, Capricorn and Pisces. Yet, there are a few special cases among these signs which I will discuss below.

Moon trine Moon will be a little weaker in the Day Signs, which are Aries, Gemini, Leo, Libra, Sagittarius, and Aquarius. On the other hand, it will operate as expected between all of these signs.

The Night Signs are divided into two elements. These are the Earth Signs, Taurus, Virgo, and Capricorn, and the Water Signs, Cancer, Scorpio, and Pisces. Below are the special cases according to element.

Earth Signs

In the Earth Signs, the Moon is exalted in Taurus and in detriment in Capricorn. If the trine occurs between these two signs, the person whose Moon is in Taurus will feel strong love and attachment to the other person.

The person whose Moon is in Capricorn will have more complicated feelings. They will love the other, but they will also feel a sense of detachment and can seem a bit cold at times.

In the situation in which one person has the Moon in Virgo, the other person will generally have the Moon in either Taurus or Capricorn.

If the other person’s Moon is in Taurus, this will make the trine stronger and more positive. If the other person’s Moon is in Capricorn, it will weaken this aspect.

Water Signs

There is a similar situation in the Water Signs in that the Moon rules Cancer and is in its Fall in Scorpio.

If Moon trine Moon occurs in these signs, the person with the Moon in Cancer will have a deep and strong bond with the other person. The person whose Moon is in Scorpio, however, will have more complicated feelings.

The bond will still be strong, but the stormy emotions of Moon in Scorpio will make it hard to let go and trust the other person.

The situation will be even more difficult if one person has the Moon in Scorpio and the other has the Moon in Pisces. In this case, it is more likely that the person whose Moon is in Scorpio will hurt the other person’s feelings.

The best case scenario is if one person has the Moon in Cancer and the other has the Moon in Pisces. This will make Moon trine Moon even more positive than it already is.

House Position

In addition to the special sign combinations, it is important to look at the house that the Moon falls in each other’s charts.

For more information, see:

Moon in Houses Synastry Meanings: 1st through 12th House

Man’s Moon Trine Woman’s Moon Relationship

Moon trine Moon is an extremely good aspect to have in a romantic relationship. This aspect will be especially helpful if the relationship deepens into a marriage or if the two move in together.

The two will feel comfortable with each other right away. They may feel like they have known each other for years from the moment that they meet.

This relationship will likely start off as a very close friendship, and the friendship element will always be there.

Moon trine Moon does not necessarily bring physical chemistry, however. It will be important to look to other aspects between them for whether they will be attracted to each other in this way.

This aspect will really be helpful if the two live together. They will be able to intuitively and seamlessly navigate their chores and daily activities will very little difficulty.

Moon Trine Moon in Friendship

Moon trine Moon is a wonderful aspect in friendship as well. In general, friends with this aspect between them will very quickly become quite close.

These will be friends who understand each other on a very deep level. They will also naturally be able to comfort each other during difficult times.

If the two are of the right gender and sexual orientation, it is possible that the friendship will become a romantic relationship over time. This is not inevitable, though, by any means.

If one or both of them become involved in a romantic relationship with another person, they will need to navigate this with their partners.

It is possible that their romantic partners could become jealous of their closeness, so this will need to be discussed and negotiated to avoid potential conflict. The best-case scenario is for their partners to accept their friendship, as it will be good for both of them.

How to Tell if Moon is Trine Moon in Synastry

Signs of the same element are trine one another. The graphic below shows the signs that are trine by element:

Earth, Air, Water and Fire Trines by Zodiac Sign in Synastry

Two people will have some of the benefits of this aspect if their Moons are in signs that are trine each other.

To get the full benefits, the planets must be within twelve degrees of a perfect trine. This is the orb of the Moon. The closer the aspect is to exact, the better.

It is possible for two people to have their Moons within twelve degrees from the wrong signs. In this case, the Whole Sign relationship between them will be problematic. It will either be a Whole Sign square or their Moons will have Whole Sign aspect at all.

Either way, the Whole Sign aspect will be most important. The cross-sign Moon trine Moon will soften and moderate the more difficult one.

Try Our Compatibility Calculator



Moon trine Moon is a powerful positive aspect in synastry. It will confer compatibility by itself.

Two people with this aspect will intuitively understand one another. They will also naturally be sources of support and comfort for each other.