The Sun square Venus is a complicated aspect in synastry. It can generate chemistry, but it can also cause difficulties.
In synastry, the Sun represents a person's ego and identity. Venus is the main planet involved in relationships of all kinds.
Squares show friction and can generate conflict. They can also produce chemistry, especially in romantic relationships.
Sun Square Venus in Synastry
When the Sun is square Venus in synastry, it usually indicates attraction, but it may not be a healthy attraction.
If the two are not family members and are of the right combination of gender and sexual orientation, there is a good chance that at least one of the two has romantic feelings for the other. There is also the possibility that these romantic feelings are one-sided.
If the feelings are mutual, it still could be a rather rocky romance, depending on the other synastry aspects between the two.
Venus and Mercury are always close to the Sun in any given natal chart. Because of this, if the Sun is square Venus, there are likely to be other complicated synastry aspects involving these three planets, which could change the interpretation.
If this aspect occurs in any of the Fixed Signs, it will also change the interpretation.
Sun in Taurus
If the Sun is in Taurus, it is in a sign ruled by Venus. The person whose Sun is involved will tend to find the other person very attractive.
If the other person's Venus is in Leo, which is ruled by the Sun, their attraction will be mutual. This aspect will enhance the compatibility between the two.
If the other person's Venus is in Aquarius, the attraction will likely be one-sided because Aquarius is hostile towards the Sun.
Sun in Leo
The Sun rules Leo, so it is very strong in this sign. As a general rule, this is a positive placement, but it can present some trouble for relationships.
In particular, the person with the Sun in Leo will be quite self-sufficient, so they may not feel the need for other people.
Taurus is one of the signs that Venus rules, so the person with this placement is also strong and self-sufficient. The two will be attracted to each other, and there will be a strong sense of equality between them.
When the other person's Venus is in Scorpio, their Venus is debilitated. This will make it hard for this person to feel confident around the person whose Sun is in Leo, who may see them as needy and unstable.
There will be an inherent inequality when one person's Sun is in Leo and the other's Venus is in Scorpio.
Sun in Scorpio
Scorpio is hostile to Venus, so there will be a natural antipathy on the part of the person whose Sun is in Scorpio to the other person.
If the other person's Venus is in Leo, the sign ruled by the Sun, that person is likely to have a one-sided attraction to the other.
If the other person's Venus is in Aquarius, the antipathy will be mutual. Aquarius dislikes the Sun as much as Scorpio dislikes Venus. This is a combination that will greatly reduce the compatibility between the two.
Sun in Aquarius
The Sun is never happy in Aquarius, and Aquarius as a sign tends towards excessive independence.
If the other person's Venus is in Taurus, however, they will be able to melt the boundaries of Aquarius a bit, and a relationship could form. It will proceed slowly, but once it is formed, it will last a long time.
If the other person's Venus is in Scorpio, though, this will exacerbate the difficulty. Neither of them will tend to push for a relationship. This combination will decrease the compatibility between them.
The meaning of Sun Square Venus in synastry will also be modified by the houses that these planets fall in each other's charts.
To learn more, see:
Man's Sun Square Woman's Venus Relationship
In relationship synastry, a man's Sun square a woman's Venus can be problematic.
By itself, with this aspect, there is a big risk that he is attracted to her physically, but is not interested in any long-term relationship or commitment.
She, on the other hand, may very well fall in love with him. This could turn into a difficult and painful situation, especially for her.
If this relationship does turn into something more serious, she is still likely to have much stronger feelings for him than he does for her.
On the other hand, it is important to remember that no one aspect or synastry configuration acts by itself. Other aspects could modify the reading of this combination.
Woman's Sun Square Man's Venus Relationship
This combination also runs the risk of being one-sided. This time it is he who cares more about her than she does about him.
She may intentionally or unintentionally lead him on. It is possible that she has feelings for him, but she will not want the level of commitment that he does.
As is the case when the genders are reversed, it is important to consider all of the synastry aspects. There may be other aspects that point to a more mutual relationship.
Sun Square Venus in Friendship
This aspect is not bad for friendships, per se. The person whose Venus is involved is likely to be more dedicated to the friendship than the one whose Sun is involved, however.
If there is any chance of a romantic involvement between the two, one or both of them may have a crush on the other.
The person with the crush may suffer in silence, especially if it is the person whose Venus is involved.
That being said, it would be best for these two to stay friends. A romantic entanglement runs the risk of ruining the friendship.
If there is no chance of romantic feelings between them, this aspect is mildly positive. They may not become close friends, but there will be a sense of mutual affection between them.
How to Tell if the Sun is Square Venus in Synastry
Each sign has a different combination of Element and Mode. The Elements show the fundamental nature of the sign, and the Modes show how they act in the world and respond to change.
Signs that are square have the same Mode, but are of incompatible Elements. These signs are very different from each other, but they are alike enough to get under each other's skin.
The graphic below shows the signs that are square by Mode:
If the Sun and Venus are in signs that are square, the influence of a square will be present.
For the square to be of full strength, the planets must be within twelve degrees of each other. The closer the planets are by degree, the more powerful the aspect will be.
The Sun and Venus might be in a square by degree from the wrong signs. In the case of the Sun square Venus, this is tricky because by element, the planets will either be trine or sextile.
Because of this, a cross-sign square between the Sun and Venus will indicate enhanced compatibility with a surprising tension between them.
In synastry, the Sun square Venus generally indicates a one-sided attraction.
On the other hand, there are often other major aspects between the Sun, Mercury, and Venus, which will change this interpretation. All of these aspects must be considered as a whole.
This aspect is much less problematic in friendship, especially when there is no chance of either developing romantic feelings towards the other.