Cancer and Libra Compatibility
Square, same modality
This is not a score. It is what the two of you are actually working with.
- First sign
- Cancer · Water · Cardinal · ruled by the Moon
- Second sign
- Libra · Air · Cardinal · ruled by Venus
- Relation
- Square, same modality
How these two meet
Cancer and Libra: two people who look after things, and neither of them is being looked after.
Everybody who knows the two of you uses the same word about you both, and the word is kind.
That is the whole of the trouble, because you are kind to different things and you have both been calling it by the one word for years.
Cancer looks after the person: what they need, whether they have eaten, what is going on with them that they have not said. Libra looks after the situation: whether it is comfortable, whether anybody is stranded, whether the temperature of the room is survivable for everyone in it.
So Cancer feeds one person while Libra keeps the whole table pleasant, and each of you has privately decided the other one is doing the easier version.
The Moon is the nearest body there is, crosses the whole zodiac in 27.3 days and changes shape the entire way round, in public. Venus never gets more than 47.3 degrees from the Sun and is the brightest thing in the sky after the two lights. One of you cannot hide the state they are in. The other cannot be in a room without adjusting it.
Which is why, when Cancer is not all right, Libra makes the room comfortable and Cancer experiences being managed. And when Libra is not all right, Cancer asks directly, and Libra experiences the room becoming about them, which is the single thing they have organised a life around preventing.
Whose comfort has this house been organised around?
For Cancer, the work is letting the room be uncomfortable for an hour instead of asking Libra how they are.
For Libra, the work is being not all right in front of Cancer and not smoothing it the moment it lands.
The Moon shows every state it is in and Venus keeps the room level, and neither of you chose which of those you were going to be.
Which of you has been all right this whole time, and which of you was ever asked?
90 degrees apart
Ninety degrees apart, a quarter of the wheel, and the classical aspect with the reputation. Signs three along always share a modality, which is to say the same instinct about speed, and their elements always sit on opposite sides of the active and receptive divide. Same tempo, opposite substance. The friction is structural, and it is not a disagreement about what either of you wants.
When the Sun is in each of these signs
These are the real dates, calculated with the Swiss Ephemeris rather than the fixed calendar most sign pages repeat. All times are UTC.
Cancer
- 21 June 2027 to 23 July 2027
- 20 June 2028 to 22 July 2028
- 21 June 2029 to 22 July 2029
Libra
- 23 September 2026 to 23 October 2026
- 23 September 2027 to 23 October 2027
- 22 September 2028 to 22 October 2028
Want the exact version?
A sign is still a general lens: it says nothing about where your Moon or your Venus actually fell. A synastry report reads your two real birth charts against each other, with the aspects that are genuinely there.
See the Synastry Report