This is a typical Saturn-Jupiter combination that does not hold out much promise for joy or happiness within the marriage. Unless Sagittarius can clip her wings a bit and curtail her excessive love for freedom, there is strong reason for the two to avoid getting into such a relationship. Their temperaments are entirely different, Sagittarius being optimistic and open, and her teammate, Capricorn being too pessimistic and secretive. The devil-may-care attitude of Sagittarius would shock the sombre and inhibited Capricorn temperament. Lighthearted Sagittarius would be equally unhappy with such a serious partner, as she likes to believe that love surpasses all else. We can see here the vast difference between an austere, conservative Capricorn and the outgoing, risk-taking Sagittarius. Not much by way of compatibility but as with most earth-water combinations, they can certainly learn from one another.