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Tuesday the 13th: Why is it Considered Unlucky?

Published January 13, 2026, 08:18
Tuesday the 13th: Why is it Considered Unlucky?

Tuesday the 13th is traditionally considered the unluckiest day of the year. This superstition has roots in Greek and wider European tradition, where Tuesday is associated with negative influences, such as the Fall of Constantinople. The number 13 is also considered unlucky, as it disrupts the harmony of 12, a number with symbolic significance in many cultures. In Greek folklore, Tuesday is considered unlucky due to the astrological influence of the planets Mars and Saturn. The proverb “On Tuesday, do not get married or start a journey” reflects the belief that this day is not suitable for important decisions or actions.