Why you shouldn’t mistreat cats on January 26

We explain the signs and beliefs associated with this folk date, which was a day for staying indoors and observing felines for clues about the weather and health.
Feb 12, 2026
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Cats were seen as omens and healers in Russian folk traditions on this day.
Source:
Daria Parashchenko / 93.RU

January 26 marks Ermilov Day on the church calendar, dedicated to the memory of the holy martyrs Ermil and Stratonic of Singidunum. Among the people, this day was shrouded in special traditions, omens, and even prohibitions closely linked to the winter cold and domestic animals.

In Rus« (ancient Russia), when bitter frosts crackled outside, Ermilov Day was traditionally spent at home in warmth and comfort. Special attention was paid to the cat—a faithful human companion. Our ancestors used its behavior to predict the weather. For example, if a cat curls up into a ball and hides its snout, it means a freeze is coming.

Cats were also ascribed healing properties. Elders advised that when feeling unwell, one should observe where the beloved pet most often lies down, and then «stand on that spot and not leave it for as long as possible.» Cats were generally highly revered, with the belief that killing one of these animals dooms a person to seven years of misfortune.

There were other prohibitions and observations. For instance, a foggy ring around the moon on Ermilov Day foretold a heavy snowstorm. On this day, one must not offend cats—this was considered an extremely bad omen, promising illness, problems at work, or even a fire. Encountering a black cat, dog, or rooster crossing the road foretold trouble at home. Excessive hard work on this day could also undermine one«s health.

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