The Ancient Greek Myth of Alcyone
According to the Greek myth, the Kingfisher days are a result of Zeus. Alcyone was the daughter of the king of the winds, Aeolus. Alcyone’s husband was Kyekas, who one day went fishing and never returned. Alcyone searched for the body for days, and when she could not find it, the gods had pity on her and turned her into the “kingfisher” bird (in Greek, Αλκυόνι). In another myth, Alcyone saw her lover’s ship being sunk by the winds, and in her sadness she fell off a cliff and died. The gods were impressed by her display of love and turned the couple into kingfisher birds. Alcyone laid her eggs by the sea, but the babies were carried away into the sea. Zeus had pity on her and granted her a few days in the winter with warm weather, so that she could hatch her eggs. Zeus ordered Aeolus, the king of the winds, to stop the winds on these days.
The Science of Halcyon Days
Apart from the myth, Greece’s Meteorological Service has another explanation for the phenomenon. Director of Forecasts for the National Meteorological Service, Antonis Lalos, said that officially, Halcyon days are “three or four days together characterized by sunshine, and a high temperature difference between the day and the night, sometimes between 15 and 20 degrees Celsius in many cases.” Data shows that Halcyon days usually happen between about December 15 and early February.